Comment 33 for bug 1552539

> Martin, we have always mounted the swap partition from the live cd to make sure we have enough memory to operate.

That's not a good justification as installation has to work as well if there are no swap partitions on the hard disk.

> Why would we want to disable that now

The change above didn't disable that -- we just enable swap in the initrd now, via a direct "swapon" instead of adding them to fstab. (See the above notes for the reason).

> and *only* for GPT partitioned disks?

This isn't related to GPT vs. MBR at all, both the bug and the fix apply to both.