Can grub be installed on a md array?
John Hubbard
ender8282 at yahoo.com
Wed Oct 15 18:48:01 UTC 2008
Mark Haney wrote:
> John Hubbard wrote:
>
>> I am trying to set up my system (8.04 server) with software raid. I got
>> most of the way through the install and then it failed to install grub.
>> I tried installing lilo and that failed as well. I feel like the
>> problem is that my /boot partition is part of a 4 disk raid 5 array. Is
>> it possible to install your boot loader onto a raid array? When setting
>> up a partition on a raid array, there is no option to make the partition
>> bootable. I guess this makes sense but the question is how do I get
>> around this? Does the logical partition on each of the disks that makes
>> up the /boot raid need to be made bootable? Does just one of those
>> partitions need to be made bootable?
>>
>>
>
>
> It /can/ be done, but it is NOT recommended. If a drive fails, it might
> make the system unbootable.
>
> My personal recommendation for this is to have a boot drive mirrored,
> then RAID the data drives. It is NEVER a good idea to make the boot
> drive part of the RAID array.
>
>
>
>
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?
--
-john
To be or not to be, that is the question
2b || !2b
(0b10)*(0b1100010) || !(0b10)*(0b1100010)
0b11000100 || !0b11000100
0b11000100 || 0b00111011
0b11111111
255, that is the answer.
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