Comment # 34 on bug 1020283 from Thiago Macieira

(In reply to Martin Wilck from comment #32)
> When plymouth switches to text mode (an indication that some critical error
> message was seen), the prompt may be hidden between other system output. I
> have this very often. You can normally simply type the password (you should
> see a "*" for every key stroke on the text console).

I specifically tested this and it did not work. I typed my password blindly and
pressed Enter, and nothing happened. In fact, Ctrl+Alt+Del did not work either,
and the Caps Lock LED did not come on, as reported on comment #25. Alt+SysRq,B
was required to reboot.