16 Feb
2018
16 Feb
'18
6:32 p.m.
On Thu, Feb 15, 2018, 4:18 PM Stephen John Smoogen smooge@gmail.com wrote:
The only other thing I can think of is that the disk was already formatted to GPT. In that case it has to be EFI. [I had a disk which was GPT partitioned and removing that was quite a challenge as I had done a 'dd if=/dev/zero of=/dev/sda bs=512 count=10' and it still kept coming up as GPT. I believe I had to run a different disk command to really clean it.]
GPT has primary login at drive start, and backup location at drive end. To remove it requires wipefs -a /dev/ and it will remove the signature found in both primary and backup.
Chris Murphy