Re: booting from a raid1

[Emil Micek]

Hi

On Fri, 1 Oct 2010, lee wrote:

> Hi,
>
> I'm trying to figure out how to boot from a RAID1 created with mdadm
> on Debian testing amd64.
>
> md0 : active raid1 sdd1[0] sdf1[1]
>      488384400 blocks super 1.2 [2/2] [UU]

As far as i know grub2 can't boot from raid arrays with version 1.2 
metadata superblock. At least your /boot partition must reside on RAID 
with version 0.9 superblock. You can create such array by passing the 
'--metadata=0.90' option to mdadm when creating the array.

Regards,

Emil Micek