Mount a ufs partition writable by group wheel?
Is it possible to mount a ufs partition writable by group wheel? How would the fstab entry look? Thanks, Michael M ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Mount a ufs partition writable by group wheel?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, 2 Sep 2011 13:01+0200, Michael M wrote: Is it possible to mount a ufs partition writable by group wheel? How would the fstab entry look? It really depends on what you want to achieve. If it's okay that the (local) root directory of said filesystem is (co-)owned by the wheel group, then: mount /filesystem, run chgrp wheel /filesystem, and finally run chmod g+w /filesystem Maybe you should look into POSIX ACLs, etc if you are looking for something more advanced. Trond. - -- - -- Trond Endrestøl | trond.endres...@fagskolen.gjovik.no ACM, NAS, NUUG, SAGE, USENIX |FreeBSD 8.2-STABLE Alpine 2.00 -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.14 (FreeBSD) iEYEARECAAYFAk5gv8cACgkQbYWZalUoElvVbgCdHpQGTE9MCypqjD9FxT9FDJQP LvEAnjd1tHBrs9AxSHN84NN3iWNYsGEf =DjyX -END PGP SIGNATURE-___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Mount a ufs partition writable by group wheel?
On Fri, 2 Sep 2011 13:01:58 +0200, Michael M wrote: Is it possible to mount a ufs partition writable by group wheel? It is. :-) How would the fstab entry look? Maybe like this: # Device Mountpoint FStype Options Dump Pass # - - - -- - /dev/da0 /mnt ufsrw 22 The mount point (directory /mnt in this example) has to be +w for wheel, e. g. # chown root:wheel /mnt # chmod u=rwx,g=rwx,o=rx /mnt # mount /mnt That should be _nearly_ the default (FreeBSD/x86 8.2-STABLE here): drwxr-xr-x 2 root wheel 512 Feb 18 2011 mnt/ ^ This is where you could use # chmod g+w /mnt to allow writes for members of the wheel group. You may apply further restrictions (e. g. -rx for others) if needed), and maybe noauto on the options field. For mounting in general: The user issuing the mount command has to have proper access to the device file (/dev/da0 in this example) _and_ the target directory. See man mount and man fstab for details. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ... ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Mount a ufs partition writable by group wheel?
From owner-freebsd-questi...@freebsd.org Fri Sep 2 06:30:22 2011 Date: Fri, 2 Sep 2011 13:01:58 +0200 From: Michael M thecr...@gmail.com To: freebsd-questions@freebsd.org Subject: Mount a ufs partition writable by group wheel? Is it possible to mount a ufs partition writable by group wheel? Of course. How would the fstab entry look? just like any other fstab entry. It might be a good idea to explain exactly what you want to be able to do, first. When you just ask a question about the 'mechanics' of an operation with many possible interpretations, you'll get useless answers. (see above :) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Mount a ufs partition writable by group wheel?
Excuse my generic question, I should have asked: Can the group rw options for given partition destination be defined in fstab upon mount? Thanks, Michael M On Fri, Sep 2, 2011 at 2:02 PM, Robert Bonomi bon...@mail.r-bonomi.comwrote: From owner-freebsd-questi...@freebsd.org Fri Sep 2 06:30:22 2011 Date: Fri, 2 Sep 2011 13:01:58 +0200 From: Michael M thecr...@gmail.com To: freebsd-questions@freebsd.org Subject: Mount a ufs partition writable by group wheel? Is it possible to mount a ufs partition writable by group wheel? Of course. How would the fstab entry look? just like any other fstab entry. It might be a good idea to explain exactly what you want to be able to do, first. When you just ask a question about the 'mechanics' of an operation with many possible interpretations, you'll get useless answers. (see above :) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Mount a ufs partition writable by group wheel?
On Fri, 2 Sep 2011 16:08:08 +0200, Michael M wrote: Excuse my generic question, I should have asked: Can the group rw options for given partition destination be defined in fstab upon mount? No. The access rights depend on the owner:group permissions of the mountpoint directory. The _act_ of mounting depends on the mounter's ownership of the corresponding device files. So in order to to only allow wheel group members to access a certain mount point for ug=rwx, the permissions of that mount point have to be set. This is done independently from what /etc/fstab is for (which controls the _act_ of mounting if all requirements - as mentioned above - are met). However, there _are_ options that can be included in fstab for applying a certain mask to files contained in a mounted directory, see -m and -M in man mount_msdosfs for example. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ... ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Mount a ufs partition writable by group wheel?
On Fri, Sep 2, 2011 at 4:31 PM, Polytropon free...@edvax.de wrote: On Fri, 2 Sep 2011 16:08:08 +0200, Michael M wrote: Excuse my generic question, I should have asked: Can the group rw options for given partition destination be defined in fstab upon mount? No. The access rights depend on the owner:group permissions of the mountpoint directory. The _act_ of mounting depends on the mounter's ownership of the corresponding device files. So in order to to only allow wheel group members to access a certain mount point for ug=rwx, the permissions of that mount point have to be set. This is done independently from what /etc/fstab is for (which controls the _act_ of mounting if all requirements - as mentioned above - are met). However, there _are_ options that can be included in fstab for applying a certain mask to files contained in a mounted directory, see -m and -M in man mount_msdosfs for example. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ... Thanks for the info :) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
