On Sat, Feb 13, 2010 at 1:35 AM, Giovanni Tessore <giotex@xxxxxxxxxx> wrote: > >>> I recently reinstalled my systems, and I had to use superblock 0.9 to be >>> able to boot ext4 from raid-1 (kernel 2.6.31 - grub2 1.97-beta4). >>> I didn't go deep with it as I was quite in hurry, so I'm not sure if it >>> depends by grub2 or by kernel's md autodetection at boot. >>> I used superblock 1.1 for the others md devices. >>> >>> ... >> >> mdadm 1.0 block devices, since stored at the end, can still be used >> /read only/ the same way that 0.90 devices were used before grub knew >> how to talk to them. By looking at the underlying block devices and >> ignoring their tails. This does however only hold for raid-1 layouts >> with the 1.0 or 0.90 format labels. > > I guessed so, infact I created superblock 1.0 for the raid-1 devices md0 > (root) and md1 (swap), while 1.1 for the others .. but it didn't work and I > had to revert to 0.9 for root and swap ... > > Regards > > -- > Cordiali saluti. > Yours faithfully. > > Giovanni Tessore > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Just a guess, but did you tell grub root was /dev/md0 or did you say root was /dev/sd(whatever backs md0) ? -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html