Lakka

Lakka is a pre-configured Linux distribution based on LibreELEC that comes with RetroArch installed. Lakka is primarily for single-board computers (SBCs) such as the Raspberry Pi.

BIOS

Because Lakka uses RetroArch under the hood, the instructions are generally the same as RetroArch. By default, the Lakka BIOS directory is /storage/system/:

Lakka (Linux)

You can copy ROMs from a USB drive named "USB-Drive" like this:

igir copy extract test clean \
  --dat "https://raw.githubusercontent.com/libretro/libretro-database/master/dat/System.dat" \
  --input /media/USB-Drive/BIOS/ \
  --output /storage/system

ROMs

Lakka has a roms folder at /storage/roms/ that is used by default:

Lakka (Linux)

You can copy ROMs from a USB drive named "USB-Drive" like this:

igir copy zip test clean \
  --dat "/media/USB-Drive/No-Intro*.zip" \
  --input "/media/USB-Drive/ROMs/" \
  --output "/storage/roms/" \
  --dir-dat-name \
  --dir-letter \
  --no-bios