I just installed Ubuntu, selecting Erase disc, it gives me a warning about GPT but was able to install Ubuntu.
I opened up gparted again and this time, without error.
Last time I installed ubuntu on other machines, I get /boot with ext3 or ext4 on that partition. This time, I get /boot/efi with FAT32. Is this normal? FAT32 for /boot/efi ?
Currently, I'm tring to figure out how to install my machine's NVIDIA Optimus driver, found on http://ubuntuforums.org/showthread.php?t=2101540
If this would work, then it's bye-bye win7 in this machine. Else, I'll be back with a dual boot. But this time, I'll use gparted to repartition the hard drive ready for Win 7 (without the system reserved) to install and then Ubuntu as 2nd OS.
I won't ditch Win7 in this machine until all features in this laptop is usable or working on my Ubuntu install.
I won't mark this as solved yet. Not until my other problem is solved, or when after reinstalling Win 7 and able to dual boot with Ubuntu.