Steve Borho skryf:
>
> On Mon, Nov 15, 1999 at 02:54:56PM -0800, Wellington Terumi Uemura wrote:
> > Hello all!
> >
> > Some times my RedHat gives me errors messgs when i try to:
> >
> > umount /mnt/cdrom
> >
> > I receive this error
> > umount: /mnt/cdrom: device is busy
>
> As root, run: fuser -a /mnt/cdrom
>
> This will tell you which processes the kernel thinks are currently using
> the mount point. Read the fuser man page for more info.
>
I had this exact problem, and fuser said "kernel mount" (I needed to use
"fuser -v /mnt/cdrom"). The problem was that another machine on my network
had mounted the CD via NFS. It did not help to unmount the CD on that
machine: this is apparently a bug in the new knfsd, since it does not arise
under the old NFS package.
Dirk
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