I've done this post as a result of reading https://help.ubuntu.com/community/UEFI. Just a note on my experiences with a Gigabyte motherboard (GA-H61M-S2PC 2.0 with 8GB memory) and installing Ubuntu 12.04.2. The UEFI BIOS does not appear to have parameters for Quickboot/FastBoot or Intel Smart Response Technology (SRT) or Secure Boot. Do these parameters have other aliases?
I intended to only have Ubuntu on the PC's hard disk. What are the advantages of UEFI when that is the case?
I installed 12.04.2 64 bit from a USB stick created by Startup Disk Creator. But it did not pick up (lsusb did not show it) my Logitech Webcam properly for use in Skype, set up Virtual Magnifying Glass properly, and Wine has to have a 32 bit prefix setup with /etc/environment modified appropriately.
So I tried to install 18.104.22.168 32 bit from a USB stick (created by using Startup Disk Creator). However, BIOS would not let me as it said that it does not have a bootloader: interestingly the BIOS shows that it is a UEFI device. This seems to contradict the article http://web.dodds.net/~vorlon/wiki/blog/SecureBoot_in_Ubuntu_12.10/ which states "And as part of our committment to enabling new hardware on the current LTS release, we will be backporting this work for inclusion in 12.04.2." (though does that mean that it will be done sometime after the release of 12.04.2 in February 2013?). I was able to install 12.04.2 32 bit from a DVD, presumably because the BIOS did not show it as UEFI. [ -d /sys/firmware/efi ] && echo "EFI boot on HDD" || echo "Legacy boot on HDD" (from https://help.ubuntu.com/community/UEFI) shows that the HDD is Legacy boot.