Is it possible to boot OSX from a second disk?

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Cyber_bober2016-07-24 09:44:17

macOS

Cyber_bober, 2016-07-24 09:44:17

Hello, I'm going to install ssd, but I don't have enough space to completely transfer data from hdd, can I install another OSX on ssd and choose where to boot - from ssd or hdd?

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silverjoe, 2016-07-24
@Cyber_bober

When loading, press ALT and select the launch source.
You can even start from an external box (USB-HDD)
https://support.apple.com/ru-ru/HT201255