You must use Terminal, as Disk Utility does not support this use.įirst, mount the. For this occasional task, the hdid utility is your friend. Luckily for us all, this task is possible! I hope to spare you much of the suffering I experienced with this hint. dmg file to be written to a raw disk or a block device. dmg file to be restored, nor did they allow a full-disk.
Much investigation and much research followed: the image was not corrupt, but the graphical tools did not allow a multi-partition. Said date came all too soon, and I found myself accused by Disk Utility of offering it a corrupted image. Like many others, I used Disk Utility to create a disk image (.dmg) from my full disk, with the expectation that I could restore this backup at a later date.
