[lug] RAID redundancy with boot sectors?

David L. Anselmi anselmi at anselmi.us
Sun Nov 26 17:56:25 MST 2006

D. Stimits wrote:
> I'm curious about something with software RAID on linux. You can easily 
> make partitions redundant by using something like RAID 1/5/10 instead of 
> just partitioning directly on a drive. What's the right way to back up 
> the boot sector itself?

LILO has options to handle this.  For RAID-1 I tell it to use /dev/md0 
as the boot device and install to the MBRs of the drives in the RAID. 
It seems to be able to do the right thing with other setups, or at least 
you can tell it what you want it to do.  But I haven't used it that way.


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