I have a Lenovo B590, I wanted to upgrade from Ubuntu 14.04LTS to Ubuntu 15.04. Two times upgrading stopped (last time stayed 2 hours without showing any evolution in the terminal). I forced the shut down (10sec on the button). Afterstarting it again it opens only until the list below.
-Ubuntu -Advanced options for Ubuntu Memory test (memtest86+) -Memory test (memtest86+, serial console 115200) -Ubuntu 14.04.1 LTS (14.04) (on /dev/sda1) -Advanced options for Ubuntu 14.04.1 LTS (14.04) (on /dev/sda1) I know it usualy carries on until showing the desktop, but now it just stops at this point. What should I do? Thank you!