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Date:      07 Jan 2005 10:50:03 -0500
From:      Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
To:        Kevin Smith <smithcam@adelphia.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: how do I permit ordinary users to mound SCSI devices ?
Message-ID:  <44is69me6s.fsf@be-well.ilk.org>
In-Reply-To: <41DE2FA3.4090500@adelphia.net>
References:  <41DE22AE.50101@adelphia.net> <41DE2457.20508@incubus.de> <41DE2FA3.4090500@adelphia.net>

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Kevin Smith <smithcam@adelphia.net> writes:

> Matthias Buelow wrote:
> 
> > Kevin Smith wrote:
> >
> >> How do I permit ordinary users to mound SCSI devices ?
> >>
> >> As suggested in the FAQ, section 9, I am able to allow members of
> >> operator group mount the cdrom by setting sysctl -w vfs.usrmount=1
> >> This does not appear to work with SCSI devices.  (ex: /dev/da0s2)
> >> I get the error:
> >>  > mount -t msdos /dev/da0s2 ~/ipod
> >> msdosfs: /dev/da0s2: Permission denied
> >
> >
> > the last time I was bitten by that issue, the mount point had to be
> > owned by the user (group write access apparently isn't enough).
> > that's a bit of a problem with things like gui mounters and I hope
> > that that behaviour will be changed sometime in the future.  at
> > least I can't see any security problems with a user being able to
> > mount over a mountpoint where he only has group write access.
> 
> 
> I thought that was the case, but I created a directory in the user's
> home directory (as that user) and used it as the mount point and it
> still does not permit it  (see example above: ~/ipod is owned by the
> user).  It works with the cdrom device though- i can mount that as a
> regular operator user.

Sounds like the users don't have permissions on /dev/da0s2 but do have
permissions on /dev/acd0.



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