So rc6 didn't help (I had already tried rc5 as well, so it seems anything later than linux- image-4.2.8-040208-generic_4.2.8-040208.201512150620_amd64.deb does not boot).
Should I report this to some upstream bug tracker? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574178 Title: 4.4.0-21 "gave up waiting for root device" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574178/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
