Date: Wed, 7 Jan 2004 07:44:56 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: Fabrizio Parrella <fabrizio@nldesign.com> Cc: current@freebsd.org Subject: Re: mount / umount Message-ID: <20040107074011.D5599@gamplex.bde.org> In-Reply-To: <200401061059.54892.fabrizio@nldesign.com> References: <200401061059.54892.fabrizio@nldesign.com>
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On Tue, 6 Jan 2004, Fabrizio Parrella wrote: > I mount a msdos floppy disk with: > > mount -tmsdos /dev/fd0 /mnt/floppy > > and everything works fine.. > when I tried to umount, I got this: > > umount: unmount of /mnt/floppy failed: Resourde temporary =A0unavailable > # fd0: hard error cmd=3Dwrite fsbn 19 (ST0 40<abnrml> ST1 2<write_protect= > ST2 0 > cyl 0 hd 1 sec 2 It's not writable, so you need to mount it with option ro. msdosfs used to have the nice property of not scribbling on disks unless there is a write() or chmod() etc. on the disk, but it now always writes to the FAT for non-ro mounts to clear the clean flag. > PLUS, if I try to mount the floppy disk by an user and not as root, I get= thie > message: > > msdosfs: /dev/fd0: Operation not permitted Various things prevent user mounts (see another reply), and non-clean disks should now prevent read-write mounting. I'm not sure if this works yet. Bruce
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