I have run into the same problem where my disk upgrade path included booting from temprorarily degraded array.
I have tried to update /etc/mdadm/mdadm.conf with the new file system UUIDs (using mdadm --detail --scan and replacing the corresponding line in /etc/mdadm/mdadm.conf) and after that update-initrd Now the system seems to be booting without any problems. I have also used -e 0.90 paramater in mdadm when assembling the degraded array (to create an older version of superblock that is recognized by the kernel), though I am not sure whether this had anything to do with the outcome. -- cannot boot raid1 with only one disk https://bugs.launchpad.net/bugs/120375 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
