Forcing a file-system check

[Guest KShots]

Hello, I've got an odd setup...

 

I'm using seven SCSI 1 gig hard drives in a RAID-5 setup with ReiserFS and one ext3 non-RAID partition on the boot drive (I couldn't get the RAID-boot working)

 

During the initial setup of my machine, I had a few kernel panics and didn't get to shut down correctly. During bootup, the RAID-5 resynced, but there was no filesystem check... There should have been. I've tried using "fsck", but apparently I need to unmount to do this. If I unmount, I lose access to fsck. It's kinda a catch-22 :(. I seem to be running stably enough now (for a couple of weeks at least), but I'd like to scan it just in case.

[bvc]

If I unmount, I lose access to fsck

shouldn't....fsck is in /sbin. You need to go to init 1 to do this. As root from a terminal just type init 1, or from lilo (from what I've read)

linux 1

or

lilnux init 1

.....providing you still use the default label 'linux'.

 

You can't umount /, and /sbin is in /. Are you trying to check the ext3 or reiserfs fs's? For reiserfs it's reiserfsck. See man reiserfsck. the standard check is;

reiserfsck --check --logfile check.log /dev/hdx?

 

Replace x? with the correct hd/partition. I don't know anything about ext3.

[aru]

I don't know anything about ext3.

I guess that fsck will do it (you can try to use the flag '-t ext3', *I guess*)

 

 

Back to the main question, you can *also* force a file system check during boot, by rebooting with the "-F" flag.

 

~# shutdown -rF now

 

 

check man shutdown

[kkrekula]

After a power break, a friend of mine got corrupted files on the HD (ReiserFS).

 

By booting with the 1st Mandrake CD, I could perform filesystem check/fix on the disk.

 

/Kenneth

[Michel]

I thought fsck was intended if you didn't have a jounalized fielsystem......Else teh jounal:) is just read.....

[aru]

I thought fsck was intended if you didn't have a jounalized fielsystem......Else teh jounal:) is just read.....

True for reiserfs, fsck works for ext3 (first will run the journal, and if errors are reported, fsck will fix them (read man fsck and man e2fsck)

[Guest KShots]

You can't umount /' date=' and /sbin is in /.[/quote']

 

If I want a complete scan, wouldn't I need to scan / as well?

 

Are you trying to check the ext3 or reiserfs fs's?

 

Both (I have no idea if any of it was corrupted)

 

reiserfsck --check --logfile check.log /dev/hdx?

 

I'll give that command a whirl' date=' though I think it should be mdx instead of hdx from the RAID system

 

Back to the main question' date=' you can *also* force a file system check during boot, by rebooting with the "-F" flag.[/quote']

 

Cool, that looks like my easiest/most straightforward method then :)

 

By booting with the 1st Mandrake CD' date=' I could perform filesystem check/fix on the disk.[/quote']

 

That may be an option if I had a CD-ROM or a floppy :) If things get really bad I'll stick in a CD-ROM temporarily and try that

 

I thought fsck was intended if you didn't have a jounalized fielsystem......Else teh jounal:) is just read.....

 

The journalized file system still needs to be checked. The advantage of journalized is that it is far less likely to actually lose data in the event of a power failure, and one of the main advantages of ReiserFS is that the check is very fast (seconds instead of minutes or hours in my case :))