my RPi is up from a month. Last 2-3 weeks i've only made the updates....and suddenly today i can't login via ssh. I get following:
$ ssh pi@raspberry
Connection to raspberry closed by remote host.
Connection to raspberry closed.
I have no idea, what is happend. Any ideas how to detect/solve the problem without restart and without display :)?
edit: i've connected a display, to see what is wrong and imho doesn't look pretty good :( i think, i must restart....here some pics:

This was on the first tty...so my idea was to switch to tty2 and try to login. After i entered the username, i got this:
