Thank you for your help. I have done as you suggested, but this did not change the behaviour - still would not power off.
P.S. Typing "b" did not cause to boot. I had to use Ctrl+x.
Thank you for your help. I have done as you suggested, but this did not change the behaviour - still would not power off.
P.S. Typing "b" did not cause to boot. I had to use Ctrl+x.