On Wed, Jun 13, 2012 at 4:37 PM, Steve Dowe <s...@warpuniversal.co.uk> wrote: > On 13/06/12 19:56, Tom H wrote: >> On Wed, Jun 13, 2012 at 2:41 PM, Gary Dale <garyd...@rogers.com> wrote: >>> >>> For example, Squeeze has problems with booting from partitioned RAID >>> arrays. >>> After running update-initramfs and update-grub, I find that the UUID for >>> the >>> partitions has been replaced with the UUID for the array, so that the >>> boot >>> fails. This particular problem can be solved by fixing the UUIDs in >>> grub.cfg. >> >> grub2 was patched about a year ago to boot from a partitioned mdraid >> "/boot" but I don't know whether that change made it into squeeze. > > I have just found the GNU grub development mailing list discussion, here: > https://lists.gnu.org/archive/html/grub-devel/2012-02/msg00003.html > > Although the symptoms are the same as the Debian bug > (http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610184), I'm not sure > whether the causes are. > > I believe, in my case, the cause is the one discussed in the GNU list, > namely that grub couldn't accurately detect whether a partition of the whole > disk was assigned for RAID use. In the developer's own words, > > "if you have < 64KiB between end of disk and end of partition the metadata > is exactly in the same place for either if the whole disks are raided or > only partitions. And no field which allows to distinguish those"... > > On that basis, and the fact that grub in squeeze 6.0.5 seemed to exhibit the > problem, I decided to update the machine to testing/wheezy instead and see > if the problem disappears. > > I can confirm that it has. The error message no longer appears at boot time > and I don't need to intervene to get to my login prompt. > > For anyone reading this in the same dilemma, I'm not sure if things like > this would get backported to squeeze or not - perhaps someone has an idea > how to find out...
Since metadata 1.1 or 1.2 stores the metadata at the beginning rather than at the end, perhaps using a partitioned mdraid device with that metada works with squeeze. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAOdo=Sy4ReRPHKdZQw+AbqJwjnhBgfMFXNodQNz-=znopze...@mail.gmail.com
