I have HP Envy 6 1002TX. I updated it to Windows 8 and now I'm having trouble installing Ubuntu 12.10. I'm not really new to Linux or Ubuntu. As suggested https://help.ubuntu.com/community/UEFI, I've tried it and it still doesn't boot. In that "Identifying if the computer boots the CD in EFI mode", I can confirm that my USB boots in EFI mode. Secure boot is disabled and my laptop has Insyde's BIOS.
I tried boot repair twice and as mentioned, here is the the pastebin link http://paste.ubuntu.com/1650182/.
Although it says I have Windows 8 installed in the MBR of /dev/sda, I remember wiping Windows 8 fully. Currently I have only one OS and that is Ubuntu 12.10. (I still regret paying $15 for Win 8 upgrade). I have tried searching for the same question or solution but haven't been able to. After I use boot-repair and it says boot .efi file from sda7/ & I do so in BIOS and this is what I get.
error: disk`,msdos5' not found grub rescue>_