The safety list names the save folder, every install command shows its Windows form, first install reads the last line of a run, the FAQ answers zip or unzip and the arcade version rule, and each page keeps one name.
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Common questions
Do I need BIOS files?
For many consoles, yes: PlayStation 1 and 2, Saturn, Dreamcast, Neo Geo and many home computers. For NES or Super Nintendo cartridges, usually not. What is a BIOS?
How do I know which BIOS I need?
Run the command with --dry-run. It lists what it would install and changes
nothing.
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --dry-run
Your setup's page lists every file.
Do I need every file of a console?
No. A console often has one BIOS per region. The ZIP holds them all. To keep
only yours, add your region, like --region us.
Zip or unzip?
Unzip the ZIP you downloaded once, into the folder your setup's page names.
Leave the ZIP files inside it as they are, like neogeo.zip. Arcade emulators
read them zipped.
Does a BIOS work on every setup?
The same file usually works everywhere. Some setups also check the version and
report one they do not expect. Arcade files like neogeo.zip change with the
emulator. The command installs the version your setup expects.
Can I play without the BIOS?
Sometimes. Some emulators carry a stand-in for it. Some games then glitch or do not start.
Is the command safe?
- It checks the installer's fingerprint first. If it does not match its expected fingerprint, it stops.
- It checks each file before saving it.
- It writes in your BIOS folder. For some emulators it also adds files to your save folder.
- It never changes or deletes a game or a save.
- It keeps any file it replaces in a
retrobios-backupfolder, next to your BIOS folder.--restoreputs it back (details).
Read the script first: install.sh, install.ps1 and install.py. Details: How the installer checks itself.
Windows or my antivirus blocks the command
Download the ZIP of your setup instead, from Get your files. It holds the same files.
Can I run it again?
Yes, to update. It downloads only what is missing or wrong.
Fill an SD card from a computer?
Yes. Name your setup and the BIOS folder on the card. On Windows, E: stands
for the card.
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh \
| sh -s -- --platform retroarch --dest /path/to/sdcard/retroarch/cores/system
Why is a file missing from the ZIP?
Some files come with the emulator. The ZIP leaves those out.
Required or optional?
- Required: the emulator does not start games without it.
- Optional: games start, with small differences, like no start-up screen.
My game shows a black screen
Most of the time, a BIOS file is missing or is the wrong version. When a game does not start shows how to check.
Is this legal?
Laws differ by country, and nothing here is legal advice. Details, and how to ask for a file to be removed: Is it legal?