5 Replies Latest reply: Jan 5, 2010 1:09 PM by baltwo
Greg Schneck Level 1 Level 1
I had backed up an older G4 with a disk image of the boot disk. I was having severe problems so I reformatted the boot drive and started a restore (using disk utility from startup disk). The restore started fine and ran a while but then "stalled." The "progress" bar stopped and the system just kept "hitting" the Utility DVD install disk non-stop (as shown by disk access light).

Now when I try again, I immediately get a "Restore Failure - Could not validate source - error 254"

The disk image being restored is on a hard drive. I copied it to another drive and tried again with the same result.

This is being done on an old G4 Tower, dual 1 GHz PPC under 10.5.8


(This won't kill me as all my data files are also on my MBP, I just don't want to have to reinstall all my apps, setups, etc.)

G4 PPC, Mac OS X (10.5.8)
  • baltwo Level 9 Level 9
    Launch Disk Utility, select the image, and scan for restore. Too late, but you should have verified you could do the restore before wiping the HD. In the future, I suggest making a bootable backup/clone and verifying it before deleting the original, then restoration is simply restoring the backup/clone.
  • Greg Schneck Level 1 Level 1
    Yes, for my "real" machine (my Intel MBP) I have images, clones, and Time Machine Backups not to mention my data files written to DVD. I've got at least triplicate backup. This was a old machine I was setting up for a specific purpose. I'm not losing any data but I just didn't want to have to reload apps and such. But guess I have no alternative. Thanks for the tip. I had never used the "scan for restore option" before so I learned something. Usually I just trust my multiple backup method so if one source is bad, no big deal. Thanks baltwo!
  • baltwo Level 9 Level 9
    Thanks for the feedback. If you're saying that scanning for restore allowed you to do the restore, then I'm glad to help. Good computing.
  • Greg Schneck Level 1 Level 1
    No.. When I did the scan the image file showed corrupt.... But I learned something and the first think I did was to scan my two bkup image files for my MBP and they verified OK. So, learning something and learning that there is a verify function for an image file made my problem worth the while....
  • baltwo Level 9 Level 9
    Thanks for clarifying. Sorry the image is corrupt. Good computing.