[2754] in RedHat Linux List
Re: Mount Message
daemon@ATHENA.MIT.EDU (Hal L. DeVore Jr.)
Tue Nov 5 10:46:19 1996
To: redhat-list@redhat.com
In-Reply-To: Your message of "Tue, 05 Nov 1996 17:32:37 +0300."
<199611052031.RAA22891@doha.net>
Reply-To: hdevore@crow.bmc.com
Date: Tue, 05 Nov 1996 09:36:18 -0600
From: "Hal L. DeVore Jr." <hdevore@crow.bmc.com>
Resent-From: redhat-list@redhat.com
kskhater@qatar.net.qa said:
> "/dev/hdb2 has reached maximum mount count"
> I get that with other hd devices.
Since Linux and UNIXes cache data that is written to disk there are
mechanisms in place to help ensure that everything got written before the
system went down. If you go thru normal shutdown everything gets flushed
out and the filesystem gets marked as clean and unmounted. If your system
locks up, loses power, or in some other way fails to shutdown normally then
the filesystem isn't "clean" at boot time and the fsck program that matches
the filesystem type is run to verify structural information and cleanup
potential problems.
Then, just as a final check for latent damage, even if you do shutdown
cleanly every single time a "number of times this filesystem has been
mounted since last fsck" count is kept. If that exceeds a value (the
maxmimum mount count) then fsck is run regardless of the cleanliness state
and the count is reset.
At least that's how it's supposed to work. Any other behavior (like
reporting maximum mount count reached EVERY time you boot) indicates a
problem.
Hal DeVore (hdevore@bmc.com)
--
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