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Date:      Sat, 16 Nov 1996 14:12:15 +0100 (MET)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        freebsd-hackers@freebsd.org (FreeBSD hackers)
Subject:   Re: earlier "holographic shell" in 2.2-ALPHA install procedure
Message-ID:  <199611161312.OAA07702@uriah.heep.sax.de>
In-Reply-To: <6143.848096377@time.cdrom.com> from "Jordan K. Hubbard" at "Nov 15, 96 02:19:37 pm"

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As Jordan K. Hubbard wrote:

> > I would like the ability to launch the "emergency
> > holographic shell" earlier in the install process,
> 
> So would I. :-)
> 
> Unfortunately, if you do that before the chroot is done then it's
> impossible to unmount the floppy and use the drive again for fixit or
> floppy installation.

Have you ever tried to simply umount() it with MNT_FORCE set?  (The
equivalent of ``umount -f''.)  I assume it's only busy since there are
device nodes on the fixit floppy that are currently in use by the
kernel, even though they have not been opened using the pathnames from
the fixit /dev.  I've noticed earlier that the kernel gets confused in
this situation.  umount(..., MNT_FORCE) works around this.

Another plea for DEVFS...

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



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