exit after becoming god
diff --git a/onos-setup.sh b/onos-setup.sh
index 0ec2a98..4e5e8e8 100644
--- a/onos-setup.sh
+++ b/onos-setup.sh
@@ -35,9 +35,5 @@
 
 sudo echo 'export ONOS_OPT="clean debug"' > /opt/onos/options
 
-sudo su -
-
-echo 'GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"' >> /etc/default/grub
-update-grub
-
-exit
+sudo su -c "echo 'GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"' >> /etc/default/grub"
+sudo su -c "update-grub"