Jonathan Arbib

Quick solution:

mkdir /dev/pts
mount -t devpts /dev/ptmx /dev/pts

add the above code to run on bootup and make the file executable

Alternate solution 1:
Add the following at the end of your config file

extra = 'console=hvc0 xencons=tty'

Alternate Solution 2:

chmod 666 /dev/ptmx
chmod 666 /dev/null