Hello List, I'm having some issues with my mdraid. The system is Fedora 10, x86_64. I installed the system with two Seagate drives in a RAID 1 configuration. I let the configuration utility automatically setup the RAID configuration. I believe each drive is configured a single partition with this partition being part of the RAID device. About a week ago, device 0 reported errors and was dropped from the array by mdraid. The RAID continued in a degraded state with no problems. I finally had time to work on it so I shut down the PC and tried to run some disk drive utilities on it. The BIOS isn't even seeing the drive, so I'll RMA it to Seagate. Drive 0 is unplugged and not in the system, leaving Drive 1. When I try to boot, I get just a message of "GRUB". I'm assuming that my problem is that GRUB was installed to drive 0 and drive 0 was set to be my primary. I've tried booting to the FC10 Install media in recovery mode, but when it attempts to mount the device, I receive a message that the device must be initialized, which will cause a loss of all data. How do I resolve the problem booting to drive 1? Second, once I install my replacement device, how do I rebuild the array? I assume I'll need to some how get my current Drive 1 set to primary and then install the second drive, and use mdadm to add it. Thank you for your help Law -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines