ext4 fs going backwards in time

[Jesper Fruergaard Andersen]

Yes, I have checked the content of the files. Everything seems to be
correct as of 2 month ago. Newer files and directories are missing. I
don't remember if I have deleted any files that would have reappeared.

I am running 64 bit btw. The system is normally booted and shut down
once per day so it has been rebootes and thus the filesystem
mounted/unmounted many times in that period.

And interestingly the logfiles in /var/log show entries from Apr 15,
May 8, June 10 and forward. So seems not completely 2 months ago.

On Sun, Jun 13, 2010 at 10:54 AM, PleegWat <pleegwat at telfort.nl> wrote:
> On 06/13/2010 11:38 AM, Jesper Fruergaard Andersen wrote:
>> I have a desktop running ubuntu 9.10 with the root fs being ext4 on
>> raid1. The desktop has an additional ext3 fs also on raid1.
>>
>> I tried to upgrade it to 10.04 using do-release-upgrade which seemed
>> to work fine. But when I rebooted it failed complaining that /dev/shm
>> was missing.
>> I then rebooted on a 10.04 install cd and accessed then filesystems.
>> The additional ext3 fs seems fine but the strange thing is the ext4
>> root fs. fsck runs without any complaints. But the content seems to
>> have stepped about 2 month back in time.
>>
>> /etc/lsb-release shows 9.10
>> Content of /home have recent files missing and the newest timestamp is
>> about 2 month old.
>>
>> How can a filesystem loose about 2 months of updates and return to
>> what appears to be an old consistent state?
>> Anything I can do to return to current time.
>>
>
> Have you checked the data? Is it just the timestamps that have gone back
> in time, or is actual newer data also missing.
>
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-- 
Jesper