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Old 02-13-2006, 05:21 PM   #1
Registered: Nov 2003
Distribution: Debian - Lenny
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Input/output errors at start-up

I was told that this error could indicate some bad blocks. Since I can't safely run e2fsck on a mounted file system, how can I?
Old 02-13-2006, 05:44 PM   #2
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Do you have a boot/rescue cd? You can use it to boot and then run e2fsck. It's usually the safest way. Also, you can unmount a filesystem (if it's not your / or another important one), check it, then mount again.
Old 02-13-2006, 06:15 PM   #3
Registered: Nov 2003
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input/output errors

I tried sudo umount /boot; and got device is busy(The same error for /home)
From Your suggestion (I could use Sarge (Disk #1) or Knoppix?
With Knoppix, when it first starts, everything is unmounted. Would I then open an Xterm, and do e2fsck -c?
Old 02-13-2006, 08:52 PM   #4
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That's about it. Another way, which I usually use, is to boot into signle user mode, and do "mount -o remount,ro /" to remount the root partition readonly (unmounting everything else). You can then run fsck and badblocks safely.


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