New Install Of Shutdowncheck Script Not Working

[RussellS]

Hi, I have an ATXRaspi running on a RPi 3 B+ Volumio music player (Debian based) and has been running very well for quite a few years. I recently, rather foolishly, did an OTA Volumio software update to the latest version which completely removed the 'shutdowncheck.sh' script. So I re-installed the script using option 2 (Install POLLING based script /etc/shutdowncheck.sh (classic)) but the power button isn't working correctly.
I have checked that the shutdowncheck.sh script is running which it is but if I connect a monitor up I am getting the following 3 lines continuously scrolling up the screen:

rc.local[729]: /etc/shutdowncheck.sh: line 32: [: =: unary operator expected
rc.local[729]: /etc/shutdowncheck.sh: line 36: [: =: unary operator expected
rc.local[729]: cat: /sys/class/gpio/gpio7/value: no such file or directory

When I set it up the first time a few years ago I remember having some issues but that was due to not being able to get the interrupt based script to work but once I reverted to the polling based script everything worked fine. So I don't know why I'm having this issue now. From what I understand, if you are just using the polling based script then you don't need to install RPi.GPIO so could you confirm that this is correct.

Does anyone have any advice on where the problem could lie please.

Many thanks

[Felix]

So you pressed the AZ-5 button and didn't make a backup of your nuclear reactor first... no sweat, we all do it in that exact same sequence

Looks like the GPIO package is not installed on your Pi, check in here:

/sys/class/gpio/

[RussellS]

So you pressed the AZ-5 button and didn't make a backup of your nuclear reactor first... no sweat, we all do it in that exact same sequence

Yeah, I know, I had a moment of madness.

Looks like the GPIO package is not installed on your Pi, check in here:

/sys/class/gpio/

I did try installing the GPIO package but it still didn't work so I'm not sure where to go now.
I'm away from home working this week so I will have another go at the weekend and try again. I may try going back to the earlier version of Volumio to test as I know that was working.

[RussellS]

Well I appear to have made some progress with this issue although I haven't as yet resolved it.

So I re-installed the earlier version of Volumio (v3.449) and then installed the shutdowncheck.sh script and everything worked again as it had done before. I made a careful note of the steps I took to achieve this working system which was:

Install RPi.GPIO
Reboot
Install shutdowncheck.sh
reboot

I then replicated the exact same steps with the later Volumio version (v3.779) on a fresh SD card and this didn't work and acted as I reported in my original post.

The original working version was running kernel version 5.10.92 and the later non working version is running kernel version 6.6.56 and after a lot of internet searching it appears that as of kernel version 6.6.xx the RPi.GPIO is no longer working as it was and the gpio pins are now numbered differently. There are numerous posts regarding projects that rely on GPIO access no longer working since updating the Rasbian OS.

Here is a quote from a 'Stack overflow' post:

Assuming you have kernel version higher 6.6 and higher, gpio pins are numbered differently. Instead of value 4 for GPIO PIN 4 use 516, for GPIO PIN 17 use 529. All gpio pin numbers can be found in /sys/kernel/debug/gpio

I am still investigating this and looking for a solution but I thik that anyone trying to use an ATXRasPi on the latest OS versions will be having issues with the shutdowncheck.sh script.

If I find any solutions I will report them here.

[Felix]

Thanks for the update, I just don't get how these releases are completely breaking the previous software versions. Face palm to those who do things like that, imagine how many people like you spend how many man hours trying to figure out the problem and solution to it. I bet it's a person's lifetime worth of time added together. Because of a simple renumbering. So collectively we can say they killed someone (young or old, doesn't matter). They still have the electric chair here in a few states :-P