I just tried with my fork on a Rpi5 to create a Rpi3 image.

The warnings in creating the chroot image (your step 5) can be ignored.
xpad and usbmount fail with an error but these can be re-installed on the real Pi3 if needed.

When the final image creation (your step 6) fails with something like

device-mapper: reload ioctl on loop0p2 (254:1) failed: Invalid argument create/reload failed on loop0p2

just run it again.

@sleve_mcdichael Ahh! Thank you. I will try that. I was using tty:3 to keep things quiet on boot up.

@mitu Ah, good to know. Might be handy in the future.

Changing the image to 64 bit resolved all the building issues, so after running the RetroSetup script, no errors were logged.

@mcpat https://github.com/RetroPie/RetroPie-Setup/pull/3846

@ilpappa unfortunately I'm not the one to give advice about electronics - I don't have enough knowledge/experience.

For those interested:

https://github.com/DirtBagXon/model3emu-code-sinden/commit/168606b2c0d8139be84ab6efc1f2d2d2b0b2b198

@txutxifel @windg Pi4 Bookworm 64bit Lite I could not install Kodi from RetroPie-Setup.
I ended up just installing v20.2 manually.

sudo apt-get install kodi kodi-peripheral-joystick kodi-inputstream-adaptive kodi-vfs-libarchive kodi-vfs-sftp #kodi-vfs-nfs

@mitu Ups sorry turns out it was just me messing up my system. Both players continue to work without problems.

You can find the patches included in RetroPie's SDL in the Github repository here.

Ok so just a handful of commits at the top?

https://github.com/RetroPie/SDL/compare/adf31f6ec0be0f9ba562889398f71172c7941023...retropie-2.26.3

@voidka
I have been monitoring the GitHub page and it appears there has been an increase of work on the next image. I may be wrong but I would expect it to come out in the next month or so.

@mitu thanks, I had a look around and as I'm building on top of an existing OS was told I should be using this one.

Can you point me in the direction of the dev/stable branch? I figure I can just let it start and leave it to compile. - thanks!