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"Or if you’re insatiably curious, consider installing the beta version on an external drive and starting up from that volume for a little operating-system touri

"Or if you’re insatiably curious, consider installing the beta version on an external drive and starting up from that volume for a little operating-system tourism." Has anyone been able to install macOS on external SSD on MacBook Air M1? I tried installing Big Sur on my external SATA SSD, but it never succeeded. I have to try installing Monterey, maybe they have fixed the installation. I don't want to install beta macOS on the internal drive next to Big Sur, because there has been cases where beta macOS versions have corrupted the entire disk.

jamesfmilne 5y ago
It's pretty much impossible to install macOS on an external drive on M1 Macs. Really sucks, I agree. The best you can do is create a separate APFS partition (not volume) to install on, but it's still dicey. I guess Apple just expects us to buy a another whole Mac for testing beta releases on?
- wlesieutre 5y ago
  You can, but for some reason it requires a Thunderbolt drive now. https://eclecticlight.co/2020/12/22/booting-an-m1-mac-from-an-external-disk-it-is-possible/ https://eclecticlight.co/2020/12/22/booting-an-m1-mac-from-a...