Re: [Xen-users] how to run fsck for a crashed domU?

[MS <ms@xxxxxxxxxx>]

Do this:

fsck.ext2 -y -f /home/vm/vm01.img
or
fsck.ext2 -y -f /home/vm/vm01.img
or
xfs_check -f /home/vm/vm01.img

... the case for your filesystem type.

Rudi Ahlers schrieb:
> Hi all
>
> I have a CentOS Xen domU, on a CentOS server, which crashed and 
> doesn't boot up. The domU uses a disk image, /home/vm/vm01.img
> I get the following in the console:
>
> ----snip----
>
> Scanning logical volumes
>   Reading all physical volumes.  This may take a while...
>   Found volume group "VolGroup00" using metadata type lvm2
> Activating logical volumes
>   2 logical volume(s) in volume group "VolGroup00" now active
> Creating root device.
> Mounting root filesystem.
> kjournald starting.  Commit interval 5 second
>
> -----snip-----
>
> So, it's using an LVM file system, on top of the Xen image.
> But, then I get this:
>
> ----snip-----
> Setting up Logical Volume Management:   2 logical volume(s) in volume 
> group "VolGroup00" now active
> [  OK  ]
> Checking filesystems
> Checking all file systems.
> [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/VolGroup00/LogVol00
> /dev/VolGroup00/LogVol00 contains a file system with errors, check 
> forced.
> /dev/VolGroup00/LogVol00: Inode 67830 has illegal block(s).
>
> /dev/VolGroup00/LogVol00: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
>     (i.e., without -a or -p options)
> [FAILED]
>
> *** An error occurred during the file system check.
> *** Dropping you to a shell; the system will reboot
> *** when you leave the shell.
>
>
> ----snip-----
>
>
> So, how can I run fsck on that file system?
>
> I have tried to mount /home/vm/vm01.img - but it fails:
>
> # mount -o loop /home/vm/vm01.img /mnt/vm01/
> mount: you must specify the filesystem type

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