I have an Ubuntu Edge E320, and when I got it, I remember hours of hugs frustration because it was very difficult to get an OS onto it. Eventually, I made to install Ubuntu 12.10. I updated to 13.04 in April - no trouble there.
After the new update to 13.10, the BIOS won't find the OS any more. I just get the message
Operating system not found. I have re-installed Ubuntu entirely about 3 times now, then install Linux Mint 15, also 2 times, and every time the result is the same.
I have also tried to manually install GRUB, to force it into an UEFI-compliance mode, but no luck there.
The partition table is GDT. I have
fat16, giving it the
uefi_boot flag. I mounted
/boot/efi. Re-installed grub,
grub-install, etc etc. I have tried 3 tutorials so far, all with the same result.
Long story short, I'm really desparate. I really need this notebook for university, and that'll start in a few hours. Been at this all night.