The problem is, that
DiskUtil only shows you the Volumes on already partitioned disks. Just select
Show all devices. Now instead of the Volume select the device you want to partition and
GUID will be offered.
I was able to get the APFS and GUID scheme option by deleting the MBR
- Open a Terminal
- Find out which disk is your target:
- Unmount the disk:
diskutil umountDisk /dev/disk# with
# being the number of the drive you determined in step 1 (e.g.
- Delete the MBR:
dd if=/dev/zero of=/dev/disk# bs=512 count=1
If you open DiskUtil now you will be offered APFS
- Be aware that you are deleting all partitions from the drive
- Be careful when selecting the disk