Open backdoor for fixing bootloop situations

Some people have reported about a bootloop preventing the TV from starting through. The issue here often is, that the script invoked from within /mtd_exe/rc.local is getting stuck and preventing the exeDSP to start.
There are two key steps that should be considered when hacking your image, to avoid such situations or at least to open a external "backdoor" to prevent the respective script from starting.

Patching your exe.img

• Ensure that you send your scripts into the background when starting, by padding with a "&". Your changes in /mtd_exe/rc.local should look like:

export MAPLE_DEFAULT_PATH=/mtd_cmmlib/InfoLink/lib
export MAPLE_MANAGER_WIDGET_PATH=/mtd_down/widgets/manager
export MAPLE_NORMAL_WIDGET_PATH=/mtd_down/widgets/normal
export MAPLE_WIDGET_DATA_PATH=/mtd_down
export MAPLE_WIDGET_INCLUDE_PATH=/mtd_down/widgets/inc
export MAPLE_PLUGIN_DATA_PATH=/mtd_cmmlib/InfoLink/lib
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/mtd_cmmlib/YWidget_LIB
export KF_SLEEP_READ=-2
echo 30000 > /mtd_rwarea/DelayValue.txt
#touch /mtd_rwarea/DoPrintYahoo.txt
export KF_NO_INTERACTIVE=1
export KF_LOG=/dev/null;/mtd_rwarea/rc.local&
cd /mtd_exe/ 

./exeDSP

/mtd_rwarea/SamyGO.sh

• Include a check in your /mtd_rwarea/SamyGO.sh script, so that it will source and run a different set of commands, dependent on whether a specific file is detected on the USB-Drive or not. An example could look like:

#!/bin/sh

# Open back-door for fixing boot-loop situations
sleep 20            # Allow USB-stick to settle
USB="/dtv/usb/sda1" # USB mount-point

if [ -f $USB/usb.sh ];then
        echo "USB-File detected"
        $USB/usb.sh
else
        echo "Running Normal SamyGO Startup"
        /mtd_rwarea/SamyGO.sh # Run normal startup script
fi
exit