-------- Original Message -------- Subject: cloning hard disk for recovery From: Les Mikesell <lesmikesell@xxxxxxxxx> To: For users of Fedora <fedora-list@xxxxxxxxxx> Date: 11/16/2006 05:16 PM
On Thu, 2006-11-16 at 16:49 -0700, Paul Lemmons wrote:My hard disk is squealing like a rodent on fire. I think I am an trouble. I believe I can read the whole drive so I can get the data from it. I have seen a number of references to using dd to clone a disk. That is what I am hoping to do. Here are the steps I am planning to do, please redirect me as needed because I have not had to do this before.1) Install new hard disk along side the current hard disk 2) dd if=/dev/hda of=/dev/hdb conv=noerror,sync 3) remove bad hard disk 4) re-cable the new hard disk using old hard disk connection 5) pray 6) rebootYou shouldn't have any problem as long as you can still read the old disk and the new one is the same size. Just don't try to boot with both drives still in place after the copy because you will have duplicate disk labels. Those used to confuse the kernel when booting, but perhaps it has been fixed by now.
It appears that this machine is running SATA, If that changes things, let me know. When I try to do a:
# hdparm -i /dev/sda I get /dev/sda: HDIO_GET_IDENTITY failed: Inappropriate ioctl for device # fdisk -l gives me: Disk /dev/sda: 164.6 GB, 164696555520 bytes 255 heads, 63 sectors/track, 20023 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 20023 160730325 8e Linux LVMBut I would really like to have the model, the size it thinks it is and other various details. Is it possible to do this with SATA drives?
New Plan: 1) Install new hard disk along side the current hard disk 2) dd if=/dev/sda of=/dev/sdb conv=noerror,sync 3) remove bad hard disk 4) re-cable the new hard disk using old hard disk connection 5) pray twice as hard 6) reboot
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