Mac OS High Sierra and Sierra are versions of macOS released by Apple.

F5F Stay Refreshed Software Operating Systems Mac OS High Sierra and Sierra are versions of macOS released by Apple.

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Dorncat
Junior Member

07-24-2023, 01:31 PM

Is it possible to run both High Sierra and Sierra on an external hard drive? Or can you swap drives in your Mac Pro to change between High Sierra and Sierra versions by simply replacing the drive? Thanks!

Dorncat

07-24-2023, 01:31 PM #1

DanBarr2
Member

138

07-25-2023, 11:29 PM

It's feasible, but I prefer this option. To change, navigate to system preferences > startup disk, or press Option during boot.

DanBarr2

07-25-2023, 11:29 PM #2

It's feasible, but I prefer this option. To change, navigate to system preferences > startup disk, or press Option during boot.

SenpaiAllen
Junior Member

08-01-2023, 08:32 AM

You can alternate between Sierra and High Sierra by using specific menu options or settings. For guidance, look for in-game help sections or community forums. Older versions like Sierra Snow Leopard or Sierra OS X El Capitan may require checking system-specific menus or consulting archived guides.

SenpaiAllen

08-01-2023, 08:32 AM #3

SiphonicVirus
Member

201

08-02-2023, 09:18 PM

The procedure remains consistent across all compatible macOS/OS X releases. Insert a drive, set up installation there, and select your desired startup menu via the boot options in the Option menu during startup or through system settings.

SiphonicVirus

08-02-2023, 09:18 PM #4

the_true_benja
Member

121

08-03-2023, 05:48 AM

Yes, you can use an external drive.

the_true_benja

08-03-2023, 05:48 AM #5

Yes, you can use an external drive.

Ratlover555
Member

08-04-2023, 04:57 PM

Yes, if your Mac lacks native USB3 support, performance will be very poor.

Ratlover555

08-04-2023, 04:57 PM #6

Yes, if your Mac lacks native USB3 support, performance will be very poor.

pomme_cara
Junior Member

08-12-2023, 12:54 PM

Despite this, the startup time will remain significantly longer. It won't be the best scenario for an external drive. You'll likely observe a considerable decrease in speed.

pomme_cara

08-12-2023, 12:54 PM #7

Despite this, the startup time will remain significantly longer. It won't be the best scenario for an external drive. You'll likely observe a considerable decrease in speed.

Sahrend
Member

08-16-2023, 09:11 AM

MacOS becomes nearly impossible to use outside SSDs after El Capitan was released.

Sahrend

08-16-2023, 09:11 AM #8

MacOS becomes nearly impossible to use outside SSDs after El Capitan was released.

_7Hulk7_
Junior Member

08-18-2023, 05:54 AM

This means you need a high-speed SSD. Options include Samsung t3/t5, NVMe/PCIe SSDs housed in external enclosures, and SATA SSDs in similar setups.

_7Hulk7_

08-18-2023, 05:54 AM #9

This means you need a high-speed SSD. Options include Samsung t3/t5, NVMe/PCIe SSDs housed in external enclosures, and SATA SSDs in similar setups.

Magic_ManX
Junior Member

08-25-2023, 04:54 AM

#10

Set up High Sierra on an external drive without wiping your current installation to enable switching between Boot and macOS Sierra.

Magic_ManX

08-25-2023, 04:54 AM #10

Set up High Sierra on an external drive without wiping your current installation to enable switching between Boot and macOS Sierra.

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