While trying to installing Ubuntu 14.04 as my sole operating system, I've been encountering a number of issues (Described in more depth at Ubuntu 14.04 installation crashes with "???" message after selecting drive), all of which seem to be related to GPT and RAID, both of which I know little about.
When I open GParted, I get this error message:
Upon Xing out the error message and checking /dev/sda and /dev/sdb, I see that they are unrecognized (the image below shows /dev/sda):
My laptop is an Asus Zenbook UX51Vz-XH71, which comes with two SSDs (2x128GB or 2x256GB) in an Intel Rapid Storage (aka Intel Matrix) RAID 0 configuration and uses UEFI and GPT. Here is what the Arch wiki says:
The UX51Vz comes in a variety of configurations, most of those sold in western Europe come with two SSDs (2x128GB or 2x256GB) in an Intel Rapid Storage (aka Intel Matrix) RAID 0 configuration. To install Arch Linux on the UX51Vz, you can follow the official Installation guide. Since the UX51Vz uses UEFI and GPT, make sure to also read the UEFI, GPT and UEFI_Bootloaders pages. It is recommended to use rEFInd as a bootloader and mount the EFI partition on /boot. To prepare a UEFI USB device, read UEFI#Create_UEFI_bootable_USB_from_ISO. The only way to preserve the pre-installed Windows instance is to install Arch with RAID without breaking up the RAID 0 array. See RAID with the only difference that you should not create arrays, only assemble. Note: As of BIOS version 207 on UX51VZH there is no option to reconfigure the Intel RST setup through BIOS. Once you break your array, you cannot set it up again. For Linux-only users, mdadm software raid should be a better option.
I have deleted all partition tables using GParted.