Catalina on external HD?

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pwwwayne Author

Level 2

181 points

Catalina on external HD?

Can I install Catalina on an external HD and preserve Mojave on my MBP?

MacBook Pro 13", macOS 10.14

Posted on Nov 7, 2019 11:02 AM

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Answer 1

Top-ranking reply

John Galt

Level 10

153,544 points

Nov 7, 2019 01:45 PM in response to pwwwayne

Here's how: Upgrading macOS without fear - Apple Community

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Answer 2

VikingOSX

Level 10

122,088 points

Nov 7, 2019 12:36 PM in response to pwwwayne

I did a clean install of Catalina to an external Crucial MX500 SSD. Clean install, and works just fine with Mojave as primary boot drive in Late 2013 iMac. That external SSD is in a Vantec 2.5 inch drive enclosure (USB3.1 Gen 2), connected to a USB3.1 Gen 2 Inland 4-port (USBA) powered hub. Catalina flies.

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Answer 3

Old Toad

Level 10

214,284 points

Nov 7, 2019 12:19 PM in response to pwwwayne

Yes.

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Catalina on external HD?

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