I'm doing the best I can here. As I said in comment #6, "I just tried an Ubuntu Trusty w/Wily HWE -> Xenial upgrade and all went well, so I suspect this is limited to Ubuntu GNOME."
Since i can't boot into the freshly upgraded OS's I can't use ubuntu-bug to collect info so this was the only other way I knew to do this. When I try to copy the dist-upgrade logs using a lateral install it complains that apt-clone_system_stage.tar.gz can't be copied due to lack of permissions (see attached screenshot), that's why the collected logs are missing that. I've now repeated this with a mixture of amd64 and i386 Ubuntu GNOME fresh (and fully updated) installs of 14.04.2, 14.04.3, and 14.04.4. I'm currently replacing most of these failed upgrades to prepare for further testing but I do have one failed amd64 Trusty w/Vivid HWE -> Xenial upgrade next to the working Trusty install I'm using to post this, and I have another i386 Trusty w/Wily HWE -> Xenial failed upgrade on different hardware. So I could copy additional info from either one or both of those if i know what and how. I'm currently suffering the after effects of propofol anesthesia from a minor procedure earlier in the day so don't expect me to be even remotely fast or even particularly coherent. ** Attachment added: "Screenshot from 2016-04-20 18:50:43.png" https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1571939/+attachment/4641077/+files/Screenshot%20from%202016-04-20%2018%3A50%3A43.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1571939 Title: Ubuntu GNOME fails to boot after Trusty -> Xenial upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1571939/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
