Booting/Building to >2tb drive on non-EFI systems

Solution Unverified - Updated -

Issue

When trying to build a system on a non-EFI system (old BIOS) with a > 2tb drive and a GPT partition, anaconda errors saying that the entire drive needs to be formatted.

The following or similar is declared in the %pre kickstart with the clearpart entry removed:

/usr/sbin/parted -s /dev/sda mklabel gpt

Selecting any reformat option option will cause it to fail.

Is this possible to do?

Environment

Red Hat Enterprise Linux 6.x

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