[olug] System booting from software raid -- possible?

Phil Brutsche phil at brutsche.us
Mon Apr 16 00:14:02 UTC 2007

Daniel Linder wrote:
> Good idea, thanks.
> So, where does GRUB get installed to?  Or is it just a matter of
> installing the GRUB boot loader to each /dev/sd* device and when /dev/sda
> fails, the GRUB on /dev/sdb takes over?


Note that, in the failed drive case, things are *not* graceful. If you
want graceful, use a hardware RAID controller.

BTW make sure you test a drive failure with your distribution! Not all
installers set up grub properly to handle a mirrored /boot (or wherever
your kernel is).

This link has the details:


Phil Brutsche
phil at brutsche.us

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