I have the same problem with two upgraded versions of Ubuntu 32bit 12.10. USB, alternate partitions of the boot drive are not available. They can be manually mounted via sudo mount, but are not otherwise accessible.

[job8]

I have always transferred my photos from camera to computer memory by removing the SD card and using a card reader rather than bringing the camera to the computer and connecting directly.

I've been doing this for years without problem and did it without problem earlier this week under 12.04.

Today under 12.10 I do exactly the same but I get the message:

Unable to mount 2.0 GB volume.
Adding read ACL for uid 1002 to 'media/myname' failed: Operation not supported.

I have tried two SD cards but the result is the same.

The card is recognised by the system and its icon appears on the left hand side of the screen but clicking on it has no effect. It also appears in the file manager but clicking on it produces the error report.

I have read the paragraphs on Media Card Reader problems in the 12.10 Help but found no solution since nothing has changed
except the version of Ubuntu. There is mention of the possibility that direct connection of the camera might work but I want to keep my present practice and avoid having to bring my cameras to the computer room.

Help would be appreciated!

[job8 (jlballe)]

I have the same problem with two 32 bit Ubuntu 12.10 upgrades. It also affects USB drives and alternate partitions on the boot drives. The devices can be manually mounted via sudo mount, but not as a user mount and not automatic mount.

John

[ophansom (oph-oph)]

Thanks for the information. My USB memory sticks don't work either and I have linked the bugs.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[chuuboku (chuuboku)]

This has effected SD cards, cds, dvds, and mounting my android phone (admittedly, just a microSD card). Everything was automatic and easy before the 12.10 upgrade.

[schollsky (schollsky)]

See bug #1048059: The workaround is to open a terminal, then enter the following without comments, $USERNAME being a variable. Here you should fill in your actual username:

# Add a folder
sudo mkdir /media/$USERNAME

# assign the folder to my user
sudo chown $USERNAME.$USERNAME /media/$USERNAME

Please give feedback wether this helps.

Kind regards,

Stefan

[job8 (jlballe)]

Stefan's fix has solved the problem for each of my four computers that were affected by this bug.

John