I can´t install any updates. I tried apt-get clean, apt-get install -f, dpkg --configure -a. Nothing helps. I even tried to create a file or a directory in /etc/skel - it cannot be done, even with ...
I kinda screwed up the /etc directory by running: sudo chmod 417 /etc Leaving me unable to use sudo: sudo: can't open /etc/sudoers: permission denied. sudo: no valid sudoers sources foundm ...