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You can install macOS (this also works for Catalina) on an external hard drive (I recommend an SSD if possible). This runs at native speed and you can use it to
by AlexeyBrin 7y ago
You can install macOS (this also works for Catalina) on an external hard drive (I recommend an SSD if possible). This runs at native speed and you can use it to test/try anything without touching the internal disk.
- dahx4Eev 7y agoYes this works! Highly recommended. I’ve installed it on an Intel 660p with a USB3 1GBps enclosure.
- pazimzadeh 7y agoDoes the SSD drive need a separate power source when booting from it or can it run on Thunderbolt 3?
- AlexeyBrin 7y agoNo separate power source, I've used a portable Samsung Passport 250/500 GB external SSD. Something like this https://www.amazon.com/Samsung-Portable-MU-PA250B-AM-Alluring/dp/B073H552FK/ https://www.amazon.com/Samsung-Portable-MU-PA250B-AM-Allurin... is similar with what I've used.