Hi, I installed a Raid 1 linux system on our server, using the RedHat 7.2 utility raid system. Everything is mirrored on this disk (/, /boot, /usr, /tmp..) I need to change one of these disks (the ibm is not working anymore). I partitioned a new disk (exactly the same as the original) and then plugged it in the computer. I used raidhotadd /dev/mdx /dev/hdcx to add the second disk. Everything worked fine, but if I unplugged the first disk I am not able to boot anymore on the second, I guess there is a problem with lilo trying to write on the MBR. I didn't find anything about it on the HowTos.. out of date. Can someone tells me how to make the second disk bootable ? Thanks, -Stephan - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html