Difference between revisions of "Open backdoor for fixing bootloop situations"


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(/mtd_rwarea/rc.local - /mtd_rwarea/SamyGO.sh missed on)
(updated rc.local to /mtd_rwarea/SamyGO.sh)
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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.
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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_rwarea/SamyGO.sh''' is getting stuck and preventing the exeDSP to start.
 
<br>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.
 
<br>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.
 
<br>
 
<br>
 
== Patching your exe.img ==
 
== 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:
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*Ensure that you send your scripts into the background when starting, by padding with a '''"&"'''. Your changes in /mtd_rwarea/SamyGO.sh should look like:
 
  export MAPLE_DEFAULT_PATH=/mtd_cmmlib/InfoLink/lib
 
  export MAPLE_DEFAULT_PATH=/mtd_cmmlib/InfoLink/lib
 
  export MAPLE_MANAGER_WIDGET_PATH=/mtd_down/widgets/manager
 
  export MAPLE_MANAGER_WIDGET_PATH=/mtd_down/widgets/manager
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  #touch /mtd_rwarea/DoPrintYahoo.txt
 
  #touch /mtd_rwarea/DoPrintYahoo.txt
 
  export KF_NO_INTERACTIVE=1
 
  export KF_NO_INTERACTIVE=1
  export KF_LOG=/dev/null''';/mtd_rwarea/rc.local&'''
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  export KF_LOG=/dev/null''';/mtd_rwarea/SamyGO.sh&'''
 
  cd /mtd_exe/  
 
  cd /mtd_exe/  
 
   
 
   

Revision as of 09:16, 6 December 2009

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_rwarea/SamyGO.sh 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_rwarea/SamyGO.sh 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/SamyGO.sh&
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