Hi

I have a usb external hdd which gets automounted each time I start the system. The mount point ubuntu creates is /media/55FF.. (more characters).

I created another user (part of plugdev group to access this drive) and it works only when one user is logged in. If the other user logs in and tries to access the hdd, a permission deny error occurs, although mount -v shows the disk as mounted: rw,nosuid,nodev,allow_other,default_permissions,blksize=4096

How can I have 2 (or more) users logged in, have access to this drive (and not only one of them) ?

EDIT: And to answer part of my question, doing an ls -l on /media shows that the mount point is owned only by the user which initially mounted this disk (nobody else has write or even read permissions on the drive) - which makes sense, however does anyone have any pointers as to how I can change that so that auto mounted usb disks have more permissive access rights ?

Run the command That should do it.

Hi Nexus,

and thanks for the reply. Unfortunately it didn't seem to do the trick. Although chmod appears to be working it doesn't change any permissions: I tried with owner and with sudo.

After some more researching I did find this information about udev through the forums. So what I did was to write a udev rule for this drive particularly (according to it's serial and manufacturer):
This has the effect of creating a device symlink under /dev called usbhdd0. The reason for this, as I understood, is to be able to locate the actual drive since this can show up at different locations such as /dev/sdb or /dev/sdc depending on other mounted usb devices.

Then in /etc/fstab I added this line to mount the drive at startup:
This uses the symlink provided by udev to mount the usb hdd at the specified location: /media/usbhdd0.

So far it worked and the only issue I couldn't figure was that if I disconnect the drive while logged in, the system does not mount it back upon reconnection. For this I need to reboot.