It appears my degraded RAID1 problem was actually due to an instance of bug #699802. After working around this bug, I am able to boot with a degraded RAID1 and get the appropriate prompt, or skip the prompt with BOOT_DEGRADED=true. This is with quiet and splash removed. There is still a problem when using quiet and splash, but I think that this is far more likely to be a UEFI/video related problem. Apologies for the noise.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/778520 Title: install on degraded raid1 does not boot, drops to initramfs shell To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/778520/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs