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Theodore Ts'o5a009bb2001-05-21 05:27:45 +00001E2fsprogs 1.20 (May 20, 2001)
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +00002=============================
Theodore Ts'o5570a652000-08-21 01:23:39 +00003
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +00004Add support for replaying the ext3 journal purely in user mode,
5including handling the orphaned inode list. Used code contributed by
6Andreas Dilger, with bug fixes and the orphaned inode handling done
7by Theodore Ts'o.
8
9The mke2fs and tune2fs programs can create or modify a filesystem to
10include an ext3 journal. Tune2fs also can be used to remove an ext3
11journal from a filesystem.
Theodore Ts'o5570a652000-08-21 01:23:39 +000012
13E2fsck will now check for the existence of a linked list of orphan
14inodes in the superblock, and clear those inodes before starting the
15rest of the filesystem check (but after the journal playback).
16
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +000017E2fsck now validates the file descriptor passed to the -C option,
18which saves against the completion bar getting written to an
19unexpected location, such as the disk being checked. (Debian
20bug/wishlist #55220)
21
22E2fsck will now bump the filesystem revision number from zero to one
23if any of the compatibility bits are set.
24
25Fixed a bug where a badly corrupted directory on a big endian system
26could cause e2fsck to die with a bus error. The
27ext2fs_read_dir_block() and ext2fs_process_dir_block() functions in
28the ext2 library now does alignment sanity checks on the rec_len field
29of the directory entry before using it.
30
31The ext2 library has been enhanced to make tune2fs safe to run on
32mounted filesystems. (Users could usually get away with using tune2fs
33on mounted filesystems before, but with the advent of ext3 and
34journaling, it became important to make tune2fs was *really* safe for
35use even when the filesystem being modified is mounted.) E2label is
36now implemented by tune2fs using an argv[0] dispatch, so that e2label
37is also now safe for use on mounted filesystems.
38
39Added a new program, e2image, which creates a backup of critical ext2
40filesystem data structures. The generated image file can be examined
41using dumpe2fs and debugfs. In the future, e2fsck will be able to use
42the image file to help recover very badly damaged filesystems.
43
44Fixed a number of LFS bugs in e2fsck; very, very large (> 2**42) files
45no longer cause e2fsck to bomb out. Also treat files > 2GB as being
46large file when deciding whether or not the filesystem has large files.
47
48Fixed lsattr and chattr so that they work correctly on large files.
49(Fixes Debian bug #72690.)
50
51Removed limitation in get_device_size() which imposed a one terrabyte
52filesystem limitation. (Most 2.2 kernels still have a signed int
53problem which cause 1 TB block device limitation. Fortunately, the
54kernel patches to fix this are much easier than fixing the 2TB
55limitation in the kernel. :-)
56
57A max_mount_count of zero is now treated as if no mount count were
58set. (Previously, no mount count was indicated by using -1, and a
59mount count of zero caused e2fsck to always be run.)
60
Theodore Ts'o77648562001-05-14 13:04:44 +000061Mke2fs supports two new filesystem types largefile and largefile4.
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +000062
63Mke2fs now adds some randomness in s_max_mount_count so that multiple
64filesystems won't be all checked at the same time under normal
65operations.
66
Theodore Ts'o5570a652000-08-21 01:23:39 +000067Fixed bug in the progress bar printing code which could cause e2fsck
68to core dump on an illegal filesystem.
69
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +000070Fixed bug in fsck which could allow more than one instance of e2fsck
71to be printing a progress bar. (Debian bug #65267)
72
Theodore Ts'o5570a652000-08-21 01:23:39 +000073Fsck using a UUID or a LABEL specifier will work even if devfs is
74compiled into the kernel and not mounted. If the pathnames in
75/proc/partitions are incorrect, fsck will search /dev for the correct
76device (using the new ext2fs_find_block_device library function).
77Fsck now also checks the RAID devices first so that they are properly
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +000078found when they are in use. Support has also been added to support
79additional IDE disks and the DAC 960 device names. (Debian bug #94159)
80
81Fixed a bug in fsck which caused it not deal properly with 16
82byte long filesystem labels.
Theodore Ts'o5570a652000-08-21 01:23:39 +000083
Theodore Ts'o5a009bb2001-05-21 05:27:45 +000084Fsck's -t option has been made a lot more flexible. The semantics for
85what happens if a comma-separated list to fsck has been regularized,
86and it is now possible to filter what filesystems will get checked
87based what is in the filesystem's fstab entry's option field. (Debian
88bug #89483.)
89
Theodore Ts'o5570a652000-08-21 01:23:39 +000090The dumpe2fs program can now print out the group description
91information in hex, and also prints the location of the superblock and
92block group descriptor for those block groups that have them.
93
94Mke2fs now clears the ext2 superblock before it starts creating a
95filesystem, so that the superblock magic number is only written if the
96filesystem creation process successfully completes.
97
98The debugfs program's stat command now pretty-prints the blocks used
99by an inode so that it's more compact and informative.
100
101The debugfs stats command now uses the same libe2p code (which is used
102by dumpe2fs) to print the superblock header information. This is more
103complete, and it avoids a bit of code duplication.
104
105Added a new debugfs command, set_super_value (ssv) which allows the
106user to set arbitrary superblock fields.
107
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +0000108Debugfs was extended to support inode numbers in hex (by prefixing
109them with 0x), and so that modify_inode can set the inode generation
110number. Also, there is now a new function command called logdump
111which will dump an ext3 journal.
112
113Fixed a bug in debugfs so that quitting out of the pager doesn't kill
114debugfs.
115
116Debugfs's dump command now stops immediately upon reporting a disk
117read error. (Fixed a bug in ext2fs_file_read library routine which
118caused debugfs not to stop.) (Debian bug #79163)
119
120On systems with /proc/mounts (mainly Linux systems), /proc/mounts is
121checked before /etc/mtab is used, since /proc/mounts is more likely to
122be accurate.
123
124Added portability fixes for Solaris and Linux/ia64.
125
126Various manual pages were clarified and cleaned up. (Fixed debian
127bugs #63442, #67446, and #87216)
128
Theodore Ts'o5570a652000-08-21 01:23:39 +0000129
130Programmer's notes:
131-------------------
132
133The e2fsck message printer now supports %Iu and %Ig, which will print
134out the inode's user and group owners, respectively.
135
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +0000136E2fsprogs now includes its own version of include/linux/ext2_fs.h, so
137that no longer dependent on the system having the correct version of
138the kernel header files.
139
Theodore Ts'o5570a652000-08-21 01:23:39 +0000140Added a new function to libext2, ext2fs_find_block_device(), which
141searches the system (i.e., /dev, /devfs, /devices) for a pathname to a
142device given its device number.
143
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +0000144Added a new function to libext2, ext2fs_sync_device, which centralizes
145all of the places which might try to use the BLKFLSBUF or FDFLUSH
146ioctls (and usually failing to define them since the system header
147files don't usually do this for us, and we're trying to avoid usage of
148kernel include files now).
149
Theodore Ts'o5570a652000-08-21 01:23:39 +0000150Added new utility programs in tests/progs: random_exercise and
151hold_inode. They aren't built by default; they're useful for
152exercising ext3 filesystem code.
153
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +0000154Added a new ext2 filesystem flag, EXT2_FLAG_SUPER_ONLY, which causes
155the filesystem close functions to only update the superblock, and to
156not touch the block group descriptors. Needed by tune2fs when
157modifying a mounted filesystem.
158
159Got rid of struct ext2fs_sb and replaced it with the standard struct
160ext2_super_block from include/linux/ext2_fs.h. Note: this may break
161source (but not binary) compatibility of some users of the ext2
162library. Those applications should just simply do a global search and
163replace of struct ext2fs_sb with struct ext2_super_block, and use
164their own private copy of ext2_fs.h if they aren't already.
165
166The ino_t type has been renamed ext2_ino_t to protect applications
167that attempt to compile -D_FILE_OFFSET_BITS=64, since this
168inexplicably changes ino_t(!?). So we use ext2_ino_t to avoid an
169unexpected ABI change.
170
171The Makefiles have been reworked so that "make check" can be run from
172the top-level Makefile.
173
174Fix general gcc -Wall complaints and removed dead code.
175
176Remove use of NOARGS, because we assume everyone does ANSI C these
177days.
178
179Added build-rpm script from sct.
180
181New functions ext2fs_image_{inode,super,bitmap}_{read,write} added
182to support e2image.
183
184New function ext2fs_flush_icache which must be called if the
185application program modifies the inode table blocks without going
186through ext2fs_write_inode() interface.
187
188New ext2fs_check_mount_point() function, which will return the mount
189point of a device if mounted.
190
191The io_channel abstraction now has an optional interface,
192io_channel_write_range, which allows specific byte ranges to be
193written.
194
195The unix_io IO channel now supports write-through caching, so that
196journal creation is more efficient.
197
198Added x86 assembly language routines to support byte swapping, to
199reduce executable size.
200
201Fixed bug in the utility program subst so that it's possible to
202replace a substitution variable with a zero-length string.
203
204Fixed numbering e2fsck pass1 problem numbers; an extra zero had
205slipped into some of the problem number.
Theodore Ts'o5570a652000-08-21 01:23:39 +0000206
Theodore Ts'ob777e262000-07-27 01:39:23 +0000207E2fsprogs 1.19 (July 13, 2000)
208==============================
Theodore Ts'oab146762000-07-07 04:37:35 +0000209
210Release the resize2fs program since the timeout before it could
Theodore Ts'o006ea712000-08-21 03:39:49 +0000211be released under the GPL has finally expired.
Theodore Ts'oab146762000-07-07 04:37:35 +0000212
213Add experimental support needed for the ext2 compression patches.
214This requires compiling e2fsprogs with the --enable-compression flag
215to the configure script.
216
217Added ext3 journalling support. E2fsck will run the journal (if
218necessary) by temporarily mounting the filesystem. /sbin/fsck.ext3 is
219installed as a symlink to e2fsck. Fsck has been taught about ext3,
220and treats it the same as ext2 in terms of the progress bar logic.
221Dumpe2fs will display the superblock journaling information if the
222filesystem has a journal. The ext2 library will now permit opening an
223ext3 filesystem with the recovery flag set. This is necessary for
224on-line dump's to work correctly, but there may be issues with this
225working well since ext3 is much less agressive about syncing blocks to
226the filesystem, since they're safe on the journal.
227
228Tune2fs and e2fsck have been changed to allow the mount_count check to
229be disabled by setting max_mount_count to -1. (This was already
230supported by the kernel.)
231
232Create a symbolic link for fsck.ext3, since the e2fsprogs utilities
233are used for ext3 as well.
234
235Added internationalization support for e2fsprogs; must be enabled
236by passing --enable-nls to configure.
237
238Always use the provided ext2fs header files to insulate ourselves from
239kernel version changes. Which include files are used by e2fsprogs
240have also been cleaned up to improve portability.
241
242Limit the number of times that e2fsck updates the progress bar so that
243people who are booting using a 9600 baud console don't get swampped by
244too many updates.
245
246Improved the loop detection algorithm in e2sck's pass #3 so that it is
247much, much faster for large filesystems with a large number of
248directories.
249
250The memory footprint for e2fsck is now slightly smaller than before.
251
252E2fsck now checks if special devices have a non-zero size, and offers
253to clear the size field if it finds such an inode.
254
255E2fsck now checks if special devices have the append-only flag set,
256and offers to clear the inode.
257
258E2fsck now properly handles some "should never fail" cases during a
259bitmap copy in pass5.
260
261E2fsck now properly prints control characters in filenames as ^A .. ^Z.
262
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +0000263E2fsck now calculates the correct location of the backup superblock in
264the case of filesystem blocksizes > 1k.
265
266Fixed a bug in e2fsck's calculation of the number of inodes_per_block
267which normally didn't cause problems under most filesystem parameters,
268but could cause a valid superblock to be rejected in extreme cases.
269Other checks for validating superblock values were made more
270stringent.
271
Theodore Ts'oab146762000-07-07 04:37:35 +0000272Added non-destructive write testing to the badblocks program, courtesy
273of David Beattie. The badblocks also now has an option to input the
274current set of bad blocks, so that known bad blocks are skipped to
275speed up the badblocks test. There is also a persistent rescan
Theodore Ts'o006ea712000-08-21 03:39:49 +0000276feature which causes badblocks to run until it has completed some
277number of passes without discovering any new bad blocks.
Theodore Ts'oab146762000-07-07 04:37:35 +0000278
279Badblocks now checks to see if the device is mounted and refuses to do
280the tests involving writing to the device if it is mounted. Also,
281badblocks now allows the number of blocks to be checked to be
282defaulted to the size of the partition.
283
284Fixed a bug in fsck which didn't allow non-root users to be able to
285check filesystems if there were any LABEL= or UUID= entries in
286/etc/fstab.
287
288The Hurd doesn't support the filetype filesystem feature. The mke2fs
289program now makes sure that for the Hurd, the filestype feature is
290turned off. E2fsck will check to see if the filetype feature is
291turned on for Hurd filesystems, and offer to turn off the feature.
292
293Mke2fs now has a safety check to make sure the number of blocks do not
294exceed 32 bits even on a 64 bit platform.
295
296Really fixed a bug in fsck to allow "fsck -As" to run interactive
297fsck's. (For those people who like to do interactive fsck's in the
298/etc/rc scripts!?!)
299
300Debugfs has a few new features: the rdump command, which will do a
301recursive dump of a directory and all of its contents, and the lcd
302command which does a local chdir (much like the ftp command of the
303same name). In addition, the debugfs program and the open_filesystem
304command now takes three new options: -b and -s, which allows the
305blocksize and superblock location to be specified, and the -c option
306which is used in catastrophic situations where the block group
307descriptors are corrupt. If the -c option is specified, debugfs will
308skip trying to read in the block and inode bitmaps.
309
310Debufs's lsdel command was fixed to handle bad blocks in the inode
311table.
312
313A Y2K bug in debugfs's "ls -l" handling was fixed by switching to use
3144 digit years.
315
316General improvements in error messages
317
318 - Mke2fs prints a sane error message if the partition size is zero
319 (usually because the partition table wasn't reread by the
320 kernel due to the partition being busy), instead of "invalid
321 argument passed to ext2 library while initializing superblock".
322
323 - Fsck now prints more self-explanatory message if an invalid UUID=
324 or LABEL= specification is passed to it.
325
326UUID library changed to use the LGPL.
327
328Fixed a bug in the UUID library where very rapid calls to the
329time-based UUID generator could cause duplicate UUID's to be returned.
330This was not a problem for e2fsprogs, but it could be a problem for
331other users of the library.
332
333Make the UUID library more robust in the face of missing or an
334improper /dev/urandom or /dev/random files.
335
336Added some random portability fixes for Solaris.
337
338Some minor man page updates.
339
340Fixed a memory leak in the ss library.
341
342
343Programmer's notes:
344-------------------
345
346We now try to use lseek64 and open64 from the LFS if possible.
347
348The 3rd parameter in e2p's print_flags is now a flags word, instead of
349a boolean option.
350
351The mark and unmark bitmap functions now return the previous state of
352the bit that was being changed, which is useful for some speed
353optimizations.
354
355The following functions have been added to enhance the badblocks list
356handling in libext2fs: ext2fs_write_bb_FILE, ext2fs_read_bb_FILE2, and
357ext2fs_badblocks_equal.
358
359The ext2 header files now have the latest journalling fields to the
360superblock.
361
362The ext2fs_mkdir function in libext2fs now properly backs out of error
363conditions robustly.
364
365Cleaned up makefiles:
366 - to cleanly compile with the -j flag.
367 - so distclean removes all generated files.
368 - so in case of an error while installing header files, the make aborts.
369
370Fix test_script so that it works correctly when compiling in the
371source directory.
372
Theodore Ts'o31d1d0c2001-05-11 05:15:06 +0000373The random UUID generation routine has been made slightly better in
374the case where /dev/random doesn't exist. (Use of randomly-based UUID
375is still not recommended if /dev/random doesn't exist, however; it's
376better to use the time/ethernet MAC address UUID in this case.)
Theodore Ts'oab146762000-07-07 04:37:35 +0000377
378Clean up the build process so it's more friendly in case of missing
379directories.
380
381The ext2fs header file can now be #include'd into C++ programs.
382
383The e2p.h header file is now installed.
384
385Added workaround to a gawk 3.0.5 bug in lib/ss/mk_cmds.
386
387
388
Theodore Ts'o24ded091999-11-10 15:56:16 +0000389E2fsprogs 1.18 (November 10, 1999)
390==================================
391
392Fix a core dumping bug in e2fsck if an imagic inode is present or
393(more rarely) if the filesystem is badly corrupted enough that e2fsck
394has to restart pass 1 processing. E2fsck now closes the filesystem
395before freeing a large number of its data structures, so in the case
396of future memory faults, at least the fixed filesystem will be fully
397written out.
398
399If a filesystem doesn't support imagic inodes, and e2fsck discovers an
400imagic inode, it will offer to clear the imagic flag.
401
402E2fsck will now offer to clear the immutable flag on special files
403(device/socket/fifos) when running it in non-preen mode.
404
405E2fsck will now set the filetype when creating /lost+found, and when
406connected orphaned inodes to /lost+found.
407
408Debugfs's ncheck and icheck commands now handles the case where there
409are bad blocks in the inode table without bombing out.
410
411The badblocks list processing code has been made more efficiently for
412appending a large number of (ordered) badblocks to the badblocks list.
413
414Some minor man page updates.
415
416Fsck now allows interactive e2fsck's when using fsck -As (not a common
417mode, but some people like to do this in boot scripts for silly reasons).
418
419Programmer's notes:
420-------------------
421
422The internal e2fsck problem code for PR_2_SPLIT_DOT was fixed to meet
423with the problem code convention.
424
425The badblocks list regression test program has been updated to work
426with previously made API name changes.
427
428The ext2fs_free() command now uses the new badblocks API to avoid
429using the compatibility layer.
430
431Added new regression test cases; the run_e2fsck test script now
432supports the ability for a test case to run a prepratory command
433before running e2fsck.
434
Theodore Ts'o28e11941999-10-26 18:17:20 +0000435E2fsprogs 1.17 (October 26, 1999)
436=================================
437
438Fixed nasty typo in fsck which caused parallelized fsck's to go into an
439infinite loop.
440
441Fixed a bug in fsck where it used strncmp to compare a binary UUID,
442thus potentially causing problems if a binary UUID contained a NULL
443character.
444
445E2fsck now uses stricter checks for directory entries in pass 2:
446zero-length filenames are not allowed; neither are 8 byte long
447directory entries.
448
449The debugfs "dirty" command now clears the filesystem valid bit.
450(Previously this just set the dirty-as-in-needs-writing-out-to-disk
451bit in the in-core superblock image. The new functionality is more
452what the user expects, and is more useful.)
453
454Added a debugging hook to test parallel fsck; if the environment
455variable FSCK_FORCE_ALL_PARALLEL, then filesystems on the same drive
456will be checked in parallel when they normally would not be.
457
458Programmer's notes:
459-------------------
460
461Fixed some #ifdef's for compilation under the Hurd OS.
462
463Fixed minor W2K compatibility problems.
464
465Fixed some miscellaneous GCC warnings.
466
467
Theodore Ts'o8a31ffe1999-10-23 03:33:15 +0000468E2fsprogs 1.16 (October 22, 1999)
469=================================
470
471Fixed a race condition bug in fsck; when printing a progress bar, if
472checking multiple filesystems in parallel, it was possible for fsck to
473send e2fsck a SIGUSR1 signal before e2fsck had installed its signal
474handler, which would cause it to terminate with a signal 10.
475
476E2fsck now properly handles filesystems that have the
477INCOMPAT_FILETYPE feature turned on. It can be used to convert a
478filesystem into using or not using FILETYPE feature.
479
480E2fsck now properly handles filesystems that have the IMAGIC feature
481turned on (this is used on Linux AFS servers).
482
483The mke2fs program now creates filesystems that have the filetype and
484sparse_superblock features enabled by default, unless it is run on a
485pre-2.2 kernel. These features are not supported by a pre-2.2 kernel,
486so there is now a new flag -O which allows the user to specify with
487which features she would like to create the filesystem; "mke2fs -O
488none" will create a filesystsem compatible with 2.0 kernels.
489
490The tune2fs program now has a -O option which allows the user to set
491and reset "safe" filesystem features. Currently, the only ones which
492allows to be modified are the filetype and sparse_superblock features.
493Note setting or clearing either feature will require running e2fsck on
494the filesystem afterwards. (n.b. Clearing the sparse_superblock feature
495requires that there is enough free space on the filesystem for the
496extra superblocks which will be created by e2fsck.)
497
498Debugfs can now set and print filesystem features in the superblock
499using the "features" command. Dumpe2fs will print out the complete
500set of features when listing the superblock.
501
502Dumpe2fs has new options -f (force) and -h (header-only).
503
504Fixed a bug in e2fsck which could cause the PROGRAMMING ERROR/bonehead
505message to come up. This could happen when decrementing or
506incrementing a link count could result in an overflow.
507
508Fixed a bug in e2fsck where the block count on the lost+found
509directory would not be properly incremented when the directory was
510expanded to the point where an indirect block needed to be allocated.
511
512E2fsck now makes some additional sanity checks on the superblock to
513avoid crashing or giving a memory allocation error if some of the
514values in the superblock are unresonable (but the superblock otherwise
515looks valid).
516
517Fixed a bug in e2fsck where a very badly corrupted filesystem might
518require two passes to completely fix the filesystem. This happened if
519an inode claimed blocks that was part of the filesystem metadata
520(typically, when garbage was written into an inode table or indirect
521block, since this kind of filesystem corruption normally doesn't
522happen otherwise).
523
524On the Alpha, glibc declares st_flags although it isn't actually used;
525the configure script was improved to detect this case so that
526e2fsprogs can avoid using the non-functional stat field.
527
528The manual pages were updated to use a more consistent formatting
529style consistent with standard Unix man pages. Mke2fs's man page
530added documentation for a few previously undocumented options.
531
532Fixed minor display bugs in tune2fs and mke2fs.
533
534Programmer's notes:
535-------------------
536
537Improved portability of e2fsprogs to non-Unix systems (in particular, NT).
538
539Added features to parse and print feature strings into the e2p library.
540(e2p_feature2string, e2p_string2feature, e2p_edit_feature).
541
542ext2fs_mkdir() and ext2fs_new_dir_block() now creates directories
543whose directory entries contain proper filetype information if the
544filesystem supports it.
545
546ext2fs_link() now uses the low 3 bits of its flags parameter to pass
547the directory entry filetype information. This is used to set the
548directory entry filetype information if the filesystem supports it.
549
550Fixed a bug in ext2fs_expand_dir() where the block count in a
551directory's inode would not be properly incremented when the directory
552was expanded to the point where an indirect block needed to be
553allocated.
554
555
Theodore Ts'oa39f3ef1999-07-20 02:02:40 +0000556E2fsprogs 1.15 (July 18, 1999)
Theodore Ts'oe2a99be1999-07-19 15:48:08 +0000557==============================
Theodore Ts'o6d53db31999-07-03 20:52:21 +0000558
559Add configuration checks so that e2fsprogs will compile cleanly on
560Linux 2.3 kernels that have renamed i_version to i_generation.
561
Theodore Ts'oe2a99be1999-07-19 15:48:08 +0000562E2fsck now prints a progress/completion bar (and not just a simple
563spinner) if the -C0 option is requested or if it receives a SIGUSR1
564signal. Fsck will automatically manage the (potentially muliple)
565e2fsck processes to print completion bars if it is given a -C option,
566with the right thing happening if multiple filesystems are being
567checked in parallel.
568
569Mke2fs now has better automatic hueristics to determine the filesystem
570parameters to be used for a particular filesystem. Added a new option
571-T which allows the user to specify how the filesystem is to be used,
572which helps mke2fs do a better job selecting the filesystem parameters.
573
Theodore Ts'oa39f3ef1999-07-20 02:02:40 +0000574Mke2fs now creates revision 1 filesystems by default, and with the
575sparse superblock feature enabled. The sparse superblock feature is
Theodore Ts'o8a31ffe1999-10-23 03:33:15 +0000576not understood by Linux 2.0 kernels, so they will only allow read-only
577mounts of filesystems with this sparse superblocks.
Theodore Ts'oa39f3ef1999-07-20 02:02:40 +0000578
Theodore Ts'o6d53db31999-07-03 20:52:21 +0000579Fix bug where if /dev/null couldn't be opened (should never happen),
580e2fsck would hang in a tight loop.
581
582Make e2fsck handle the case where /lost+found isn't a directory.
583
584E2fsck now uses mallinfo if it exists to get accurate statistics about
585its memory usage.
586
587Fix bug in e2fsck where it wouldn't check to see if a disconnected
588inode had any problems before connecting it to /lost+found.
589
590Add check to e2fsck so it makes sure that total number of inodes in
591the filesystem is a sane number.
592
593Fix fencepost error when clearing an the end of the block bitmap which
594caused the last block in the bitmap not to get cleared.
595
596Cleaned up a number of messages in e2fsck:
597 * The message "Group's #'s copy of the group descriptor..."
598 was fixed so that the correct number would be displayed.
599 * Added missing space in the "disk write-protected" error messsage
600 * Cleaned up the error message printed when a non-interactive
601 e2fsck needs to abort a check because the filesystem
602 appears to be mounted.
603
604Added a new command-line utility, uuidgen, which will create and print
605a UUID.
606
607Make debugfs's icheck command more robust by checking to make sure an
608inode has valid blocks before interarting over the inode's blocks.
609
610UUID generation now uses a random-based scheme whenever possible to
611prevent potential privacy problems.
612
613Man pages for all of the UUID functions in the lirbary were added.
614
615Fixed bug in fsck so it won't coredump if a filesystem not in
616/etc/fstab is given to it.
617
618Fsck now understands the UUID=xxxx and LABEL=yyyy forms in /etc/fstab
619that most of the other mount utilities understands.
620
621Mke2fs will make a filesystem even if it appears mounted if the force
622option is given.
623
624Dumpe2fs has new command-line options which allow a filesystem expert
625to specify the superblock and blocksize when opening a filesystem.
626This is mainly useful when examining the remains of a toasted
627filesystem.
628
629The badblocks program has been updated to display correctly on disks
630with large block numbers.
631
Theodore Ts'oe2a99be1999-07-19 15:48:08 +0000632The badblocks program no longer gives spurious errors when errors
633occur on non-block boundaries, which is common if the blocksize is
634larger than 1k.
635
Theodore Ts'o6d53db31999-07-03 20:52:21 +0000636Mke2fs will sync the disk device every MKE2FS_SYNC block groups if the
637MKE2FS_SYNC environment variable is set. This is to work around a VM
638bug in the 2.0 kernel. I've heard a report that a RAID user was able
Theodore Ts'oa39f3ef1999-07-20 02:02:40 +0000639to trigger it even using a 2.2 kernel, but hopefully it will not be
640needed for most Linux 2.2 users.
Theodore Ts'o6d53db31999-07-03 20:52:21 +0000641
642Fixed miscellaneous documentation and man pages.
643
644Programmer's notes:
645-------------------
646
647Cleaned up functions such as pass1_get_blocks, pass1_read_inode which
648in e2fsck's pass1.c really should have been static.
649
650The return value of the uuid_compare() function was changed to make it
651match with the convetions used by strcmp, memcmp, and Paul Leach's
652UUID sample document.
653
654The "make depend" process has now been made more automated; it now
655automatically word-wraps the dependencies, and only replaces source
656Makefile.in if there has been a change in the dependencies. Also, a
657top-level "make depend" now recurses through all the subdirectories
658automatically.
659
660The Makefile in .../util has been changed so that subst is built using
661the native C compiler during a cross-compilation, since the subst
662program is only used during the build process. Also add an explicit
663rule to build util/subst by cd'ing to the correct directory and
664running Makefile.
665
666The man directories are defined in terms mandir, so that the configure
667script can override the location of the manual pages.
668
669The config files have been updated to recognize new machine types for
670both the i386 and alpha families.
671
672Fsck has been modified so that it will accurately create an
673fsck_instance even when the noexecute flag is set. This allows for
674accurate debugging of the fsck pass structure. Also, when the verbose
675flag is given twice, fsck will print debugging information about when
676fsck is waiting for jobs to finish.
677
678
Theodore Ts'o14790ed1999-01-12 23:32:52 +0000679E2fsprogs 1.14 (January 9, 1999)
680================================
681
682Fix the fstab parsing code so that it can handle blank lines and
683comment characters. Also, missing pass numbers need to be treated as
684zero.
685
686Fixed a bug in e2fsck where under some circumstances (when e2fsck
687needs to restart processing after fixing an egregious inconsistency)
688it would try to access already freed memory.
689
690E2fsck now prints non-printable characters in directory entries and
691pathnames using '^' and 'M-' notation.
692
693Fixed chattr so that it will ignore symbolic links when doing
694recursive descent traversals. For both chattr and lsattr, no longer
695print the version string unless the -V option is given.
696
697Allow the system administrator to directly specify the number of
698inodes desired in the filesystem, for some special cases where this is
699necessary.
700
701Fix portability problems so that e2fsprogs can be compiled under Linux
7021.2 systems and Solaris systems.
703
704Update the config.guess file with a more recent version that will
705identify newer Linux platforms.
706
707Programmer's notes
708------------------
709
710Ext2fs_read_inode and ext2fs_write_inode will now return an error if
711an inode number of zero is passed to them.
712
Theodore Ts'o556ad131998-12-19 08:10:58 +0000713E2fsprogs 1.13 (December 15, 1998)
714==================================
715
716Fixed a bug in debugfs where an error messages weren't getting printed
717when the ext2 library routines to read inodes returned errors in the
718stat, cmri and rm commands.
719
720Fixed a bug in mke2fs so that if a ridiculous inode ratio parameter is
721provided, it won't create an inode table smaller than the minimum
722number of inodes required for a proper ext2 filesystem.
723
724Fsck now parses the /etc/fstab file directly (instead of using
725getmntent()), so that it can distinguish between a missing pass number
726field and pass number field of zero. This caused problems for
727diskless workstations where all of the filesystems in /etc/fstab have
728an explicit pass number of zero, and fsck could not distinguish this
729from a /etc/fstab file with missing pass numbers.
730
731E2fsck will create a /lost+found directory if there isn't one in the
732filesystem, since it's safer to create the lost+found directory before
733it's needed.
734
735Fixed e2fsck so that it would detect bogus immutable inodes which
736happen to be sockets and FIFO files, and offer to clear them.
737
738If a filesystem has multiple reasons why it needs to be checked, and
739one of the reasons is that it is uncleanly mounted, e2fsck will print
740that as the reason why the filesystem is being checked.
741
742Cleaned up the output routines of mke2fs so that it doesn't overflow
743an 80 column display when formating really big filesystems.
744
745Added a sanity check to e2fsck to make sure that file descriptors 0,
7461, 2 are open before opening the hard disk. This avoids a problem
747where a broken program might exec e2fsck with those file descriptors
748closed, which would cause disastrous results if the kernel returns a
749file descriptor for the block device which is also used by FILE *
750stdout.
751
752Fixed up the e2fsck progress reporting functions so that the values
753reliably reach 100% at the completion of all of the e2fsck passes.
754
755Fixed minor documentation bugs in man pages and usage messages.
756
757Programmer's notes:
758-------------------
759
760Fixed a number of lint warnings in the ext2fs library and potential
761portability problems from other OS's header files that might define
762CPP macros for names like "max" and "min".
763
764ext2fs_badblocks_list_add() has been made more efficient when it needs
765to grow the bad blocks list.
766
767Fixed a bug in e2fsck which caused it to dereference a freed pointer
768just before exiting.
769
770Fixed the substition process for generating the mk_cmds and compile_et
771scripts so that they will work outside of the build tree.
772
773Add sanity check to e2fsck so that if an internal routine
774(ext2fs_get_dir_info) returns NULL, avoid dereferencing the pointer
775and causing a core dump. This should never happen, but...
776
Theodore Ts'oa5696711998-07-09 05:38:07 +0000777E2fsprogs 1.12 (July 9, 1998)
Theodore Ts'o21d53851998-02-21 03:14:50 +0000778==================================
779
780E2fsprogs now works with glibc (at least with the version shipped wtih
781RedHat 5.0). The ext2fs_llseek() function should now work even with
782i386 ELF shared libraries and if llseek() is not present. We also
783explicitly do a configure test to see if (a) llseek is in libc, and
784(b) if llseek is declared in the system header files. (See standard
785complaints about libc developers don't understand the concept of
786compatibility with previous versions of libc.)
787
Theodore Ts'oc9833a61998-07-05 19:37:53 +0000788The ext2fs library now writes out the block group number in each of
789the superblock copies. This makes it easier to automatically
790determine the starting block group of the filesystem when the block
791group information is trashed.
792
793Added support for the EXT2_FEATURE_INCOMPAT_FILETYPE feature,
Theodore Ts'o101c84f1998-03-24 16:27:11 +0000794which means that e2fsprogs will ignore the high 8 bits of the
795directory entry's name_len field, so that it can be used for other
796purposes.
797
798Added support for the EXT2_FEATURE_RO_COMPAT_LARGE_FILE feature.
799E2fsprogs will now support filesystems with 64-bit sized files.
800
801Added support for the EXT2_FEATURE_COMPAT_DIR_PREALLOC feature.
802
Theodore Ts'o21d53851998-02-21 03:14:50 +0000803Added new program "e2label", contributed by Andries Brouwer. E2label
804provides an easy-to-use interface to modify the filesystem label.
805
Theodore Ts'oa4b2d3c1998-04-03 16:12:25 +0000806Fixed bug so that lsattr -v works instead of producing a core dump.
807
Theodore Ts'o21d53851998-02-21 03:14:50 +0000808Fixed a minor bug in mke2fs so that all groups with bad superblock
809backup blocks are printed (not just the first one).
Theodore Ts'oa4b2d3c1998-04-03 16:12:25 +0000810
811Mke2fs will check the size of the device, and if the user specifies a
812filesystem size larger than the apparent size of the device it will
813print a warning message and ask if the user wants to proceed.
814
Theodore Ts'oc9833a61998-07-05 19:37:53 +0000815E2fsck has a new option -C, which sends completion information to the
816specified file descriptor. For the most part, this is intended for
817programs to use, although -C 0 will print a spinning character to the
818stdout device, which may be useful for users who want to see something
819happening while e2fsck goes about its business.
820
Theodore Ts'o21d53851998-02-21 03:14:50 +0000821Fixed a bug in e2fsck which could cause a core dump when it needs to
822expand the /lost+found directory, and sometimes the bitmaps haven't
823been merged in. Also fixed a related bug where ext2fs_write_dir_block
824was used to write out a non-directory block. (Which would be bad on a
825non-Intel platform with byte swapping going on.)
826
827Fixed bug in e2fsck where it would print a "programming error" message
828instead of correctly identifying where a bad block was in used when
829the bad block was in a non-primary superblock or block group
830descriptor. Also fixed a related bug when sparse superblocks are in
831use and there is a bad block where a superblock or block group
832descriptor would have been in a group that doesn't include a
833superblock.
834
835Fixed a bug in e2fsck (really in libext2fs's dblist function) where if
836the block group descriptor table is corrupt, it was possible to try to
837allocate a huge array, fail, and then abort e2fsck.
838ext2fs_get_num_dirs() now sanity checks the block group descriptor,
839and subsitutes reasonable values if the descriptors are obviously bogus.
840
841If e2fsck finds a device file which has the immutable flag set and the
842i_blocks beyond the normal device number are non-zero, e2fsck will
843offer to remove it, since it's probably caused by garbage in the inode
844table.
845
846When opening a filesystem, e2fsck specially checks for the EROFS error
847code, and prints a specific error message to the user which is more
848user friendly.
849
850If the filesystem revision is too high, change the e2fsck to print
851that this is either because e2fsck is out of date, or because the
852superblock is corrupt.
853
854E2fsck now checks for directories that have duplicate '.' and '..'
855entries, and fixes this corruption.
856
857E2fsck no longer forces a sync of the filesystem (with attendant sleep
858calls) at all times. The ext2fs_flush() function now performs a sync
859only if it needed to write data blocks to disk.
860
861Fixed a minor bug in e2fsck's pass1b's file cloning function, where
862certain errors would not be properly reported.
863
864Updated and expanded a few points in the man pages which users
865complained wheren't explicit enough.
866
867Added special case byte-swapping code if compiling on the PowerPC, to
868accomodate the strange big-endian variant of the ext2 filesystem that
869was previously used on the PowerPC port.
870
871
872Programmer's notes:
873-------------------
874
875Removed C++ keywords from the ext2fs libraries so that it could be
876compiled with C++.
877
878E2fsck's internal organization has now been massively reorganized so
879that pass*.c don't have any printf statements. Instead, all problems
880are reported through the fix_problem() abstraction interface. E2fsck
881has also been revamped so that it can be called as a library from a
882application.
883
884Added new fileio primitives in libext2fs for reading and writing
885files on an unmounted ext2 filesystem. This interface is now used by
886debugfs.
887
888Added a new libext2fs function for mapping logical block numbers of
889a file to a physical block number.
890
891Added a new libext2fs function, ext2fs_alloc_block(), which allocates
892a block, zeros it, and updates the filesystem accounting records
893appropriately.
894
895Added a new libext2fs function, ext2fs_set_bitmap_padding(), which
896sets the padding of the bitmap to be all one's. Used by e2fsck pass 5.
897
898The libext2fs functions now use a set of memory allocation wrapper
899functions: ext2fs_get_mem, ext2fs_free_mem, and ext2fs_resize_mem,
900instead of malloc, free, and resize. This makes it easier for us to
901be ported to strange environments where malloc, et. al. aren't
902necessarily available.
903
904Change the libext2fs fucntion to return ext2-specific error codes
905(EXT2_DIR_EXISTS and EXT2_DB_NOT_FOUND, for example) instead of using
906and depending on the existence of system error codes (such as EEXIST
907and ENOENT).
908
909Renamed io.h to ext2_io.h to avoid collision with other OS's header
910files.
911
912Add protection against ext2_io.h and ext2fs.h being included multiple
913times.
914
915The types used for memory lengths, etc. have been made more portable.
916In generla, the code has been made 16-bit safe. Added Mark
917Habersack's contributed DOS disk i/o routines.
918
919Miscellaneous portability fixes, including not depending on char's
920being signed.
921
922The io_channel structure has a new element, app_data, which is
923initialized by the ext2fs routines to contain a copy of the filesystem
924handle.
925
926ext2fs_check_directory()'s callback function may now return the error
927EXT2_ET_CALLBACK_NOTHANDLED if it wishes ext2fs_check_directory() to
928really do the checking, despite the presence of the callback function.
929
930
Theodore Ts'obc210071997-06-17 05:41:36 +0000931E2fsprosg 1.11 (June 17, 1997)
932==============================
933
934Fixed e2fsck to detect (previously ignored) conflicts between the
935superblock or block group descriptors and block bitmaps, inode
936bitmaps, and inode tables.
937
938Fixed bug in e2fsck so that when the message printed out when a block
939or inode bitmap conflicts with other data, it has the correct group
940number.
941
942Fixed bug in e2fsck and mke2fs where the blocksize wasn't being passed
943to badblocks. This meant that not all of the filesystem was being
944tested for bad blocks!
945
946Fixed an array boundary overrun case which cropped up in
947ext2fs_badblocks_list_test when a user tried running "mke2fs -c
948-b 4096".
949
950Adjusted the number of columns printed by mke2fs when displaying the
951superblock backups to avoid running over 80 columns when making a
Theodore Ts'o21d53851998-02-21 03:14:50 +0000952really big filesystem.
Theodore Ts'obc210071997-06-17 05:41:36 +0000953
954Fixed up the man pages for e2fsck, debugfs, badblocks, chattr,
955dumpe2fs, fsck, mke2fs, and tune2fs (typos and other minor grammar
956fixes), thanks to some suggestions from Bill Hawes (whawes@star.net).
957
958Programmer's notes:
959-------------------
960
961Fixed install rule in lib/ss so that ss_err.h is actually getting
962installed.
963
964Fixed bug in ext2fs_copy_bitmap; the destination bitmap wasn't getting
965bassed back to the caller.
966
967Fixed bug in ext2fs_inode_scan_goto_blockgroup; it had not been
968setting the current inode number (which meant this function wasn't
969working at all).
970
971Fixed bug in ext2fs_resize_generic_bitmap; it had not be zeroing all
972blocks in the bitmap when increasing the size of the bitmap.
973
974Changed the initial number of blocks allocated by ext2fs_init_dblist()
975to be more realistic.
976
977Added a new function ext2fs_allocate_group_table, which sets up the
978group descriptor information (and allocates inode and block bitmaps,
979and inode tables for a particular group). The function was created by
980factoring out code form ext2fs_allocate_tables().
981
982Added a new function ext2fs_move_blocks which takes a bitmap of the
983blocks to be moved, and moves them to another location on the
984boardboard.
985
986Make the unix_io channel's io_channel_flush implementation calls sync()
987to to flush the kernel buffers to disk.
988
989Added a new function ext2fs_dblist_count returns the number of
990directory blocks in dblist.
991
992
Theodore Ts'oae851481997-04-29 18:13:24 +0000993E2fsprogs 1.10 (April 24, 1997)
994===============================
995
996Mke2fs once again defaults to creating revision #0 filesystems, since
997people were complaining about breaking compatibility with 1.2 kernels.
998Warning messages were added to the mke2fs and tune2fs man pages that
999the sparse superblock option isn't supported by most kernels yet (1.2
1000and 2.0 both don't support parse superblocks.)
1001
1002Added new flag to mke2fs, -R <raid options>, which allows the user to
1003tell mke2fs about the RAID configuration of the filesystem. Currently
1004the only supported raid option is "stride" which specifies the width
1005of the RAID stripe.
1006
1007Fixed bug in e2fsck where pass1b would bomb out if there were any
1008blocks marked bad in the inode table.
1009
1010Fixed rare bug in mke2fs where if the user had a very unlucky number
1011of blocks in a filesystem (probability less than .002) the resulting
1012filesystem would be corrupt in the last block group.
1013
1014Fixed bug where if e2fsck tried to allocate a block to fix a
1015filesystem corruption problem and the filesystem had no free blocks,
1016ext2fs_new_block() would loop forever.
1017
1018The configure script now checks explicitly to see if "-static" works,
1019since that can't be assumed to be true --- RedHat doesn't install
1020libc-static by default.
1021
1022Fixed bug in libext2's block iterator functions where under some
1023cirmcustances, file with holes would cause the bcount parameter to the
1024callback function to be incorrect. This bug didn't affect any of
1025e2fsprogs programs, but it was discovered by Paul Mackerras, the
1026author of the PPC boot loader.
1027
1028Removed use of static variables to store the inode cache in libext2fs.
1029This caused problems if more than one filesystem was accessed via
1030libext2fs (static variables in libraries are generally a bad idea).
1031Again, this didn't affect e2fsprogs programs, but it was discovered by
1032Paul Mackerras.
1033
1034Fixed minor bugs and version code drift to assure that e2fsprogs 1.10
1035will compile cleanly with 1.2.13 kernels (even with a.out shared
1036libraries!)
1037
1038Programmer's notes:
1039-------------------
1040
1041Added new functions to duplicate an ext2 filesystem handle, and its
1042associated substructure. New functions: ext2fs_dup_handle(),
1043ext2fs_copy_dblist(), ext2fs_badblocks_copy(), ext2fs_copy_bitmap().
1044Other structures, such as the io_channel and the inode_cache, now have
1045a ref count so that they only get freed when they are no longer used
1046by any filesystem handle. (These functions were added as part of the
1047development effort for an ext2 resizer).
1048
Theodore Ts'o2ecc6fe1997-04-29 17:57:00 +00001049E2fsprogs 1.09 (April 14, 1997)
1050===============================
1051
1052Fixed bug in mke2fs (really in lib/ext2fs/initialize.c) which was
1053accidentally introduced in the 1.08 release. The overhead calculation
1054was accidentally removed, which caused ext2fs_initialize() to not
1055notice when the filesystem size needed to be adjusted down because
1056there wasn't enough space in the last block group.
1057
1058Fixed bug in version parsing library routine; it was always parsing
1059the library version string, instead of using the passed-in string.
1060
1061Clarified chattr man page.
1062
Theodore Ts'o24757fa1997-04-29 17:39:27 +00001063E2fsprogs 1.08 (April 10, 1997)
1064===============================
1065
1066E2fsck 1.07 was very slow when checking very large filesystems with a
1067lot of files that had hard links (i.e., news spools). This was fixed
1068by seriously revamping the icount abstraction. Added a formal test
1069suite for the icount abstraction.
1070
1071Debugfs now has a "-l" option to the "ls" command, which lists the
1072inode number, permissions, owner, group, size, and name of the files
1073in the directory.
1074
1075Fix a bug in e2fsck where when a directory had its blocks moved to
1076another location during the pass 1b processing, the directory block
1077list wasn't updated, so pass 2 wouldn't check (and correct) the
1078correct directory block.
1079
1080E2fsck will now treat inodes which contain blocks which are claimed by
1081the filesystem metadata by treating them as multiply claimed blocks.
1082This way, the data in those blocks can be copied to a new block during
1083the pass 1b--1d processing.
1084
1085E2fsck will attempt to determine the correct superblock number and
1086display it in the diagnostic and warning messages if possible.
1087
1088Add support for a new (incompatible) feature, "sparse_super". This
1089feature reduces the number of blocks which contain copies of backup
1090superblocks and block group descriptors. (It is only an incompatible
1091feature because of a bug in ext2_free_blocks.) mke2fs and tune2fs now
1092support a new -s option; e2fsck will recognize filesystems built with
1093this feature turned on.
1094
1095E2fsck now checks the library to make sure is the correct version,
1096using new library functions. (This helps to diagnose incorrectly
1097installed e2fsprogs distributions.)
1098
1099Dumpe2fs now prints more information; its now prints the the
1100filesystem revision number, the filesystem sparse_super feature (if
1101present), the block ranges for each block group, and the offset from
1102the beginning of the block group.
1103
1104Mke2fs now distributes the inode and block bitmap blok so that the
1105won't be concentrated in one or two disks in RAID/striping setups.
1106Also, if the user chooses a 2k or 4k block group, mke2fs will try to
1107choose the largest blocks per group that be chosen. (For 2k blocks,
1108you can have up to 16384 blocks/group; for 4k blocks, you can have up
1109to 32768 blocks/group.) Previously mke2fs would not allow
1110specification of more than 8192 blocks per group, even if you were
1111using a 2k or 4k block group.
1112
1113Programmer's notes:
1114-------------------
1115
1116Added a new function ext2fs_create_icount2() which takes a "hint"
1117argument. This hint argument presets the icount array with the list
1118of inodes which actually need to be in the icount array. This really
1119helps to speed up e2fsck.
1120
1121Added a new function ext2fs_icount_validate() which checks the rep
1122invariant for the icount structure. This is used mostly for testing.
1123
1124The error mesasage given when a bad inode number is passed to
1125test_generic_bitmap to reflect EXT2FS_TEST_ERROR (instead of
1126EXT2FS_UNMARK_ERROR).
1127
1128Added a new function ext2fs_set_dir_block which sets the block of a
1129dblist entry, given the directory inode and blockcnt.
1130
1131Added a new function ext2fs_get_library_version() which returns the
1132current library version, and ext2fs_parse_version_string() which
1133returns a version number based on a e2fsprogs version string.
1134
1135The icount functions will return EINVAL if the passed in inode number
1136is out of bounds.
1137
Theodore Ts'o21c84b71997-04-29 16:15:03 +00001138E2fsprogs 1.07 (March 9, 1997)
1139==============================
1140
1141E2fsck is now uses much less memory when checking really large
1142filesystems (or rather, filesystems with a large number of inodes).
1143Previously a filesystem with 1 million inodes required 4 megabytes of
1144memory to store inode count statistics; that storage requirement has
1145now been reduced to roughly half a megabyte.
1146
1147E2fsck can now properly deal with bad blocks appearing inside the
1148inode table. Instead of trying to relocate the inode table (which
1149often failed because there wasn't enough space), the inodes in the bad
1150block are marked as in use.
1151
1152E2fsck will automatically try to use the backup superblocks if the
1153primary superblocks have a bad magic number or have missing meta-data
1154blocks (or meta-data blocks which are out of range).
1155
1156E2fsck's pass 3 has been made more efficient; most noticeable on
1157filesystems with a very large number of directories.
1158
1159Completely revamped e2fsck's system of printing problem reports. It
1160is now table driven, to make them more easily customizeable and
1161extendable. Error messages which can be printed out during preen mode
1162are now one line long.
1163
1164Fixed e2fsck's filesystem swapping code so that it won't try to swap
1165fast symbolic links or deleted files.
1166
1167Fixed e2fsck core dumping when fixing a filesystem which has no
1168directories (not even a root directory).
1169
1170Added a check to e2fsck to make sure that the length of every
1171directory entry is a multiple of 4 (since the kernel complains if it
1172isn't).
1173
1174Added a check to e2fsck to make sure that a directory entry isn't a
1175link to the root directory, since that isn't allowed.
1176
1177Added a check to e2fsk to now make sure the '.' and '..' directory
1178entries are null terminated, since the 2.0 kernel requires it.
1179
1180Added check to write_bitmaps() to make sure the superblock doesn't get
1181trashed if the inode or block bitmap is marked as being block zero.
1182
1183Added checking of the new feature set fields in the superblock, to
1184avoid dealing with new filesystem features that this package wasn't
1185set up to handle.
1186
1187Fixed a fencepost error in ext2fs_new_block() which would occasionally
1188try to allocate a block beyond the end of a filesystem.
1189
1190When the UUID library picks a random IEEE 802 address (because it
1191can't find one from a network card), it sets the multicast bit, to
1192avoid conflicting with a legitimate IEEE 802 address.
1193
1194Mke2fs now sets the root directory's owner to be the real uid of the
1195user running mke2fs. If the real uid is non-zero, it also sets
1196the group ownership of the root directory to be the real group-id of
1197the user running mke2fs.
1198
1199Mke2fs now has more intelligent error checking when it is given a
1200non-existent device.
1201
1202When badblocks is given the -vv option, it now updates the block that
1203it is currently testing on every block.
1204
1205Fixed a bug in fsck where it wouldn't modify the PATH envirnoment
1206currently correctly if PATH wasn't already set.
1207
1208Shared libraries now built with dependencies. This allows the shared
1209library files to be used with dlopen(); it also makes the transition
1210to libc 6 easier, since ld.so can tell which libc a particular shared
1211library expects to use.
1212
1213Programmer's notes:
1214-------------------
1215
1216Added new abstraction (defined in dblist.c) for maintaining a list of
1217blocks which belongs to directories. This is used in e2fsck and other
1218programs which need to iterate over all directories.
1219
1220Added new functions which test to see if a contiguous range of blocks
1221(or inodes) are available. (ext2fs_*_bitmap_range).
1222
1223Added new function (ext2_inode_has_valid_blocks) which returns true if
1224an inode has valid blocks. (moved from e2fsck code).
1225
1226Added new function (ext2fs_allocate_tables) which allocates the
1227meta-data blocks as part of initializing a filesystem. (moved from
1228mke2fs code).
1229
1230Added a new I/O manager for testing purposes. It will either allow a
1231program to intercept I/O requests, or print debugging messages to
1232trace the activity of a program using the I/O manager.
1233
1234The badblocks_list functions now store the bad blocks in a sorted
1235order, and use a binary search to speed up badblocks_list_test.
1236
1237The inode scan function ext2fs_get_next_inode() may now return a soft
1238error returns: MISSING_INODE_TABLE and BAD_BLOCK_IN_INODE_TABLE in
1239those cases where part of an inode table is missing or there is a bad
1240block in the inode table.
1241
1242Added a new function (ext2fs_block_iterate2) which adds new arguments to
1243the callback function to return a pointer (block and offset) to the
1244reference of the block.
1245
1246Added new function (ext2fs_inode_scan_goto_blockgroup) which allows an
1247application to jump to a particular block group while doing an inode
1248scan.
1249
1250The badblocks list functions were renamed from badblocks_* to
1251ext2fs_badblocks_*. Backwards compatibility functions are available
1252for now, but programs should be modified to use the new interface.
1253
1254Some of the library functions were reorganized into separate files to
1255reduce the size of some programs which statically link against the
1256ext2 library.
1257
1258Put in some miscellaneous fixes for the Alpha platform.
1259
Theodore Ts'o5c576471997-04-29 15:29:49 +00001260
1261E2fsprogs 1.06 (October 7, 1996)
1262================================
1263
1264Fixed serious bug in e2fsck: if the block descriptors are bad, don't
1265smash the backup copies in ext2fs_close(). (The problem was that when
1266e2fsck -p discovered the problem, while it was closing the filesystem
1267and exiting, it was also blowing away the backup superblocks on the
1268disk, which was less than friendly.) We now make it the case that we
1269only write out the backup superblock and the back block descriptors if
1270the filesystem is completely free from problems.
1271
1272Fixed a bug in block_interate in the lib/ext2fs library which caused
1273e2fsck to fail on GNU Hurd-created filesystems.
1274
1275Add support for Linux/FT's bootloader, which actually uses
1276EXT2_BOOT_LOADER, and sets its mode bits which caused e2fsck to want
1277to clear the inode.
1278
1279Add support for the "A" (no atime update) attribute. (Note: this
1280attribute is not yet in production kernels.)
1281
1282The test suite is not automatically run when doing a "make all" from
1283the top level directory. Users should manually run "make check" if
1284they wish to run the test suite.
1285
1286Upon a preenhalt(), make the printed message more explicit that
1287running e2fsck "MANAULLY" means without the -p or -a options.
1288
1289In e2fsck, if a disconnected inode is zero-length, offer to clear it
1290instead of offering to connect it to lost+found.
1291
1292In e2fsck, if a filesystem was just unmounted uncleanly, and needs
1293e2fsck to be run over it, change e2fsck to explicitly display this
1294fact.
1295
1296For dumpe2fs and e2fsck, cause the -V option to print out which
1297version of the ext2fs library is actually getting used. (This will
1298help detect mismatches of using a 1.06 utility with a 1.05 library,
1299etc.)
1300
1301Programmers' notes:
1302-------------------
1303
1304EXT2_SWAP_BYTES was changed to EXT2_FLAG_SWAP_BYTES, which better fits
1305the naming convention.
1306
1307In ext2fs_initialize(), make sure the description for the inode bitmap
1308is correctly initialize.
1309
1310Fixed minor type typo in ext2fs_allocate_generic_bitmap();
1311
Theodore Ts'ofc6d9d51997-04-29 14:51:31 +00001312E2fsprogs 1.05 (September 7, 1996)
1313==================================
1314
1315Add support for new fields in the ext2 superblock --- volume name,
1316volume UUID, and last mounted field. Dumpe2fs displays these fields,
1317tune2fs and mke2fs allows you to set them. E2fsck will automatically
1318generate a UUID for those volumes that don't have them.
1319
1320Put in support for e2fsck to recognize HURD specific ext2 features ---
1321most notably, the translator block. The e2fsprogs tools will now use
1322the creator_os field in the superblock to correctly handle different
1323OS-specific variants of the ext2 filesystem.
1324
1325E2fsck now fixes inodes which have a the deletion time set, but which
1326have a non-zero i_link_count field by offering to clear the deletion
1327time. Previously e2fsck assumed that the inode was deleted (per 0.3c
1328ext2 kernel behavior) and offered to unlink the file.
1329
1330If e2fsck sets the clean bit, but nothing else, set the exit code
1331FSCK_NONDESTRUCT. After all, e2fsck did fix a filesystem error --- it
1332set the filesystem valid bit when it was previously cleared. :-) This
1333was needed to make the HURD fsck driver happy.
1334
1335If the user refuses to attach an unattached inode, e2fsck will no
1336longer set the inode's link count. Otherwise, the inode would end up
1337getting marked as unused, which might cause loss of data later.
1338
1339Make the message issued by e2fsck when the superblock is corrupt less
1340confusing for users. It now mentions that another reason for the
1341"corrupt superblock" message might be that the partition might not be
1342an ext2 filesystem at all (it might swap, msdos filesystem, ufs, etc.)
1343
1344Make the libext2 library more robuest so that e2fsck won't coredump on
1345an illegal superblock where the blocksize is zero. (f_crashdisk is
1346the test case).
1347
1348By default, create filesystems where the default checkinterval is 6
1349months (180 days). Linux servers can be robust enough that 20 reboots
1350can be a long, long time.
1351
1352Added configure flag --enable-old-bitops, which forces the bitops to
1353use the old (native) bitmask operations. By default on the sparc
1354platform, the standard ext2 bit ordering is now used.
1355
1356Added a new feature to e2fsck to byte-swap filesystems; this can be
1357used to convert old m68k filesystems to use the standard byte-order
1358storage for the superblock, inodes, and directory blocks. This
1359function is invoked by using the '-s' option to e2fsck.
1360
1361Debugfs's "dump" command has been enhanced so that it writes out the
1362exact size of the file so that the nulls at the end of the file are
1363eliminated. The command also accept a new "-p" option which will
1364attempt preserve to preserve the ownernship, permissions, and
1365file modification/access times.
1366
1367Debugfs has two new options, -f and -R. The -R option allows the user
1368to execute a single debugfs command from the command line. The -f
1369option allows the user to specify a "command file" containing debugfs
1370commands which will get executed.
1371
1372Dumpe2fs now pretty prints the check interval, instead of just
1373printing the check interval as a number of seconds.
1374
1375Fix bugs in debugfs: the params command when no filesystem is opened
1376no longer causes a core dump. It is now possible to unlink a file
1377when a pathame containing a '/' is specified.
1378
1379Tune2fs has a new -C option which sets the number of times the
1380filesystem has been mounted.
1381
1382Fix the chattr '-v' option so that it actually works. Chattr was
1383being buggy about the -v option parsing.
1384
1385Programmers' notes:
1386-------------------
1387
1388The directory lib/uuid contains a set of library routines to generate
1389DCE compatible UUIDs.
1390
1391Extended ext2fs_namei() to handle symbolic links. Added new function
1392ext2fs_nami_follow() which will follow last symbolic link in the case
1393where the pathname points to a sym link.
1394
1395The ext2fs_block_iterate function will now return the HURD translator
1396block, if present. The new flag BLOCK_FLAG_DATA_ONLY will cause the
1397iterator to return data blocks only. The ext2fs.h file now defines
1398constants BLOCK_COUNT_IND, BLOCK_COUNT_DIND, BLOCK_COUNT_TIND, and
1399BLOCK_COUNT_TRANSLATOR, which are the magic values passed in the block
1400count field of the iterator callback function.
1401
1402The test script driver now takes an optional second argument, which is
1403the test case to be run. This allows you to run a test case without
1404needing to run the entire test suite.
1405
1406On Linux ELF systems, install the .so files in the correct places
1407(/usr/lib). The .so files must be stored in the same directory as the
1408.a files.
1409
1410Fixed miscellaneous HURD compilation issues with header file being
1411included in the right order.
1412
1413Fixed debugfs so that it resets optind to zero, not one, since setting
1414optind to zero is more correct.
1415
1416
Theodore Ts'oa4d09611997-04-29 14:28:00 +00001417E2fsprogs 1.04 (May 16, 1996)
1418=============================
1419
1420First "official" (1.03 was a limited release only) to support building
1421e2fsprogs under Linux 2.0 kernels (as well as late model 1.3 and 1.99
1422kernels).
1423
1424This package includes a RPM specs file, that it can be built using the
1425RedHat Package Manager.
1426
1427E2fsck now prints a hint that if there are lots of incorrectly located
1428inode bitmaps, block bitmaps, and inode table blocks, the user might
1429want to try using e2fsck -b 8193 first, to see if that fares any
1430better.
1431
1432For ext2 filesystem written with the hurd, debugfs will now print out
1433the translator field when printing an inode structure.
1434
1435Lots of miscellaneous linking/installation cleanups:
1436
1437 Libraries are now linked using a relative pathname, instead of
1438 relying on -L working correct. It doesn't, in many cases, including
1439 current versions of GNU ld. This guarantees that the build tree is
1440 linking with the right libraries, instead of the ones installed in
1441 /usr/lib.
1442
1443 Header files, man pages, and the et/ss shell scripts are now
1444 generated using a custom substitution script, instead of relying on
1445 the configure script. This prevents needless recompilation of
1446 files; in addition, the custom substitution script is much faster.
1447
1448 e2fsck may now be linked dynamically, by using the
1449 --enable-dynamic-e2fsck flag to configure. This is not recommended,
1450 since it increases e2fsck's dependence on other files, but some
1451 people need to save disk space, and other critical programs on their
1452 systems were being linked dynamically anyway.
1453
1454 Programs such as fsck which didn't need to be linked against
1455 libext2fs (or mke2fs which didn't need to be linked against libe2p)
1456 only link against libraries they actually need. Otherwise, those
1457 programs would require the presense of libraries that otherwise
1458 could be removed from a rescuse diskette.
1459
1460 The ss include files are now installed correctly so they can
1461 actually be used by another package.
1462
1463 If the profiling libraries are built, they are now installed on a
1464 "make install-libs".
1465
1466
Theodore Ts'o7f88b041997-04-26 14:48:50 +00001467E2fsprogs 1.03 (March 27, 1996)
1468===============================
1469
1470Change the m68k bit numbering for bitmasks to match the bit numbering
1471used by all other ext2 implementations. (This change was requested by
1472the m68k kernel development team.)
1473
1474Support (in-development) filesystem format revision which supports
1475(among other things) dynamically sized inodes.
1476
1477Fixed a bug in the ext2 library so that an intelligent error is
1478returned if mke2fs is run with a ridiculously small number of blocks
1479for a partition.
1480
1481Fixed a bug in the ext2 library which required that the device be
1482openable in read/write mode in order to determine its size. This
1483caused e2fsck -n to require read/write access when it was not
1484previously necessary.
1485
1486Fixed a bug in e2fsck which casued it to occasionally fail the test
1487suite depending on which version of the floating point library it was
1488using.
1489
1490Fixed a bug in e2fsck so that it now halts with a fatal error when
1491certain superblock consistency checks fail. Previously it continued
1492running e2fsck, with some potential confusing/damaging consequences.
1493
1494Added new flag to fsck which allows the root to be checked in parallel
1495with other filesytems. This is not the safest thing in the world to
1496do, but some system administrators really wanted it.
1497
Theodore Ts'ofc6d9d51997-04-29 14:51:31 +00001498Fixed -Wall flames in lib/ss.
1499
Theodore Ts'o74becf31997-04-26 14:37:06 +00001500
1501E2fsprogs 1.02 (January 16, 1996)
1502=================================
1503
1504Fix to allow e2fsprogs to be compiled on recent 1.3 (pl45+) kernels.
1505
1506Change e2fsck to print statistics of how many non-contiguous files are
1507on the system. Note that a file which is larger than 8k blocks, it is
1508guaranteed to be non-contiguous.
1509
1510In mke2fs, print a warning message if a user tries to format a whole
1511disk (/dev/hda versus /dev/hda1). If a user really wants to format a
1512whole disk, the -F (force) option forces mke2fs to format a whole disk
1513as a filesytem.
1514
1515Fix a bug in fsck where in some cases it might start checking
1516partitions in the next pass before it finishes checking partitions in
1517the current pass. This still won't cause two partitions on the same
1518disk will be checked, so it's rarely a problem in real life.
1519
1520Patch lsattr so that it won't hang when checking a named pipe.
1521
1522Minor compilation fixes:
1523 * Fix the order of libraries that were linked in debugfs.
1524 * Allow the sources to be compiled with -ansi turned on.