[Discuss] Grub2 and RAID1 Fedora 20

[gaf at blu.org (Jerry Feldman)]

On 01/02/2014 02:36 PM, Richard Pieri wrote:
> Assuming that the sdaX and sdbX partitions are mounted as RAID devices
> (ie, md126, md127, etc), you can just tell grub-install to install
> GRUB2 on whatever devices or partitions you want. GRUB2 is aware
> enough of mdraid metadevices to do the right thing.
>
> What's important here is that your /boot file system is also a RAID
> device of some sort or that you manually replicate everything across
> all of your replicas. In one of my specific cases I have 4 disks, two
> partitions per disk. sdX1 (/dev/md126, RAID1, 4 replicas) are small
> partitions for /boot, sdX2 (/dev/md127, RAID10) are allocated to LVM2.
> GRUB2 is automatically installed on sda1 and I've manually installed
> it on sd[bcd]1. GRUB and Linux don't care. I would still test to make
> sure that the system can boot from other devices. It should work but
> some BIOS and EFI implementations are more dodgy than others.
>
Ok. My /boot is a RAID1 partition /dev/md127.
Physical disk partitions are RAID.

-- 
Jerry Feldman <gaf at blu.org>
Boston Linux and Unix
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