Using openSUSE 11.4 x86_64 (no other OSes installed).
I’m aware that 4K HDDs require GPT partitioning. My question is: what should I know and what do I need to do so that the system/software recognizes this as a 3 TB HDD? Do I need to do anything? Will the system/YaST partitioning software “automatically see” the HDD as 3 TBs?
Not the 4K sector size requires GPT partitioning but the 3 TB size of the disk. I’ve never installed openSUSE on GUID partitioning except on Mac hardware but it doesn’t count, since I used MBR emulation. As far as I know - but it might have changed - only Grub2 supported booting from GPT. They might have added this feature to openSUSE Legacy Grub in the meantime, I don’t know. I would be interested in reading your report if you manage it.
Oh, that should make things easier then since the Linux kernel supports GPT. It is/used to be only a problem for booting. I don’t know how the YaST partitioner deals with GPT. But I would say it doesn’t hurt to try on a blank HD.