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Question: Install Sierra on APFS volume?

Hi Guys,


I need SierraOS in order to run a Garmin application and load maps to an older GPS.


I have:

- created an APFS volume of 100 gb on my Mac (which is running on High Sierra)

- created a bootable USB and installed Sierra OS.


What happens:

- I am able to boot from USB and can start the installation progress on the APFS volume.

- 6 seconds before completion I get an error, saying that Ineed to try it again.


My questions:

A) Who has successfully installed SierraOS on a High Sierra APFS volume?

B) is así impossible what are my next steps?


thanks so far!

cheers Maurice

iMac, OS X Yosemite (10.10.5), None

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Answer:

Get a good USB thumb drive from SansDisk or external hard drive to install Sierra onto it for when you need access to your Garmin. Be mindful, you might not be able to see your APFS volume from Startup Disk, and instead will have to use the Startup Manager to boot back into High Sierra.


Use the Option key, when possible instead of 'C' key to boot discs


The App Store may complain about installing on too new a system. If that happens, get out a Mac running an older system than Sierra to install Sierra on the thumb drive or hard drive.


In the future always keep clone backups of previous systems until you are certain all your Apps are compatible with the latest system you have installed. Sierra is available in your "Purchased history" of your App Store account.

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Apr 23, 2018 5:52 AM in response to SuperMaup In response to SuperMaup

Another option is to install Sierra on a Virtual Machine. You can run it in conjunction with your High Sierra boot.

The only thing I'm not sure of is connection to your Garmin while in the VM. Should be possible, though.

Parallels Desktop Lite is free if you only use macOS VMs. https://itunes.apple.com/us/app/parallels-desktop-lite/id1085114709?mt=12

VirtualBox is free.

Apr 23, 2018 5:52 AM

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Apr 23, 2018 5:56 AM in response to SuperMaup In response to SuperMaup

Get a good USB thumb drive from SansDisk or external hard drive to install Sierra onto it for when you need access to your Garmin. Be mindful, you might not be able to see your APFS volume from Startup Disk, and instead will have to use the Startup Manager to boot back into High Sierra.


Use the Option key, when possible instead of 'C' key to boot discs


The App Store may complain about installing on too new a system. If that happens, get out a Mac running an older system than Sierra to install Sierra on the thumb drive or hard drive.


In the future always keep clone backups of previous systems until you are certain all your Apps are compatible with the latest system you have installed. Sierra is available in your "Purchased history" of your App Store account.

Apr 23, 2018 5:56 AM

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Question: Install Sierra on APFS volume?