tree d1425ac58a36cdb4d8ac1046719b4eda4f6748d3
parent 7bd897cfce1eb373892d35d7f73201b0f9b221c4
author Richard <richard@aaazen.com> 1495394820 -0700
committer Jens Axboe <axboe@fb.com> 1495552567 -0600

partitions/msdos: FreeBSD UFS2 file systems are not recognized

The code in block/partitions/msdos.c recognizes FreeBSD, OpenBSD
and NetBSD partitions and does a reasonable job picking out OpenBSD
and NetBSD UFS subpartitions.

But for FreeBSD the subpartitions are always "bad".

    Kernel: <bsd:bad subpartition - ignored

Though all 3 of these BSD systems use UFS as a file system, only
FreeBSD uses relative start addresses in the subpartition
declarations.

The following patch fixes this for FreeBSD partitions and leaves
the code for OpenBSD and NetBSD intact:

Signed-off-by: Richard Narron <comet.berkeley@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>