On Tue, 2017-01-24 at 17:14 -0500, m.roth at 5-cent.us wrote: > So, it installed happily. > > Then wouldn't boot. No problem, I'll bring it up with pxe, then chroot and > grub2-install. > > Um, nope. I edited the device map from hd0 and hd1 being the RAID to > /dev/sda and /dev/sdb, then ran grup2-install. It now tells me can't > identify the filesystem on hd0, and can't perform a safety check, and > gives up. > > What am I missing? Google is not giving me any answers.... > Surely, if you are using software RAID, then you should configure that RAID in anaconda, that will then cope with setting up the partitions to allow booting. Basically it needs a small non-RAID partition to hold /boot on the boot disk. Remember that the boot sequence is generally: BIOS reads MBR and executes it; MBR code reads kernel from /boot and executes it (yes, it's more complicated than that). If the MBR code doesn't know how to read a RAID partition, then it's going to fail, that's why you have a small non-RAID partition to hold /boot. Hardware RAID is different because it interfaces at the BIOS level so the MBR code doesn't need to know how to specifically read it. P.