As I mentioned in the previous post, there’s a bug in Golden Gate that is not showing proper external copies as bootable, even though they’re made correctly, with Apple’s own replicator.
The workaround, if you must, is listed there (you should also be able to install Golden Gate over the backup from Recovery). For those who doubt (you know who you are), this is a screen shot of my Mac Studio1 booting off a SuperDuper copy made to a JBOD PRO-BLADE Station (I’ve also tested a MacBook Neo and a MacBook Pro).
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NOTACHANCE is obviously not my real serial number, but I thought this would be funnier than just blacking it out. ↩︎