How to setup Safe Shutdown on CM4 without Wifi?

[TheBrianJ]

Hello! I recently bought a RetroFlag GPi Case 2, and a CM4 without WiFi. I'm attempting to get everything set up, but I've run into a problem: I'm trying to get the Safe Shutdown script installed, but every how-to list says to connect using WiFi to do so; however, the CM4 I am using doesn't in fact have WiFi, as I mentioned!

So how do I go about getting Safe Shutdown up and running if the system itself doesn't have WiFi? Thanks so much for the help in advance!

[mitu]

Maybe copy it on the SDcard from your PC ?
How do you intend to add ROMs/games to the system - you can maybe use the same method ?

[TheBrianJ]

@mitu

What would I copy onto the SDCard?

And I was wondering the same thing about ROMS. You have to forgive my ignorance, this is the first time I've ever touched anything Raspberry Pi related in my life so I'm completely ignorant about how any of this works.

[mitu]

What would I copy onto the SDCard?

You can copy the shutdown script itself. I assume the instructions for its installation just download it somewhere on the system and then just set up the script to auto-start. I'm not sure which tutorial/instructions are you following, if you add them here in the topic we'd be able to see how things can be installed without an internet connection.

And I was wondering the same thing about ROMS. You have to forgive my ignorance, this is the first time I've ever touched anything Raspberry Pi related in my life so I'm completely ignorant about how any of this works.

Take a look at https://retropie.org.uk/docs/Transferring-Roms/.

[TheBrianJ]

@mitu https://github.com/RetroFlag/GPiCase2-Script Here are the instructions I was given to follow.

[mitu]

To get the shutdown script installed, you can try:

• download the etropie_SafeShutdown_gpi2.py file and place it on the sdcard. Your PC will most likely see only the boot partition, so place it there.
• boot your RetroPie system, then exit EmulationStation (F4 or just exit from the menu) to access the command line. Add the following lines to the startup script with a text editor.
• open the file with nano:

   nano /opt/retropie/configs/all/autostart.sh
  

• add a line before the emulationstation command:

   sudo python /boot/SafeShutdown.py &
  

  The contents of the file should look like this:

  sudo python /boot/SafeShutdown.py &
  emulationstation #auto

• exit the text editor (Ctrl+X and then choose to save the file) and then reboot your system.

[TheBrianJ]

@mitu I tried this: I was able to enter in everything you said, but when I rebooted the system, it didn't work. I tried going back to the command line and using the nano command again, but this time I'm met with an error that says "Error reading lock file /opt/retropie/configs/all/.autostart.sh.swp: Not Enough"

[mitu]

@TheBrianJ Do you have enough free space ? The error you posted hints that your sdcard is full.

[TheBrianJ]

@mitu Definitely have more than enough room, it's a 32GB

[mitu]

@TheBrianJ said in How to setup Safe Shutdown on CM4 without Wifi?:

Error reading lock file

Delete the /opt/retropie/configs/all/.autostart.sh.swp file with

rm /opt/retropie/configs/all/.autostart.sh.swp

and try again editing the file.

[TheBrianJ]

@mitu Heya! As an update, I got it working! Worked with a friend of mine who is a Linux expert and he walked me through it step by step, which did include the steps that you had pointed out. Thanks so much for your help!