I installed Ubuntu 14.4 (64bit) alongside the pre-installed windows 8.1 (64bit) on my laptop Dell Inspiron 7548 around 1 month ago (UEFI partition). For this purpose I used liveUSB according to tutorial (http://startubuntu.ru/?p=104328).
Everything worked good and I was able to switch between OS. Recently, I tried to boot my laptop and received next massage on the screen:
GNU GRUB Version 2.02~ beta 2-9
Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists possible device or file completions.
grub>_
When i boot and press F12 i can choose OS, so Windows is operating good, but the same problem with GRUB appears when I try to load Ubuntu.
So, i boot my laptop using the LiveUSB and choose "Try Ubuntu". According to procedure described in Boot-Repair I received next information http://paste.ubuntu.com/11392466/ I don't know why sda7 (swap) is detected, but sda8 (as was ext4 a few weeks ago) not detected (I can show print-screen)
How can I fix it? How can I load Linux ? Will be very grateful for any help.