Messages in this thread |  | | | Subject | Re: About /etc/mtab and /proc/mounts | | From | (Måns Rullgård) | | Date | 26 Feb 2003 14:54:23 +0100 |
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Olaf Dietsche <olaf.dietsche@t-online.de> writes:
> >> The 'user' option is in /etc/fstab, so this is not a problem. I can > >> mount _and_ umount /cdrom as a simple user. > > > > It's strange if you can. My mount (fairly recent) looks in fstab to > > determine whether a user should be allowed to mount a device. > > However, when unmounting it checks /etc/mtab to make sure it was you > > who mounted it in the first place, making it impossible to unmount > > someone else's cdrom. If you use the 'users' (note the 's') option > > instead any user can mount or unmount the device at any time, mtab > > being ignored. > > I just verified it. I and anybody else can mount and umount /cdrom. If > I mounted /cdrom, someone else can umount it. > > $ mount -V > mount: mount-2.11n > > $ grep user /etc/fstab > /dev/hdb/0 /cdrom iso9660 defaults,ro,unhide,user,noauto,noexec,nosuid 0 2 > > $ ls -l /etc/mtab > lrwxrwxrwx 1 root root 12 2002-09-22 02:58 /etc/mtab -> /proc/mounts > > When /etc/mtab is a regular file, it works as you described.
What does your /proc/mounts look like when the cdrom is mounted? Are you using a standard mount, or something hacked up by RH or others?
-- Måns Rullgård mru@users.sf.net - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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