Well, I found a workaround for my spesific problem: start the OS installation again, go to the screen where you can format/partition hard-drives. I did what I had to do there, then cancelled the installation and rebooted. Now I can mount/unmount the hard drive and I can use it. However, If I try to format it, then I get the error message again.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1069234 Title: regression: local admin not authorized for many tasks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-disk-utility/+bug/1069234/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs