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Old 11-07-2009, 04:05 PM
EuphangeL's Avatar
EuphangeL EuphangeL is offline
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Join Date: Nov 2009
Posts: 5
Quote:
Originally Posted by thorazine74 View Post
I doubt you can dd the dmg anywhere, its a not a bit by bit image of the partition, it surely has some header, metadata, crc32, etc. and most likely its compressed.
The original message suggests something is wrong with the actual dmg, did you try to mount it after creating it? Or try to open it with some other tool?
Hmmm im also trying dd again from a temporary iDeneb installation but i think you're right. The dmg wasnt created from dd but from disk utility so its definetly compressed (i choosed it) not to mention any header or crc that its 99% to be there.

No i didnt try to mount it right after i created it. I just deleted the partition and booted installation disk to run Disk Utility and restore it to the new, bigger partition.

The same thing happened to me in the past with a vanilla installation disk. If i moved the dmg of the installation disk somewhere else and tried to restore it to a partition it would fail with the SAME message as my partition image.

It has to be something about stamps, date modification dates or i dont know what else that makes the disk utility unable to verify its source...

When i try to mount the dmg the message i get is no mountable file systems.. Also Pacifist failed to open the dmg because it couldn't mount it..

If there is NO way i can restore the image to a partition itself, can i at least somehow access the dmg to obtain some valuable files i have there? :/

Plus... Disk utility can convert the image, if i choose a no compression image, would dd bit by bit copy work?

Also i dont know why, but dd is reeeaally slow. Activity Monitor shows a disk write activity of 2MB/s and that means it could take 12 hours to copy the whole image to the partition.. Is that normal?

Last edited by EuphangeL; 11-07-2009 at 04:10 PM.
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