I just replaced two md-raided (RAID1) disks with bigger ones and decided to check out how far I get with them when I put them in another machine. The kernel boots and then panics when it wants to mount the root filesystem on the disk. md: Autodetecting RAID arrays md: autorun md: autorun DONE < not sure if this means it was successful or failed, I rather think it failed because it doesn't list any md devices? > Creating root device Mounting root filesystem EXT3-fs: unable to read superblock I pxe-booted in rescue mode. Interestingly, the rescue mode detects and mounts the RAID partitions just fine and mdadm sees them all as healthy. It mounts them under /tmp/md0 and /tmp/md1. Shouldn't the installed system be able to do the same, mount under /dev/md0 and /dev/md1 and then find root on /dev/md1 as told by grub.conf? Or could it be that the installed system also mounts them under /tmp? I'm not sure how I can troubleshoot this. Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com