Pues lo he hecho desde el sudo -s y me sigue dando el mismo error, lo he hecho desde el root@intel:/home/fran/Desktop# su -s ./a.sh y me dice esto.
Verifying archive integrity...OK
Uncompressing CrossOver Office Standard................................................................
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 (:0.0) it points to.
Try running xhost +localhost before su'ing to root.