Very odd, I'm not sure what might be causing that. I assume it's a SATA disk, same behavior no matter what filesystem you try to format it with?Tried a few more items including a reboot, I can add to bug tracker if this is a new bug but I was not sure if it was just me making a mistake.
Any more tips before I bugtrack it?
fyi, wiping the disk before beginning should make it available on the GUI for setup. you can wipe disk withI actually got it working today.
I started from zero from console, deleted the partition, created new, set it up with a filesystem and mounted it.
Made sure it worked form console and then deleted everything again.
Went back into proxmox ve and it added no problem.
Weird but its working.
sgdisk --zap-all /dev/foo
(replace /dev/foo with your disk name, e.g. /dev/sda)