Jukka Marin wrote:
> > > root@pyy / # umount -R /cd0
> > > umount: /cd0: Invalid argument
>
> root@pyy / # mount /cd0
> mount: realpath /cd0: No such file or directory
> root@pyy / # mount /dev/cd0d /a
> mount_ffs: /dev/cd0d on /a: Device busy

I'm not following the thread closely, did you already tried
umount -R -f /cd0 ?

Jaromir
-- 
Jaromir Dolecek <jdolecek@NetBSD.org>      http://www.ics.muni.cz/~dolecek/
NetBSD - just plain best OS! -=*=- Got spare MCA cards or docs? Hand me them!