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repair failed lvm partition
i have create a LV /dev/vg/lv.
I failed to mount it. I ran the following commands but all of them failed.
# fsck.ext3 /dev/vg/lv
e2fsck 1.39 (29-May-2006)
Couldn't find ext2 superblock, trying backup blocks...
fsck.ext3: Bad magic number in super-block while trying to open /dev/vg/lv
The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
#e2fsck -b 8193 /dev/vg/
e2fsck 1.39 (29-May-2006)
e2fsck: Bad magic number in super-block while trying to open /dev/vg/lv
The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
#mke2fs -n /dev/vg/lv
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
1310720 inodes, 2621440 blocks
131072 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2684354560
80 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
# e2fsck -b 32768 /dev/vg/lv
e2fsck 1.39 (29-May-2006)
e2fsck: Bad magic number in super-block while trying to open /dev/vg/lv
* I tried all superblock backups but only this gave a different error
# e2fsck -b 163840 /dev/vg/lv
e2fsck 1.39 (29-May-2006)
e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/vg/lv
Could this be a zero-length partition?
pls kindly advise.
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