[ubuntu] grub lets me boot windows 8, but selecting ubuntu hangs

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http://ubuntuforums.org – I purchased a new sony viao pro with windows 8 pre installed. I tried to install ubuntu 13.10 to dual boot with windows 8. I added a 300MB partition as /boot and a 4gb partition as swap and a primary partition as /. That is along with the existing windows partitions which I left. The installation didn't set up grub correctly, so I followed the boot repair steps here https://help.ubuntu.com/community/Boot-Repair using my bootable usb thumb drive - booting into Ubuntu from the thumb drive worked fine. Boot repair suggested that I disabled secure boot in the bios and try again so I did. This (Hardware)