Nice to know! On Fri, 14 Jul 2006, Michael Menge wrote:
I found the problem the /etc/mdadm.conf had the wrong UUIDs
echo "DEVICES partitions" > /etc/mdadm.conf mdadm -Ebsc partitions >> /etc/mdadm.conf mkinitrd
solved the problem
Quoting Joachim Schrod <jschrod@acm.org>:
Michael Menge wrote:
I have clonend a System with tar and sfdisk and now i have Problems Booting the System. The Rootfs is on /dev/md1, Swap on /dev/md0 [...] I dont understand why the devieces for /dev/md1 are not found but the devices for /dev/md0 and why they are found on the original system.
For safety you might want to remove the resume=/dev/md0 boot parameter from grub/menu.lst while you're debugging the problem. The "attempting manual resume" message looks suspicious to me, that might invoke a relict from your cloning. (Resuming from a mirrored swap disk didn't work for me anyhow in 10.0; I didn't try it in 10.1 yet.)
Furthermore, you might want to check with mdadm --detail /dev/md1 and mdadm --examine on the disks that are part of that meta-device that the UUIDs of the md and the disks are the same and that they match the entry in /etc/mdadm.conf.
I don't know exactly how the bootup code (i.e., madam --assemble --scan) determines which partition belongs into the which md; but I read that the UUIDs have something to do with it. At least they are recorded in the md superblock, and mdadm.conf lists them as the only information -- so what else is used for scanning and assembling? (That might be wrong, though.)
Best, Joachim
-- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Joachim Schrod Email: jschrod@acm.org Roedermark, Germany
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