Thanks for the comments! I'm happy to see people still find this useful after 3 years. I'm not using software RAID anymore after getting a couple second hand LSI cards for a low price. If I redid this guide I would do a couple things different: I would make the boot partition bigger. I would mount all the devpts, proc, and sysfs kernel filesystem after chroot, because it less likely to cause problem if you have to chroot again. (of course you would take /myraid off of the commands) I would also put swap on a second md1 raid, because there is a chance, especially if you don't have enough RAM, that a process or maybe even the kernel could crash if one of the drives failed. Unless the kernel has something built-in to handle one of multiple swap partitions failing. Someone smarter than me would know that.