I am running ubuntu Mate 14.04 Lts and just recently I have not been able to boot with the grub boot manager. When I hit enter to load ubuntu, my screen freezes at the boot menu. I am able to login by booting in recovery mode and then pressing resume. I am worried that my boot menu will not work and would appreciate any help in finding out why this is happening and how I can get my system stable again.
sudo update-grub
after logging in and see if that does anything. Are all of your partitions bootable?