I am having some problems with the installation of Ubuntu 12.10 on my Sony Vaio S laptop.
I currently have Windows 8 installed as UEFI, and I have disabled Secure Boot.
I have downloaded the Secure Ubuntu as described in this guide, and it is booting from a USB stick just fine.
But whenever I try to install Ubuntu, I am greeted with this window:
If I select "Something Else", I can see which partitions Ubuntu has detected:
I want to install Ubuntu as a side-by-side installation on the ext4-formatted partition, but I do not have the option to do so. Any ideas?