Just wanted to confirm that the -11 kernel update did not fix the problem for my black macbook. The boot hang first started with -10 and -9 still works fine.
As described previously, the boot stops with ATA errors and dumps me into an initramfs shell. I hope this is fixed soon :( -- boot-time race condition initializing md https://launchpad.net/bugs/75681 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs