[SOLVED] umount (eject) for a regular user

cz0 · Last edited by cz0 on Sat Mar 27, 2010 10:45 am; edited 1 time in total

Hi, folks!
Some time ago I wrote an udev rule + script, that helps me to mount a flashdrive. When a flashdrive inserted, the rule fires and make a folder in /mnt like flashN (where N is number of the flashdive starting from 0) and then mount that drive. Everything is fine, except 1 thing - I have to be root to be able to umount/eject it. Options like user or users does not help as they need flash drive to be listed in /etc/fstab .
Is there any solutions of that problem except adding user to disk group or let him make a passwordless sudo umount ?

mikegpitt · Advocate Joined: 22 May 2004 Posts: 3224

Have you tried an automounting solution like halevt (successor of ivman)? Halevt will automatically detect pluggable media and mount it under /media. This can then be ejected as a regular user.

One tip when using halevt, you will want to comment out the lines in your /etc/fstab for those devices, since it won't automount anything inside there.

VoidMage · Watchman Joined: 14 Oct 2006 Posts: 6196

Considering the state of hal, halevt seems a dead end.

mikegpitt · Advocate Joined: 22 May 2004 Posts: 3224

VoidMage · Watchman Joined: 14 Oct 2006 Posts: 6196

It's a bit hard to tell now.
I don't know what xfce uses.
KDE4 uses hal backend in solid, though a few days ago a bug was filed in KDE bugzilla to
migrate to libudev.
Recent Gnome uses udisks (formerly DeviceKit-disks - a dbus layer upon libudev) as a backend for Nautilus.

I'm not sure if a recent platform independent solution exists.

mikegpitt · Advocate Joined: 22 May 2004 Posts: 3224

d2_racing · Posted: Mon Mar 15, 2010 1:38 am Post subject:

Or something that will talk with udev and devicekit.

cz0 · Posted: Mon Mar 15, 2010 7:56 pm Post subject:

So, no ideas how to let regular user to unount device, mounted by root?

Naib · Posted: Mon Mar 15, 2010 8:39 pm Post subject:

if root actually mounted it... concider sudo rule on mount for users/wheel users
_________________
#define HelloWorld int
#define Int main()
#define Return printf
#define Print return
#include <stdio>
HelloWorld Int {
Return("Hello, world!\n");
Print 0;

cz0 · Posted: Tue Mar 16, 2010 6:52 am Post subject:

Well, I think, that udev uses root for it's operations, but I can use any other user, will it do?

cz0 · Posted: Tue Mar 16, 2010 6:59 am Post subject:

The question is:
Is there is a way to mount partition/drive so any regular user can umount it without adding it to /etc/fstab ?
P.S. a "regular" user can be in disk group.
P.P.S. OK, lets imagine, that user, that I want to be able to umount the partition is in disk group.

cz0 · Posted: Sat Mar 27, 2010 10:45 am Post subject:

OK, got it working mostly as I want it to by adding the following line to /etc/sudorrs