topic Re: Mount a cdrom without root permissions in Operating System - HP-UX

Mount a cdrom without root permissions

Francisco J. Soler — Tue, 28 Jun 2005 09:22:14 GMT

Hello all, how can I mount the cdrom like a normal user? Without login with root permissions.

HP-UX 11.11

Thanks.
Frank.

Re: Mount a cdrom without root permissions

Robert-Jan Goossens_1 — Tue, 28 Jun 2005 09:26:45 GMT

Hi Fransisco,

Install and configure sudo.

http://hpux.cs.utah.edu/hppd/hpux/Sysadmin/sudo-1.6.8p7/

Best regards,
Robert-Jan

Re: Mount a cdrom without root permissions

Gopi Sekar — Tue, 28 Jun 2005 09:29:39 GMT

two ways: either execute the mount command using sudo, this is known to work.

second change the ownership of the cdrom device, I am not sure whether mount command will like it

Re: Mount a cdrom without root permissions

Bill Hassell — Tue, 28 Jun 2005 13:39:29 GMT

sudo is the only solution. The mount command doesn't care about permissions. It requires root privileges to modify the filesystem to include the CD (or any other mountable device). The mount command checks the user ID.

Re: Mount a cdrom without root permissions

Rick Garland — Tue, 28 Jun 2005 13:44:57 GMT

sudo is the tool to use.

http://www.courtsean.com
or
HP with the Internet Express for HPUX 11i v1 or 11i v2
http://software.hp.com and search for sudo

Re: Mount a cdrom without root permissions

Francisco J. Soler — Wed, 29 Jun 2005 05:05:09 GMT

Thanks all for yours suggestions.
sudo made the trick.

My solution was:
Install sudo (from depot file), edit the file /etc/sudoers and put this lines (ot6 is the hostname):

-- /etc/sudoers ---------
Host_Alias CDROM = ot6, localhost

ALL CDROM = NOPASSWD: /usr/sbin/mount /mnt/cdrom,\
/usr/sbin/umount /mnt/cdrom
--------- end sudoers file -----

in the /etc/fstab file the last line must be:

/dev/dsk/c0t0d0 /mnt/cdrom cdfs ro 0 0

Be sure the directory /mnt/cdrom exists.

Now to mount and umount a cd any user can do:

sudo mount /mnt/cdrom
sudo umount /mnt/cdrom

I have put a link in /usr/local/bin/mount and /usr/local/bin/umount pointing to /usr/sbin/mount and /usr/sbin/umount. Another way could be add /usr/sbin to the user's path

Frank.