Maximal mount count warning

Hello,

What can cause an "EXT2-fs warning: maximal mount count reached, running
e2fsck is recommended" ?

I mounted "mount /dev/fd0 /mnt/floppy" and,
unmounted "umount /mnt/floppy"
repeatedly as I was tranferring files from one computer to another.

If a floppy was normally unmounted each time after mounting it, why should
the "mount count" keep increasing ?

The problem where this occured is on "RedHat 7.1" and kernel 2.4.2

Thanks,
Tony
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Re: Maximal mount count warning

Tony Gogoi wrote:

> What can cause an "EXT2-fs warning: maximal mount count reached, running
> e2fsck is recommended" ?

Exceeding the filesystem's maximum mount count.

> I mounted "mount /dev/fd0 /mnt/floppy" and,
> unmounted "umount /mnt/floppy"
> repeatedly as I was tranferring files from one computer to another.

Yep, that will do it.

> If a floppy was normally unmounted each time after mounting it, why should
> the "mount count" keep increasing ?

Because it is incremented whenever the filesystem is mounted, and it
*isn't* decremented when the filesystem is unmounted.

The purpose of the maximum mount count setting is to ensure that the
filesystem gets checked occasionally. There is also a maximum check
interval, which operates according to elapsed time rather than the
total number of mount operations.

If you want to avoid this warning, use "tune2fs -c -1 /dev/fd0";
similarly, use "tune2fs -i 0 /dev/fd0" to disable the maximum check
interval. In either case, tune2fs should only be run on unmounted
filesystems.

--
Glynn Clements
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Re: Maximal mount count warning

>
> > If a floppy was normally unmounted each time after mounting it, why should
> > the "mount count" keep increasing ?
>
> Because it is incremented whenever the filesystem is mounted, and it
> *isn't* decremented when the filesystem is unmounted.
>

Strange ! I wrongly assumed that there'd be a MOD_DEC_COUNT whenever the
floppy is umounted.
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