[ubuntu-in] filesystem got corrupted after filesystem check.........

[Sanjay Bhangar]

On Tue, Aug 25, 2009 at 5:43 PM, Gora Mohanty <gora at sarai.net> wrote:

> On Tue, 25 Aug 2009 17:06:56 +0530
> "stranger in black....." <gnuise at gmail.com> wrote:
>
> > There is a strange error in my friend's pc...... He was up with
> > jaunty.... But due to a sudden power failure, the system got
> > crashed........ After that the system is not booting and an error
> > message is showing * Kernel panic - not syncing: Attemptrd to
> > kill init! Dumping ftrace buffer: (ftrace buffer empty)*.........
> >
> > He used a live cd to check the filesystem using fsck
> > command....... But after that many folders and files like /etc/
> > got missed..........
> >
> > how to solve this?.
> [...]
>
> Sorry, but you probably can't solve this. A power failure while
> filesystem writes are going on can corrupt it, though machines
> should be less prone to this with a journalling filesystem. What
> filesystem was being used?


Is he using ext4 by any chance? Ext4 does not behave well at all with power
failure issues and this is a known bug if you google Ext4 Power Failure.
One link explains it a bit:
http://www.h-online.com/open/Ext4-data-loss-explanations-and-workarounds--/news/112892

You can hunt around, but as Gora says, probably not much that can be done
now :(

Best of luck,
Sanjay


>
> It is also in general a bad idea to run fsck, and blindly answer
> 'y' to all prompts. At this point, I think that you will need to
> reinstall the system. If /home was on a different partition, it
> might still be recoverable.
>
> Regards,
> Gora
>
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