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Old 10-10-2007, 05:40 PM   #1
Registered: Dec 2003
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PCLinuxOS 2007: will not boot, says the superblock needs rebuilt.

The verbose boot screen runs its checks of the parititions and their filesystems. The result is that I am told that something is wrong with /hda3. The boot screen's message goes something like this: If there is a ReiserFS filsystem in the partition then the superblock is corrupt. Rebuild the superblock with --rebuild-sb command. I googled for that command and I also tried with my limited knowledge to run the command.

Evidently, I don't understand how to execute that command at all. I tried it several ways. Remember, I can't boot into the OS, so from the screen/shell that I am dumped to, I am supposed to rebuild the superblock. I think this happened because I deleted some partitions that were mounted by PCLOS (other distros). But, I have used a liveCD to modify the PCLOS fstab to have pretty much nothing on it but windows partition and the PCLOS partitions. I even removed the swap file from fstab (was that bad?)

I hope someone can help. This is a very customized installation and I would hate to reinstall.



Old 10-11-2007, 01:38 AM   #2
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I don't use reiserfs, so I can't say this will work. But, after examining the reiserfsck man page, I'd suggest that you try the following:
a) run 'reiserfsck --check /dev/hda3'. The output may give you instruction on which command to run next.
b) run reiserfsck --rebuild-sb /dev/hda3, or reiserfsck --fix-fixable /dev/hda3, or reiserfsck --rebuild-tree /dev/hda3, depending on the output of the check.
Old 10-12-2007, 06:12 AM   #3
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I think you have to do bigrigdriver's suggestion as root. Also check that /dev/hda3 is umounted.


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