I had windows 8.1 in the SSD of my notebook with UEFI. I installed Ubuntu 13.10 in the HD.
After rebooting, the PC went directly to windows. I boot into the live cd of ubuntu and executed Boot-repair. Only that after that, i could't boot into anything that the system show the following error : "no such device : xxxxx-xxxxx-xxxxx-xxxxx , grub rescue".
But then, after changing setting on the BIOS, I found that after enabling and after rebooting desabling the secure mode I would see the grub working normally, showing both the OS's.
The only problem is after i reboot the system after selecting the OS in the GRUB screen, the error "no such device" is shown again, and for me to get into any OS again I need to Enable and Disable the secure mode on the bios .
Any suggestions ?
Sorry for my bad english. :)