Thanks. Just to clarify, I can't run the dd while the system is up and running normally? -Troy -----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Jim Canfield Sent: Wednesday, April 11, 2007 7:54 AM To: General Red Hat Linux discussion list Subject: Re: Failing Disk Troy Knabe wrote: > I have a Linux x86_64 4.4 system with 2 disk bays, but only 1 disk in the system currently. I believe the disk is failing and I have ordered a replacement. Assuming that I am right, and the disk is failing, how can I dump the system disk from the failing disk to the new one, and still be able to boot off of the new disk? > > If you are getting another drive that is the same size or larger, you can use DD to duplicate everything bit for bit. Assuming old drive is /dev/sda and new is /dev/sdb: 1) Boot using a rescue CD, either redhat or my favorite - sysrescuecd (http://www.sysresccd.org/) 2) At root prompt verify /dev/sda is actually your old disk using fdisk #fdisk /dev/sda....and press "p" to view partition table. 3) dd if=/dev/sda of=/dev/sdb 4) Wait...it will take a while. 5) Remove old drive insert new drive. Note: If you have corrupt or unreadable data on the primary drive, dd may fail. At that point you might want to start looking at some of the tools on the rescuecd. -Jim -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
