come avviare "firefox" da sistema diverso
su sistema OLD: monto
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sudo mount /dev/sda1 /mnt/sda1
cd /mnt/sda1
sudo mount -t proc proc proc/
sudo mount -t sysfs sys sys/
sudo mount -o bind /dev dev/
sudo mount -t devpts pts dev/pts/
cd /mnt/sda1
sudo chroot /mnt/sda1 /bin/bash
+++++++++++++++++++++++++++++++++++++
su sistema NEW: monto2
----------------------
cat monto2
xhost +
export DISPLAY=:0.0
firefox
+++++++++++++++++++++++++++++++++++++
su sistema OLD
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cat smonto:
sudo umount /mnt/sda1/dev/pts/
sudo umount /mnt/sda1/dev/
sudo umount /mnt/sda1/sys/
sudo umount /mnt/sda1/proc/
sudo umount /mnt/sda1