downgrading udev package to 204-0ubuntu19.1 solved my missing /dev/disk/by-uuid problems. Not sure if this is related to the originally reported lockup
I haven't investigated deeply (trying to catch up on 4hours lost work), but it looks like the udev persistent-storage rules may have changed (when by-label became optional?) to cause by-uuid to be skipped -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1260727 Title: [Acer Aspire 5720] 3.11.0-15-generic lockup regression To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1260727/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs