Although it confirms that what I did should have been possible, Jake has already proven that, albeit with a new 'catch', there is no way of telling exactly what happened in my case. CCC backups are compatible with Migration Assistant, and we support that configuration.'Īs usual a prompt and comprehensive reply.

onto a replacement disk), then migrate data from the CCC backup via Migration Assistant. If you ever needed to restore everything from a non-bootable backup, you would install macOS via Recovery mode (e.g. You can restore individual files and folders using Finder or CCC while booted from your production volume, and you can also recover older versions of files from CCC snapshots.

Incidentally, you don't have to be able to boot your Mac from the CCC backup to restore data from it. We've given it a really good shot, but there are just way too many problems for us to be able to realistically resolve to make this a reliable solution, Apple introduces new challenges with every single OS update. This is probably an unsupportable configuration, and we are actually planning to drop support for this (very soon). Unfortunately it's impossible to get any insight into that part of the boot process. When that authentication fails, the system will reboot to the internal recovery volume, but we've seen cases where the system just keeps attempting to boot from the external device over and over. That isn't the problem here, though, rather I suspect there is something wrong with the authentication of the external device (it has to be authenticated by the user account associated with the internal storage). 'It is still possible to boot a Mac that was updated to 11.3 from an external device that is running 11.2.3 (I actually tested this exact configuration about 4 times). Guys, I got a reply from Mike at Bombich regarding my query on the topic and here is the reply I received:

Superduper backup mac