On Sat, 31 Dec 2011 03:59:13 +0000 (UTC) jlcenter@xxxxxxxxxxx wrote: > Hi, > > I've been trying to install Ubuntu 11.10 on a mdadm imsm raid1 array, but it fails installing grub. I had to chroot /target to install mdadm from the distribution. I've also upgraded to the latest version of mdadm, hoping this would fix the problem. This is the error I'm getting: > > root@ubuntu:/# grub-install --recheck /dev/md/V1 > /usr/sbin/grub-probe: error: no such disk. > Auto-detection of a filesystem of /dev/md126p3 failed. > Try with --recheck. > If the problem persists please report this together with the output of "/usr/sbin/grub-probe --device-map="/boot/grub/device.map" --target=fs -v /boot/grub" to <bug-grub@xxxxxxx> > > Here's how mdadm sees my config: > > root@ubuntu:/dev# mdadm --examine --scan > ARRAY metadata=imsm UUID=92ae2913:95d651ca:62154f33:7069b04c > ARRAY /dev/md/V1 container=92ae2913:95d651ca:62154f33:7069b04c member=0 UUID=71b12777:c6a51a84:5b0f1d11:0bd6e497 > > I also tried with several variations of /dev/md126, etc., but always with the same result. I also tried to install directly to one of the disks in the array, but this didn't work, either. When I ran grub-probe, I got the following error: > > /usr/sbin/grub-probe: info: opening mduuid/71b12777c6a51a845b0f1d110bd6e497,3. > /usr/sbin/grub-probe: error: no such disk. > > What could be causing this problem? How do I fix it? Please let me know if I need to supply more information to troubleshoot this problem. > Sounds like a problem with 'grub'. I suggest you find a list for discussing that tool. Feel free to keep linux-raid on 'cc' as the outcome may be interesting for us too. Thanks, NeilBrown
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