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libretro/ports/tools/README.md
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Abdessamad Derraz 5db889f538 fix: end handheld runs that lose their input
Start + Select now kills a sentinel the launcher owns, and the launcher
asks the interface to stop, so a running install still writes its result.
A mapper that dies, a chvt the compositor refuses, a terminal app that
cannot open and a read-only card each end the run or hand over to the
next route instead of a console waiting for a button. muOS starts
gptokeyb2 with -X and keeps muxterm off the pad so Y opens the options.
2026-10-23 18:21:45 +02:00

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Markdown

# RetroBIOS in the Tools menu
Copy `RetroBIOS.sh` and the `retrobios` folder next to the other tools:
| System | Folder | Menu |
|--------|--------|------|
| ArkOS, dArkOS | `tools` on the EASYROMS partition (`/roms/tools`) | Options, Tools |
| ROCKNIX, JELOS | `/storage/.config/modules` | Tools |
| AmberELEC | `/storage/.config/distribution/modules` | Tools |
It checks the BIOS folder against the files its emulators read and installs
the missing ones: downloaded with a network connection, or from a pack copied
into the `retrobios` folder without one.
Controls: D-pad to move, A or Start to choose, B or Select to go back, X to
tick a system, Y for the options, L1 and R1 to page. To quit, hold Select, then press Start: Start pressed
first would also choose the line in focus.
ArkOS has Python 3.7, older than the installer needs: RetroBIOS uses the
Python runtime the RetroBIOS PortMaster port downloads, so start that port
once first.