This looks like a duplicate bug but try one more thing. Run: apt-cdrom add &> ~/Desktop/file
And attach the output file. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/695441 Title: Dist upgrade fails (offline, alternate-cd, cdromupgrade) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs