Quadratic fsck
Bryn M. Reeves
breeves at redhat.com
Mon Jul 28 13:46:46 UTC 2008
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Patrick O'Callaghan wrote:
> On Mon, 2008-07-28 at 09:29 +0800, John Summerfield wrote:
>> For years, the default on RH (and successor) systems has been to only
>> do
>> filesystem checks if the filesystem is dirty. Checks based on
>> intervals
>> and mounts are not done.
>
> I'm not sure that's true. I've definitely seen boot-time messages along
> the lines of "mount count exceeded; performing fsck", and I never change
> the defaults.
It is true for file systems that anaconda creates. The installer does
the equivalent of "tune2fs -c0 -i0" on the file systems that it creates.
If you are creating file systems post-install with mkfs/mke2fs then this
step needs to be done manually. This is usually the cause of "maximal
mount count reached.." and "/dev/blah has not been checked in XX days"
messages on Red Hat systems that I've come across.
Regards,
Bryn.
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