System Recovery

[Michael ODonnell]

> I would definitely recommned booting from external media (DVD)
> and checking *all* the filesystems.  There may be undetected
> corruption elsewhere on your disk.  And you can't check the root
> filesystem of the running system.

Good advice.  Note that you can sometimes manage to fsck even
the root filesystem of a running system if you first say this:

   mount -oremount,ro /