Just wanted to add this also happened to me during the lucid release cycle. I followed Mark's instructions above.
1. Boot from ubuntu livecd (preferably the same version as you were running) 2. sudo apt-get install mdadm 3. sudo mdadm --assemble --scan 4. sudo mkdir /md0 5. sudo mount /dev/md0 /md0 6. sudo mv /boot /boot1 7. sudo ln -s /md0/boot /boot 8. uname -r 9. Use the output of step 8 to replace in the update-initramfs step; make sure the kernel you specify exist on your installation. You can check /md0/boot to see what kernels you have sudo update-initramfs -k 2.6.32-18-generic -c -t -- /dev/md0 does not exist. Dropping to a shell. https://bugs.launchpad.net/bugs/128313 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