How to go back to macOS

[WebHeer]

I tested Asahi Linux on my M1 Mini. Now I want to go back to macOS but that doesn't work. The Mac partition is 60GB in size (to small to instal macOS) and 940GB of empty space that I can no longer approach.

How can I format the disk in such a way so that I can install macOS again.

Anyone an idea how I can do that?

[marcjuhl]

I Might Be Incorrect But, I Have Heard You Just Delete The Linux Partitions And Resize Apple Partition.

[WebHeer]

Unfortunately I can no longer enlarge the partitions. As you can see in the picture, the 1TB disk only has 524.3MB + 59.45GB and 5.37GB available. So 940GB of the disk has become unreachable. I want it back and then install macOS back on it.

[marcan]

Please read the FAQ. This is clearly explained in the partitioning guide. Apple's Disk Utility application is broken and will show you incorrect information. The 940GB isn't "unreachable", the app is just broken. It will work if you use the command line diskutil.

[WebHeer]

Unfortunately this entry is closed, but still I can't reach the 940GB no matter what I try with 'diskutil'. Can someone give me the correct instructions, so that I have access to the entire hard disk again?

[marcan]

What have you tried, exactly? Please post the output of diskutil list.

[WebHeer]

Here is a screenshot of the current situation. There is now a freespace off 994,7 free space.

[marcan]

You've deleted all the OS partitions, so just create a new one with diskutil addPartition disk0s1 apfs macOS 0.

[WebHeer]

@marcan Thank you very much, that did the trick. Problem solved. You are the best. Even Apple-helpdesk could not help me.

Kind regards, and thanks again.

[R8s6]

You've deleted all the OS partitions, so just create a new one with diskutil addPartition disk0s1 apfs macOS 0.

Thank you so much! i was in the same boat as @WebHeer (that I had removed the main macOS disk0s2 partition), i googled everywhere and try ...addPartition disk0s2 thinking disk0s2 being the new partition, which did not work.

I went on the path to create a macOS usb from windows/linux which required a lot of other messy staff. Then I saw this comment and it solved my headache instantly, thank you so so much again!