Further research revealed that the issue (at least for me) was lvm2 being removed by dist-upgrade.
Symptoms fixed/worked around by "apt-get install lvm2" after dist- upgrade. -- Kernel update for 9.04 does not find root filesystem on LVM. https://bugs.launchpad.net/bugs/390347 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs