Can grub be installed on a md array?

Derek Broughton news at
Thu Oct 16 16:09:06 UTC 2008

Rashkae wrote:

>> Thanks for the advice Mark and Rashkae. I guess now I actually have a
>> valid reason for having a separate partition for /boot. Would you
>> recommend setting the bootable flag for /boot partition on each drive or
>> just one of them?
> None of them.  (I'll try to explain, but this is technical, and while I
> understand the process, I might get some terminology wrong)

Wouldn't it just have been a lot easier to say that modern OSes don't care
about the bootable flag? :-)  (Yes, you may be right that there are
circumstances where it's used, but that was under the "really fancy"

> Protip:  Dos MBR can only boot from a primary partition.  Lilo has the
> ability to write a dos-like mbr that can also boot from a logical
> partition (those are the partitions you create inside an extended
> partition)  You don't have to use lilo as boot manager to benefit from
> this, but I'm not at all sure that Windows itself would be able to boot
> if installed in a logical partition.

Windows doesn't need a primary (since XP, I believe)

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