About 20 minutes later I checked on the upgrade/installation and the screen appeared to be frozen. If you look at the clock towards the top of this screenshot you'll it shows 01:22 whereas the screenshot I included in the original debug info shows 01:58 so I'd think I'd waited plenty long enough.
** Attachment added: "start_freeze.png" https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1423830/+attachment/4323670/+files/start_freeze.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1423830 Title: Trusty -> Vivid upgrade via live DVD froze (UEFI dual boot) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1423830/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
