Dear brunus, The problem is not solved in 7.04/7.10.
You have to use "raid_degraded" grub entry with /etc/initramfs-tools/scripts/init-premount/raid_degraded way. (and update your initramfs, execute "sudo update-initramfs -u") And, I test with 7.10, mdadm_2.6.2-1ubuntu2_<arch>.deb(7.10's) *does not work* in this way. When you use 7.10, please down-grade mdadm package. Use 7.04's mdadm package: "mdadm_2.5.6-7ubuntu5_<arch>.deb". -- 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