[PLUG] how to e2fsck without keeping /' mounted?

[Karl M. Hegbloom]

On Sun, 2002-11-24 at 16:30, Tyler F. Creelan wrote:
> Hi folks -
> 
> I'm trying to check my '/' filesystem, and according to e2fsck I should
> unmount my filesystem before checking it. However, when I try to
> unmount the filesystem ("umount /") I get this error:
> 
> "umount: /: device is busy"
> 
> How do I unmount my '/' filesystem so it can be checked without using the
> / filesystem itself?

An ext2 file system does not need to be umounted, IIRC, it will work if
you mount it read only.  It's been a long time since I've needed to
fsck.