I've install Ubuntu 12.10 and now I can't mount any partitions.

I get the same error with drives: Adding read ACL for uid 1000 to /media/proach failed: Operation not supported


I have one word for this 'bug': fun. :) I saw exactly the same error message today, and the solution is...

sudo mkdir /media/$USER
sudo chown $USER:$USER /media/$USER

(thank jasmines for the tipp!)

I know, fun, but that was the solution for me! Ubuntu wants to use a non-existent directory for the mount target, and doesn't create it before attempting the mounting operation!

  • Better sudo chown USERNAME.USERNAME /media/USERNAME. Please, edit your answer so I can award the bounty! – jasmines Oct 23 '12 at 10:31

Just follow these instructions:

sudo blkid
sudo -H gedit /etc/fstab

and fill information= in the appropriate pattern. For example, mine was:

UUID=445F-4D4E /home/str007/kortele vfat errors=remount-ro 0 1

My file now looks like this

# /etc/fstab: static file system information.
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda2 during installation
UUID=69ede51f-a51e-4493-9c86-e553f952b3e6 / ext2    errors=remount-ro 0   1
UUID=445F-4D4E /home/str007/kortele vfat errors=remount-ro 0 1

I created a directory in /media with my user name and with read-write privileges for me. This worked OK, since I'm the only user on this computer, but it would be a pain with more users or changing users.


As @jasmines points out it's a known bug. The ACL change is not really needed to mount, but it's attempted if the directory doesn't exist.

  • As others point out, you can just create /mount/$USER.
  • The error happens when your root filesystem doesn't support acl. You can enable acl support by editing /etc/fstab (see details in bug).
  • The final fix was just not touching ACLs if unsupported. You can get this fix it by installing udisks2 from quantal-proposed. Enabling proposed will offer you tons of upgrades; it's simpler to just install the .deb.

the suggestion to mkdir + chown is right! For absolute beginners, the following command will tell you your username


You can mount manually of course by: sudo mount /dev/sdx1 /mnt/mountpoint. I know it'a pain compared to 12.04...but it works.


I had the same problem with both a usb device and my primary (windows) partition. I managed to mount my windows partition by opening the "disks" application, selecting my primary partition, clicking "more actions..." (just below partition) >> "edit mount options" >> and beside "Identify as" I selected /dev/sda1.

This allow me to mount my windows partition but it didn’t work for my usb device


The last answer make a solution in some cases...

I just found a solution 100% effective. Follow my instructions:

1) In a console write that: $ sudo gedit /etc/fstab

2) Enter your admin password

3) In the gedit Editor, go to the end of the file and write your data with this structure: #Hard Drive n1 the next line auto-mont the partition sda2 in the /media directory /dev/sda2 /media/myHardDrive ntfs defaults 00 #For CD/DVD the next line auto-mont the CD/DVD in /media dictory with the type iso966 /dev/sr0 /media/CD-DVD iso966

4)save the current text and close de gedit editor.

If all of this works, when you insert a DVD, Hard Drive or any device, they will auto-mount in the directory that you put in the /etc/fstab file.

Of course, if you are any question or error in the steps, i will write as soon i can.

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