[gbdoc]

This may not resolve everyone’s problems, but it’s important to know that for clones to be bootable on silicon Macs (I have an M2 MBAir/Sonoma) you absolutely need to have a very fast external drive. IME, HDD won’t do the job, you need an SSD. I got an OWC envoy express thunderbolt 3 (usb-c) and fitted it out with a 1 TB OWC Aura P12 Pro. Now my SD! clones are bootable with no hassle. I did the same for a friend with the same machine. I’m not too tech-savvy, so I don’t know whether there might be other drives fast enough, but thunderbolt 3 surely is. I would suggest, Dave, that you make this very clear in your instructions.