vzctl set 115 --diskspace 16G:18G --save    

vzlist 
vzctl enter <ID>

• /etc/init/tty1.conf

# tty1 - getty
#
# This service maintains a getty on tty1 from the point the system is
# started until it is shut down again.


start on stopped rc RUNLEVEL=[2345]

stop on runlevel [!2345]

respawn
exec /sbin/getty -8 38400 tty1