EXT2-fs: warning: mounting unchecked file system

You need to run e2fsck (or fsck -t ext2 if you have the fsck front end
program) with the -a option to get it to clear the "dirty" flag, and
then cleanly unmount the partition during each shutdown.

The easiest way to do this is to get the latest fsck, umount, and
shutdown commands, available in Rik Faith's util-linux package ("Where
Are the Linux FTP Archives?") You have to make sure that your
/etc/rc*/ scripts use them correctly.

NB: Don't try to check a file system that's mounted read/write. This
includes the root partition if you don't see

VFS: mounted root ... read-only

at boot time. You must arrange to mount the root file system read/only
to start with, check it if necessary, and then remount it read/write.
Almost all distributions do this. If your's doesn't, read the
documentation that comes with util-linux to find out how to do this.

Note that you need to specify the -n option to mount so it won't try
to update /etc/mtab, since the root file system is still read-only,
and this will otherwise cause it to fail.

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