Thanks to all. On 01/14/2012 03:06 PM, tv.deb...@googlemail.com wrote: > 14/01/2012 13:18, Tom H: >> On Sat, Jan 14, 2012 at 5:06 AM, Panayiotis >> Karabassis<pan...@gmail.com> wrote: >>> >>> On my desktop, which is running Squeeze, I tried to upgrade some >>> packages to their Wheezy version. I have now reverted the upgrade, but I >>> am alarmed. >>> >>> One of the packages was grub2 which was at version >>> 1.98+20100804-14+squeeze1 and was upgraded to 1.99-14. >>> >>> To cut a long story short, I ended with an unbootable system. Grub >>> refused to install on the MBR. I do not remember the message exactly, >>> but it mentioned that the record was unusually short, and core.img could >>> not fit into it. Then it told me that the only option was to use >>> blocklists but that was discouraged as unreliable. >>> >>> What am I going to do when Wheezy becomes stable. This is a new >>> computer. >> >> I've both upgraded to and installed wheezy without a hitch so you've >> either hit some local hitch or stumbled into a bug. >> >> It'd be nice to see the actual error message... >> >> This must be ab msdos disk. How large is the post-MBR gap? How large >> is "core.img"? >> >> > > Hint for the above: > > ls -lh /boot/grub | grep core.img
It's 29K. But this is for Squeeze's grub, which works! I don't know how to find out the size of the gap... > ;-) > > But this is likely not the problem. The disk is under 2TB, so Debian > installer wouldn't have used gpt automatically, and since you don't know > what gpt [1] is you probably didn't do it yourself. > > The disk belongs to a raid, right ? Did you try to install grub on all > raid members ? How did you setup the raid, from the Debian installer or > otherwise ? Yes, it's two identical 1TB disks (raid1), and on top of them LVM. The boot partition is contained in the LVM (I use an initrd). grub-install works for both disks on Squeeze, and fails for both disks on Wheezy. The partitions were created by the Squeeze's Debian installer. > [1] https://en.wikipedia.org/wiki/GUID_Partition_Table Thanks. I won't upgrade to Wheezy until it is stable, but what should I do then if it isn't fixed? Should I go with the blocklists method? Can Lilo boot from an LVM partition sitting on top of mdadm? Thanks again. -- Best regards, Panayiotis Karabassis -- 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/4f118f5b.4070...@gmail.com