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Old 10-12-2010, 03:14 PM   #1
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SUSE Linux, 2.6.16, fsck returns bad superblock on reiserfs, next step

Working on an inherited system. I can't write (tried touch) 2 of the file systems even tho they show up in /etc/fstab as rw. Tried to remount with
mount -t reiserfs -o remount,rw /dev/stage2/lvol0 /stage2
it returns can't read superblock, so ran
fsck /stage2

it returns
bread: Cannot read the block (4026531839): (Input/output error).

Warning... fsck.reiserfs for device /dev/stage2/lvol0 exited with signal 6.
fsck.reiserfs /dev/stage2/lvol0 failed (status 0x8). Run manually!

so ran

fsck.reiserfs --check /stage

it returns
Do you want to run this program?[N/Yes] (note need to type Yes if you do):Yes
bread: Cannot read the block (2): (Is a directory).
reiserfs_open: bread failed reading block 2
bread: Cannot read the block (16): (Is a directory).
reiserfs_open: bread failed reading block 16

reiserfs_open: the reiserfs superblock cannot be found on /stage2.
Failed to open the filesystem.

If the partition table has not been changed, and the partition is
valid and it really contains a reiserfs partition, then the
superblock is corrupted and you need to run this utility with

New to linux so not sure what the risk is in rebuilding superblocks (drive hasn't been repartitioned that I KNOW of - but is inherited so...)

Anything I should try before running fsck.reiserfs --rebuild-sb, and will that also fix the 2 directory blocks it can't read?

Old 10-12-2010, 03:49 PM   #2
John VV
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Registered: Aug 2005
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just how old is this "inherited system"

the kernel you posted is quite old - 2.6.16
the current OpenSUSE has
and SUSE 11 enterprise sp1 has 2.6.32
Old 10-12-2010, 04:28 PM   #3
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Registered: Oct 2010
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How Old

Dunno how old - we inherited "temporarily" for some tests, but HW is about year and half if I'm correct. Looks like SLES/SUSE 10 SP3. So ignorant question#2 then is about when did 2.6.16 come out (and how could I normally check


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