Quadratic fsck

[Bryn M. Reeves]

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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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