Added some options for randomizing GUIDs and setting GUIDs via sgdisk
diff --git a/sgdisk.8 b/sgdisk.8
index 1685bf8..6a3a0b1 100644
--- a/sgdisk.8
+++ b/sgdisk.8
@@ -166,7 +166,7 @@
will reflect GPT fdisk's first\-pass interpretation of the GPT.
.TP
-.B \-c, \-\-change=partnum:name
+.B \-c, \-\-change\-name=partnum:name
Change the GPT name of a partition. This name is encoded as a UTF\-16
string, but \fBsgdisk\fR
supports only ASCII characters as names. For the most part, Linux ignores
@@ -177,6 +177,17 @@
partition is distinct from the filesystem name, which is encoded in the
filesystem's data structures.
+.TP
+.B \-C, \-\-recompute-chs
+Recompute CHS values in protective or hybrid MBR. This option can sometimes
+help if a disk utility, OS, or BIOS doesn't like the CHS values used by the
+partitions in the protective or hybrid MBR. In particular, the GPT
+specification requires a CHS value of 0xFFFFFF for over-8GiB partitions,
+but this value is technically illegal by the usual standards. Some BIOSes
+hang if they encounter this value. This option will recompute a more normal
+CHS value -- 0xFEFFFF for over-8GiB partitions, enabling these BIOSes to
+boot.
+
.TP
.B \-d, \-\-delete=partnum
Delete a partition. This action deletes the entry from the partition table
@@ -218,6 +229,12 @@
this option is required on MBR or BSD disklabel disks if you intend to save your
changes, in order to prevent accidentally damaging such disks.
+.TP
+.B \-G, \-\-randomize\-guids
+Randomize the disk's GUID and all partitions' unique GUIDs (but not their
+partition type code GUIDs). This function may be used after cloning a disk
+in order to render all GUIDs once again unique.
+
.TP
.B \-h, \-\-hybrid
Create a hybrid MBR. This option takes from one to three partition numbers,
@@ -286,6 +303,15 @@
which is the start of the largest available block for the start sector and
the end of the same block for the end sector.
+.TP
+.B \-N, \-\-largest\-new
+Create a new partition that fills the largest available block of space on
+the disk. Note that if used on a completely blank disk, this is likely to
+result in a sector-moved warning, since the first available sector
+(normally 34) doesn't fall on a 2048-sector boundary (the default for
+alignment). You can use the \fI\-a\fR (\fI\-\-set\-alignment\fR) option to
+adjust the alignment, if desired.
+
.TP
.B \-o, \-\-clear
Clear out all partition data. This includes GPT header data,
@@ -337,6 +363,14 @@
probability of \fBsgdisk\fR being unable to convert a BSD disklabel is
high compared to the likelihood of problems with an MBR conversion.
+.TP
+.B \-u, \-\-partition-guid=partnum:guid
+Set the partition unique GUID for an individual partition.
+
+.TP
+.B \-U, \-\-disk-guid=guid
+Set the GUID for the disk.
+
.TP
.B \-\-usage
Print a brief summary of available options.