I have installed ubuntu 16.04 LTS version using a bootable usb. It has given me a lot of grief.
Earlier it was not showing me the login screen, I resolved it by disabling secure boot option in the BIOS.
Now, the os is not restarting, whenever I click on restart it gets stuck. However, shutdown is working perfectly.
EDIT
Following command doesn't work, the machine hangs after executing the command:
sudo reboot
Even
ctrl + alt + F1
doesn't work on the login screen, it doesn't show me the console.I cannot even
logout
from the system.
sudo reboot
anddbus-send --print-reply --system --type=method_call --dest=org.freedesktop.ConsoleKit /org/freedesktop/ConsoleKit/Manager org.freedesktop.ConsoleKit.Manager.Restart
? What happens when you do that? Please edit your question to explain what you did and what happened. Thanks.