I have a Lenovo u410 ultrabook. It's sata scheme consists of a 30gb SSD and a 1tb hdd in a raid0 with intel rapid start technology. I removed IRST and disabled the raid0. I want to install ubuntu on the ssd and /home on the 1gb hdd. I foolishly erased the efi partition on the 1tb and attempted to recreate it by formatting the ssd and creating a new GPT partition table. I made a 250mb fat32 partition (/dev/sda1) and filled the rest ~24gb with an ext4 partition (/dev/sda2)
I made a live USB using a 12.04.2 iso and universal usb installer. The installation completes fine however at the end I get an error "Failed to install grub-efi to /target/ the system will not boot" I tried to open terminal and update grub however it's not there and when trying to install grub-efi from the repo I get flagged for missing a lot of dependencies. Ubiquity crashes after the error message.
I had success a few months ago installed 12.10 using my friends usb cd drive however I broke the system and cant be down until I next see him. Is there a huge difference in 12.10 and LTS that would stop this install from working smoothly?
My net goal is to have Ubuntu running on the machine with steam (tf2 and bastion) and eclipse IDE. If 12.10 is better suited, and can solve this efi issue then I'll gladly install that however from my understanding LTS would be more stable and still run the modern updates of Quantal.
tl;dr Will 12.10 install grub-efi flawlessly? and if not how can I install grub-efi from the live usb onto a solid state drive /dev/sda with efi boot on /dev/sda1, ext4 mounted as root on /dev/sda2, and /home on the hard disk /dev/sdb2?
Conclusion: LTS wasn't capable of handling the uefi environment. Downloading and installing 12.10 worked flawlessly. Raring worked fine too, however it was unstable with the drivers necessary for steam.