I don't think booting from raid makes any difference here. The crc error comes from the kernel that can't unpack the initramfs and as a consequence the modules required to access the raid are not loaded.
-- CRC error, not able to boot from md0 (raid) https://launchpad.net/bugs/61382 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
