установка програм

запускаю
sudo -s
./install-crossover-pro-4.1.sh
выдает
Verifying archive integrity...OK
Uncompressing CrossOver Office Professional....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

The DISPLAY variable is not set. You should either login to as root or use
the command "su" with no flags, to make sure setup has an X display to use.

делаю как написано через
su

bash-2.05b$ su
Password:
bash-2.05b# ./install-crossover-pro-4.1.sh
Verifying archive integrity...OK
Uncompressing CrossOver Office Professional....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

Setup requires an X display to run. There is a display variable set, however
you have no permissions to access the X server (:0) it points to.
Try running xhost +localhost before su'ing to root.

тоесть что надо сделать чтобы запустить установку