Implementing a KIOSK like Appliance Without Windows Manager in SUSE Studio

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When building a KIOSK like appliance, in some cases you may want to not have any window manager. This cases include when your application can get fullscreen and it is a single window application. You do that by editing the /etc/inittab file and the .bashrc file on the user home dir.

/etc/inittab

# The default runlevel is defined here
id:3:initdefault:

# First script to be executed, if not booting in emergency (-b) mode
si::bootwait:/etc/init.d/boot

# /etc/init.d/rc takes care of runlevel handling
#
# runlevel 0  is  System halt   (Do not use this for initdefault!)
# runlevel 1  is  Single user mode
# runlevel 2  is  Local multiuser without remote network (e.g. NFS)
# runlevel 3  is  Full multiuser with network
# runlevel 4  is  Not used
# runlevel 5  is  Full multiuser with network and xdm
# runlevel 6  is  System reboot (Do not use this for initdefault!)
#
l0:0:wait:/etc/init.d/rc 0
l1:1:wait:/etc/init.d/rc 1
l2:2:wait:/etc/init.d/rc 2
l3:3:wait:/etc/init.d/rc 3
#l4:4:wait:/etc/init.d/rc 4
l5:5:wait:/etc/init.d/rc 5
l6:6:wait:/etc/init.d/rc 6 

# what to do in single-user mode
ls:S:wait:/etc/init.d/rc S
~~:S:respawn:/sbin/sulogin

# what to do when CTRL-ALT-DEL is pressed
ca::ctrlaltdel:/sbin/shutdown -r -t 4 now

# special keyboard request (Alt-UpArrow)
# look into the kbd-0.90 docs for this
kb::kbrequest:/bin/echo "Keyboard Request -- edit /etc/inittab to let this work." 

# what to do when power fails/returns
pf::powerwait:/etc/init.d/powerfail start
pn::powerfailnow:/etc/init.d/powerfail now
#pn::powerfail:/etc/init.d/powerfail now
po::powerokwait:/etc/init.d/powerfail stop

# for ARGO UPS
sh:12345:powerfail:/sbin/shutdown -h now THE POWER IS FAILING

# getty-programs for the normal runlevels
# «id»:«runlevels»:«action»:«process»
# The "id" field  MUST be the same as the last
# characters of the device (after "tty").
1:2345:respawn:/sbin/mingetty --autologin tux --delay 1 tty1
3:2345:respawn:/sbin/mingetty tty3
4:2345:respawn:/sbin/mingetty tty4
5:2345:respawn:/sbin/mingetty tty5
6:2345:respawn:/sbin/mingetty tty6
#
#S0:12345:respawn:/sbin/agetty -L 9600 ttyS0 vt102
#cons:1235:respawn:/sbin/smart_agetty -L 38400 console

#
#  Note: Do not use tty7 in runlevel 3, this virtual line
#  is occupied by the programm xdm.
#

#  This is for the package xdmsc, after installing and
#  and configuration you should remove the comment character
#  from the following line:
#7:3:respawn:+/etc/init.d/rx tty7


# modem getty.
# mo:235:respawn:/usr/sbin/mgetty -s 38400 modem

# fax getty (hylafax)
# mo:35:respawn:/usr/lib/fax/faxgetty /dev/modem

# vbox (voice box) getty
# I6:35:respawn:/usr/sbin/vboxgetty -d /dev/ttyI6
# I7:35:respawn:/usr/sbin/vboxgetty -d /dev/ttyI7

# end of /etc/inittab

/home/tux/.bashrc:

while true
do
WINDOWMANAGER=/home/tux/bin/start.sh startx
done