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Switcher Hangout (Windows to Mac)
Migration from iMac Catalina (Intel) to iMac Big Sur (M1)
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<blockquote data-quote="MacInWin" data-source="post: 1893117" data-attributes="member: 396914"><p>In that situation it is possible to boot from external because the boot process on the internal was still functioning. And you could, I think, have achieved the same result by booting into Safe Mode. I don't know for sure that last one, but I suspect the file was being loaded at boot, which is why you couldn't delete it. But Safe Mode does not allow loading for non-Apple products, so that should have allowed you to delete it.</p><p></p><p>What is going to be interesting in the future is the challenge of running more than one version of macOS on the Mx systems. There is a new concept called "Owner" for the system that is not much publicized at this point, but which gets involved in the boot process even before any system is booted. And the assignment of "Owner" of the system gets entangled in the version the "Owner" can boot. So, for example, the system has to go through a lot of electronic gymnastics to allow you to boot the Monterey beta from an external drive when you have Big Sur installed on the internal. What is not clear at this point is how well that same set of gymnastics will be accomplished if the internal drive is running Monterey and the external is on Big Sur. I'm hoping some beta tester is working that way and that "it just works."</p></blockquote><p></p>
[QUOTE="MacInWin, post: 1893117, member: 396914"] In that situation it is possible to boot from external because the boot process on the internal was still functioning. And you could, I think, have achieved the same result by booting into Safe Mode. I don't know for sure that last one, but I suspect the file was being loaded at boot, which is why you couldn't delete it. But Safe Mode does not allow loading for non-Apple products, so that should have allowed you to delete it. What is going to be interesting in the future is the challenge of running more than one version of macOS on the Mx systems. There is a new concept called "Owner" for the system that is not much publicized at this point, but which gets involved in the boot process even before any system is booted. And the assignment of "Owner" of the system gets entangled in the version the "Owner" can boot. So, for example, the system has to go through a lot of electronic gymnastics to allow you to boot the Monterey beta from an external drive when you have Big Sur installed on the internal. What is not clear at this point is how well that same set of gymnastics will be accomplished if the internal drive is running Monterey and the external is on Big Sur. I'm hoping some beta tester is working that way and that "it just works." [/QUOTE]
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Migration from iMac Catalina (Intel) to iMac Big Sur (M1)
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