Non-UEFI limited to 2TB disk?

[Tom H]

On Sat, Feb 27, 2016 at 3:31 AM, Karl Auer <kauer at biplane.com.au> wrote:
>
> I just got a second hand desktop, went to put Ubuntu on it, and noticed
> in the BIOS that if I disable UEFI, the boot disk is limited to 2TB.
>
> Why is that? It's not a problem for this PC, I'm just curious.

32-bit limitation: The partition table of an msdos-labeled disk has a
maximum size of 2^32 * 512B = 2 TiB where 512B is the sector size;
unless you're using a disk with 4,096B sectors and your firmware can
handle this sector size.