BIOS -> GPT -> Win7 + FreeBSD

Seeker · Jan 18, 2012

Win7
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Q. Can Windows 7, Windows Vista, and Windows Server 2008 read, write, and boot from GPT disks?
A. Yes, all versions can use GPT partitioned disks for data. Booting is only supported for 64-bit editions on UEFI-based systems.
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On BIOS-based system, by using gpart, to create GPT hdd layout, is it possible to make Windows 7 64bit, boot as FreeBSD can?

For FreeBSD:

Code:

# gpart create -s GPT ada0
# gpart bootcode -b /boot/pmbr ada0

Create slice that will ONLY containt GPT bootstrap code
# gpart add -s 64k -t freebsd-boot ada0
In that slice 1, above, now put bootstrap code /boot/gptboot for UFS
# gpart bootcode -p /boot/gptboot -i 1 ada0

I would like first 2 slices for Win7 and $N others for FreeBSD.

Long ago, GPT meant no dualboot.
Is it still case now?
If it is, GPT itself have onetime boot options, so via it I can select which slice to boot, thus selecting OS

BIOS -> GPT -> Win7 + FreeBSD

Seeker