Yeaahhh ... the secure enclave seems to have pooched the idea of a USB stick booter. Restore Mode works fine.
Maybe I misunderstood you, but you can make a bootable USB stick from the installer app:
Maybe I misunderstood you, but you can make a bootable USB stick from the installer app:
It's been a while, since that was possible.
The M-series just basically put a fork in it.
That, and CCC kept crashing the machine.