Couldnt get a file descriptor referring to the console

Since etch is out I get this message during an upgrade (I'm still using sarge):
Couldnt get a file descriptor referring to the console
I only can stop it by pressing STRG+c

What is wrong there?

 

Take a look here: http://www.linuxquestions.org/questions/showthread.php?t=515144

 

I've got the lastest version but I don't understand "iF"
server01:/# dpkg -l|grep console

I've got /dev/console and /dev/tty files.

I've done in CLI not in a GUI.