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Date:      Sun, 27 Oct 2002 22:39:49 +0100
From:      Hanspeter Roth <hanspeter_roth@hotmail.com>
To:        freebsd-stable@freebsd.org
Subject:   unmounting disabled with writeprotected floppy
Message-ID:  <20021027223949.A359@gicco.homeip.net>

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Hello,

I frequently store some files on a floppy. Thus my fstab contains
/dev/fd0                /floppy         msdos   rw,noauto   0 0
This usually allows me to write on the floppy.
Sometimes I insert a floppy that's writeprotected.
If I forget to mount it readonly explicitly (-r) the system thinks
it is writeable. If the floppy is unmounted without any attempts to
write to the floppy there is no problem.
The problem starts if I forget to mention -r. After attempting to
unmount the floppy the system starts to I bark at the console. 
It prevents the floppy from being unmounted. After shutdown is
issued the system insists that the floppy must be unmounted _before_
any other filesystem (/, /var, /usr) is unmounted. But since it also
prevents the floppy from being unmounted it also prevents the other
filesystems from being unmounted. They will be fscked on the next
boot. 
I think this situation is better solved in Linux. Why not mount the
floppy implicitly readonly if it is writeprotected?

-Hanspeter

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