Anyone knows if we can get GPT boot??
No, you can't get proper UEFI boot on the Insyde bios (at least on my DV8) even with a hacked bios to enable UEFI and/or recreating the HP_Tools partition. I've tried. The best you can do is:
- Use Clover (MBR install) on USB to boot each O/S in UEFI mode, install full GPT disk and UEFI capable (Windows 8.1, Ubuntu 14.04, OSX 10.9 for me)
- Install Clover with UEFI options but also need the Clover boot sector option installed to protective MBR in GPT
- Insyde BIOS boots MBR that loads Clover UEFI that then loads your O/S in UEFI mode.
I think the big issue is that there is no NVRAM or proper NVRAM support in Insyde's "hybrid" BIOS and this is needed for storage of the boot options, etc. Occasionally I've been thrown into the BIOS screen that let's you view and set these boot options but it is always blank and you can't set anything. IMHO, the Insyde UEFI support was broken and that is why they locked it out from the BIOS.