I need automation and consistency to manage a modern enterprise Mac population. I don't care how I get that base image, but having technicians manually install the OS each time is ridiculous. So even if I just use an empty base image to start with, I need a 'monolithic image' process to do that. Laying down a base image in a minute through an automated process is significantly better than having technicians perform a full OS install manually (which we then have to patch if they aren't keeping it current). That said, we have to have a method of wiping a system and reinstalling the OS to factory settings, since we aren't going to throw away computers when a person leaves the company. I found that amusing since we had scaled up to 50% more than our current Mac count (our company has since split), so I know we don't 'need' MDM. They told us that MDM was a requirement to scale out our macOS deployments when we complained about SKEL requiring it. I have a feeling I may be entering the incorrect target location when trying to do the restore but I may be completely wrong altogether.Īpple likes to claim that inconvenient processes are 'dead' so they can make changes without consideration for them. When I enter the below commands, I get an error stating 'APFS inverter failed to invert the volume -invalid argument.'Īsr restore -source /Volumes/ExternalHDD/FinalImage.dmg -target /Volumes/Macintosh HD/ -erase Note: Both Mac disks are already formatted to AFPS and running High Sierra. However, the problem I'm having is restoring the image created, either on the same machine that I created the image or on another Mac. This successfully worked and I then copied the image to an external hard drive.

Hdiutil convert -format UDZO -o /Volumes/Macintosh HD/FinalImage /Volumes/ExternalHDD/tempimage.dmgĪsr imagescan -source /Volumes/Macintosh HD/FinalImage.dmg* *hdiutil create -srcFolder /Volumes/Macintosh HD/ -size XX -format UDRW -layout GPTSPUD /Volumes/ExternalHDD/tempimage I then booted it to recovery mode and entered the following commands in Terminal to create the image.

I upgraded a MacBook from Sierra to High Sierra OS. Previously, I was able to do this as per the link below (scroll all the way down to the Advanced section) Basically my goal is to achieve a monolithic system imaging in High Sierra.

Could not unmount disk macbook air