I wanted to try out apfs, therefore I formatted my external HDD with it. Now the partition table seems broken. How can I reinitialize the drive?
My goal is two create two HFS+ partitions, each 1TB on the drive. I decided to wait with migration to APFS as it is not supported by all my devices.
See attached screenshots the 2TB HDD shows up as a 4TB drive?
The drive is a Seagate FireCuda Compute 2TB, SATA 6Gb/s (ST2000LX001)
Best Answer
I've done this, on an SSD at least.
Probably on your drive right now there's some kind of corruption going on; I'd bet that Untitled and CRE are sharing the same UUID... I've had that happen with some interesting results.
If you want two partitions, with one as APFS:
Reformat the whole disk, creating two partitions - the one you want to be APFS should be formatted as HFS+.
Once that's done, format the HFS+ volume as APFS. That will create a container, and then the final volume will be inside that.
In the pictures, you can see I have three partitions. In the first image, it's apparent that there are four volumes, and the two under "Container disk1" are APFS.
If you want two APFS volumes:
You can set minimum and maximum sizes for the volumes too if you like.