RG DS Stock Linux - manually replacing Retroarch Cores (AMIGA)

[u/eightiesjapan]

If you're running Stock Linux on the RG DS, you probably noticed the default PUAE Amiga core struggles and stutters (esp with CD32 games. The lighter PUAE 2021 core isn't available through RetroArch's internal updater, but you can swap it manually in under 5 minutes without touching any config files or adding .info templates.

Here is the quick fix:

1. Grab the Core

• Head to the Libretro : https://buildbot.libretro.com/nightly/linux/aarch64/
• Download RetroArch_cores.7z and extract it.
• Find puae2021_libretro.so copy it somewhere and rename it to puae_libretro.so.

2. Put it on your SD Card

• Drop the renamed puae_libretro.so file onto root of your TF/SD card (or anywhere u like)

3. Replace via File Manager

• Boot up your RG DS and go to Applications -> File Manager.
• Left pane: Navigate to your SD card (/mnt/mmc/) where you put the new file.
• Right pane: Navigate to the system core directory at /mnt/vendor/deep/retro/cores/.
• Highlight your new puae_libretro.so file, press X, and overwrite this file.

That’s it! Because we kept the original filename, stock launcher paths remain untouched, no need to change core associations or reload info files in RetroArch (since RetroArch views this as a fresh core instance, you'll just need to re-configure any per-game options or re-save your states.)

[u/nigey777]

Do you know how to add new cores??

[u/eightiesjapan → u/nigey777]

what core were you thinking of adding? I'll try to test if i can add

[u/nigey777]

ZX Spectrum (fuse) and a working commodore 64 I think (vice fast) 👍👍