I am struggling to finalize my attempt to run Ubuntu 13.10 alongside Windows 8 on my new Sony Vaio Pro. After long hours of research I feel I am stuck.
I was booting from a USB, let me outline what I did (apologies if it's too detailed)
Before the installation:
- deactivated Secure Boot
- stayed in UEFI boot mode
- deactivated Fast Startup
Initially, when I booted from the USB (in the EFI mode), I got a kernel error right away. Then I:
- pressed e to enter grub after booting
- added in grub
libata.force=noncqat the end of the line starting with
This solved the problem and the installer could run. (Apparently it has something to do with the SSD.)
During the installation I created three partitions, all of them as logical partitions, the first two as EXT4.
I know I should avoid having two /boot/efi partitions, so I just left the Windows 8 one as it was.
The installation finished successfully. Afterwards, the computer would boot into Windows 8 straight away. I used the Live USB to install Boot Repair and followed the instructions given by community/Boot-Repair
Once running Boot repair, the pop-up window said there were WinEFI files detected, and asked me whether I would like to proceed via changing them or not. During the first trial, I said "yes". The link produced was: ttp://paste.ubuntu.com//6726194. After that even Windows 8 stopped booting, and the error is that no operating system was found.
As suggested by the Boot repair program itself, I went through the procedure again, and this time I pressed "no" when prompted about the WinEFI files. The link produced was: http://paste.ubuntu.com//6726299. Unfortunately, again it didn't help and I can't boot either of the operating systems. The computer either suggests recovery for Windows or entering BIOS.
I tried changing the booting options to Legacy from UEFI, but this didn't help.
I would be really grateful for any hints.