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i want to go back to mojave without deleting anything from my drive. i have a 2017 macbook with only a usb-c port.

As stated above im looking for help trying to go back to mojave from catalina as easily as possible

MacBook, macOS 10.15

Posted on Jul 7, 2020 11:49 PM

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Posted on Jul 8, 2020 3:24 AM

Don't ever try this without a full backup.

You will really need to erase the drive.

It may look like a pain, but there is no other way.

Create a bootable installer on a thumb drive, and make sure you have an up to date Time Machine backup, a bootable clone of your drive or, preferably, both.


Boot from the installer, open Disk Utility, make sure that "Show All Devices" is checked, select the whole drive, and erase it.

Then quit Disk Utility, install Mojave, and, when asked, migrate the user accounts.


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Question marked as Top-ranking reply

Jul 8, 2020 3:24 AM in response to MorkZ

Don't ever try this without a full backup.

You will really need to erase the drive.

It may look like a pain, but there is no other way.

Create a bootable installer on a thumb drive, and make sure you have an up to date Time Machine backup, a bootable clone of your drive or, preferably, both.


Boot from the installer, open Disk Utility, make sure that "Show All Devices" is checked, select the whole drive, and erase it.

Then quit Disk Utility, install Mojave, and, when asked, migrate the user accounts.


i want to go back to mojave without deleting anything from my drive. i have a 2017 macbook with only a usb-c port.

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