Restore a disk image to a disk using Disk Utility on Mac
You can restore a disk image to a disk. To do this, you first need to erase the disk. If the disk image has multiple partitions, you must restore each partition individually.
Note: If your Mac has macOS 11 or later, restoring a disk image doesn’t reinstall macOS. To erase your Mac and reinstall macOS, follow the steps in Erase your Mac (for a Mac with Apple silicon or an Intel-based Mac with the Apple T2 Security Chip) or Erase and reinstall macOS (for other Mac models).
Restore a disk image with a single volume to a disk
Go to the Disk Utility app
on your Mac.If Disk Utility isn’t open, click
in the Dock, type Disk Utility in the Search field, then click .Select the volume that you want to restore in the sidebar, then click
.This is the volume that is erased and becomes the exact copy.
Click the Restore pop-up menu, then choose the volume you want to copy.
If you’re restoring from a disk image, click the Image button, then navigate to that disk image.
Click Restore.
Restore a disk image with multiple volumes to a disk
To restore a disk image with multiple volumes to a disk, you must partition the destination disk, then restore each volume individually.
On your Mac, click
in the Dock to open a Finder window, then double-click the disk image to open it.The disk image’s volumes appear as disks in the Finder.
Go to the Disk Utility
app.If Disk Utility isn’t open, click
in the Dock, type Disk Utility in the Search field, then click .Select the disk in the sidebar, click
, then partition the destination disk.The destination disk must have as many partitions as the disk image, and each of the disk’s partitions must be at least as large as the corresponding partition in the disk image. See Partition a physical disk.
In the sidebar, select the volume that you want to restore, then click
.This is the volume that is erased and becomes the exact copy.
Do one of the following:
Restore from a volume: Click the “Restore from” pop-up menu, then choose the volume you want to copy.
Restore from a disk image: Click Image, choose the disk image you want to copy, then click Open.
Click Restore.
Repeat steps 4–6 for each remaining partition.