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Abdessamad Derraz f44ef8459e docs: state only what the code proves

Each claim in the README and the wiki now matches the code or data it
describes: line citations counted as such (93%), closed-source profiles
named, severity tied to the check mode, installs limited to files the
collection holds, and the demo labelled as a demonstration card.

2026-11-09 08:47:21 +01:00

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level, order, terms

level	order	terms
start	40	bios not found, bios missing, firmware missing, bios error, check my bios folder, check bios folder

When a game does not start

Usually a BIOS file is missing or wrong.

1. Check the BIOS folder

The emulator says BIOS not found, BIOS missing or firmware missing? Run the command with --check. It changes nothing.

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --check

Read the count line:

  0 in place, 108 missing, 1 wrong copy

wrong copy: another region or model, or damaged.
A number before missing: files are missing.
A line under a file, like still zipped, says the fix.
0 missing, 0 wrong copies: go to step 3.

2. Fix the files

Without --check, it adds the missing files the collection holds and replaces wrong ones.

3. Check the folder and the names

Right folder? Get the files names it.
Exact name? scph5501.bin and SCPH-5501.BIN differ.
A bios folder inside the BIOS folder? The installer copies those files up one level.
BIOS setting on a subfolder, like system/dc? Point it at the BIOS folder. Emulators add their own, like dc/ for Flycast.
A ZIP in parts, like Pack.part1of2.zip? Unzip all parts into one folder.

An arcade game does not start

It needs its BIOS set, like neogeo.zip, and a game set for the same emulator version.

Another MAME version's game set often fails. Details: the version of each emulator.
Run the command once. It installs the BIOS sets.

The BIOS is fine, the game still fails

Another emulator? Each reads the files listed on its page.
A BIOS setting? Some emulators can skip the BIOS. In PCSX ReARMed, set BIOS Selection to Auto.
The screen says "Please insert PlayStation CD-ROM"? The BIOS works. The game did not load, so open its .cue or .m3u file, not a .bin.

If the command fails

Network error: try again later.
The clock reads ...: set the right date.
Permission denied: do what the message says.
No supported platform detected: name the folder. Not sure? Open RetroArch's Settings > Directory > System/BIOS.

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --platform retroarch --dest ~/.config/retroarch/system

Other messages: When something goes wrong.

3.7 KiB Raw Blame History