You can make a difference in the Apple Support Community!
When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
I'm trying to add a second volume so I can boot from two different systems. I just upgraded to macOS Catalina. I'm using this article: Installing macOS on a separate APFS volume - Apple Support
I am able to create a second volume but it is not bootable. I tried this in Catalina and also recovery mode with the same results. Any help would be immensely appreciated!
iMac 27″, macOS 10.13
The installer makes it bootable. Just creating a Volume will not bless it as such in any way. It needs to have the OS installed on it to make it bootable.
I got no love from the High Sierra installer, though. It could not see the volume.
Mojave installed on the volume just fine, though.
Based on the article you linked, if you want to have High Sierra installed, you need to start with that, then create new Volumes for later OS versions.
The installer makes it bootable. Just creating a Volume will not bless it as such in any way. It needs to have the OS installed on it to make it bootable.
I got no love from the High Sierra installer, though. It could not see the volume.
Mojave installed on the volume just fine, though.
Based on the article you linked, if you want to have High Sierra installed, you need to start with that, then create new Volumes for later OS versions.
But the install on an added volume won’t be bootable.
My Catalina/Mojave Container begs to differ with you.
Or, are you saying that if you start with High Sierra on APFS, add a Volume with Mojave or Catalina, that won't boot the other two. I can't see why not since the other ways work.
Thank you so much! That was my exact experience with High Sierra too. Thus sending me down a rabbit hole. I installed Mojave per your suggestion and everything worked like a charm. Appreciate your help!
Thanks again.
Lanny wrote:
Needs to be on a separate partition, not a separate volume.
Depends.
If adding High Sierra, you will need a partition.
If you start with High Sierra, you can add Volumes to the Container.
Mojave and Catalina will install on a separate Volume in the same container without problem.
Needs to be on a separate partition, not a separate volume.
But the install on an added volume won’t be bootable.
Trying to Install macOS on separate APFS but volume is un-bootable.
