x4 ~ # xfs_repair -V
xfs_repair version 3.2.0-alpha1
x4 ~ # mount -o logbsize=256k /dev/sdc1 /mnt
...
[ 6419.592649] XFS (sdc1): Mounting Filesystem
[ 6419.642480] XFS (sdc1): Ending clean mount
x4 ~ # xfs_info /dev/sdc1
meta-data=/dev/sdc1 isize=256 agcount=4, agsize=61047552 blks
= sectsz=4096 attr=2, projid32bit=0
= crc=0
data = bsize=4096 blocks=244190208, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal bsize=4096 blocks=119233, version=2
= sectsz=4096 sunit=1 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
x4 ~ # umount /mnt
x4 ~ # xfs_repair /dev/sdc1
Phase 1 - find and verify superblock...
Phase 2 - using internal log
- zero log...
ERROR: The filesystem has valuable metadata changes in a log which needs to
be replayed. Mount the filesystem to replay the log, and unmount it before
re-running xfs_repair. If you are unable to mount the filesystem, then use
the -L option to destroy the log and attempt a repair.
Note that destroying the log may cause corruption -- please attempt a mount
of the filesystem before doing this.
--
Markus
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