On Sun, 30 Apr 2000, Hal Burgiss wrote:
> Trying to fsck my root partition on a running system, and I am now
> consistently getting:
>
> #init 1
> (appears to go alright ... )
> #umount -a
> mount: / device busy
>
> (or similar). Trying
>
> #mount -n -o remount,ro /
>
> also fails with same error. What is keeping this busy? Extremely few
> processes were running (less than 10?). This *should* work, no?
> Also, I occasionally get various FS as busy on shutdown. Right now I
> just want to run e2fsck, but after a zillion tries, I give up.
>
> Redhat 6.2 (with updates), kernel 2.2.15pre9 SMP. / is on IDE0, if that
> makes a difference. I've had the devices busy problem on shutdown with
> various kernels going back at least several months. Sometimes it
> works, sometimes it doesn't. Right now, it won't :( Any clues?
>
Reboot with a custom boot floppy or a "rescue" floppy and
then fsck the hard drive. You can't unmount a drive that's
being used. Thus, you can't unmount / or /home or /usr or
any other "standard" partition.
OTOH, if you use a rescue disk with a boot floppy,
everything should be fine and you should be able to fsck
the hard drive!
John
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