I recently have upgraded my PC, my new Motherboard (ASUS M5A99X EVO) uses UEFi instead of the regular MBR option.
I have a Ubuntu 11.10 installation that I did when I had my previous hardware (MSI MS 7267) , Ubuntu alone boots fine, and so does Windows 7, however Windows 7 is using UEFI (GPT) boot whereas Ubuntu is using MBR.
I have my OSs in separate drives, so that GRUB2 wont' get replaced by the Windows Bootloader and viceversa, as I said both OSs boot fine on their own, but to do that I have to disconnect one drive in this case the Ubuntu drive as it prevents Windows from loading.
Now my question is, How can I change/convert Ubuntu's drive so that instead of using MBR it uses GPT and allow Windows to boot?.
Preferably without reinstalling the whole system or lose any data.
And if I were to wipe the drive, How can I install Ubuntu in GPT, UEFI, whatever it is mode?.
I have used gdisk to convert from MBR to GPT, but now Ubuntu can't boot seems like grub just doesn't start.
I have re installed the OS, and the drive is GPT now by default however
grup-pc is still being used instead of
How can i make Ubuntu boot from EFI?.