I see this as two issues, firstly the update-manager doesn't check for enough disk space (in my case asked for 1770, I cleared 1.8G and it still fell over), secondly when it then runs out of space the message is unreadable and its a total guess as to which box does what on the dialog.
The message btw is while installing packages. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/763801 Title: Low disk space notification is unreadable during distribution upgrade -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs