Date: Wed, 3 Mar 2010 22:33:14 -0600 From: Peter Steele <psteele@maxiscale.com> To: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: fsck cannot determine fstype automatically Message-ID: <7B9397B189EB6E46A5EE7B4C8A4BB7CB3A1A5C31@MBX03.exg5.exghost.com>
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We use gpart to create GPT style partitions. For example:
# gpart show ad4
=3D> 34 490234685 ad4 GPT (234G)
34 16 1 freebsd-boot (8.0K)
50 67108864 2 freebsd-swap (32G)
67108914 67108864 3 freebsd-swap (32G)
134217778 10485760 4 freebsd-ufs (5.0G)
144703538 25165824 5 freebsd-ufs (12G)
169869362 11719060 6 freebsd (5.6G)
181588422 200620089 7 freebsd-ufs (96G)
382208511 108026208 8 freebsd-ufs (52G)
In this case, partitions 3, 4, and 5 are mirrored with equivalent partition=
s on another drive and these appear to be working fine. Partitions 7 and 8 =
are strictly data partitions and not mirrored. When I try to run fsck again=
st them, I get this:
# fsck /dev/ad4p4 =20
fsck: Could not determine filesystem type
I have to specify the file system type explicitly:
# fsck -t ufs /dev/ad4p7
** /dev/ad4p7 (NO WRITE)
** Last Mounted on /v0
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
39 files, 553 used, 48573784 free (24 frags, 6071720 blocks, 0.0% fragmenta=
tion)
Why do I have to specify the fstype explicitly? I have a similar system con=
figured with fdisk/bsdlabel and the fsck command doesn't have any problems =
with determining the fstype. Is there something we need to do to allow the =
fstype of GPT partitions to be automatically determined by fsck?
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