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99 lines
3.8 KiB
Markdown
99 lines
3.8 KiB
Markdown
---
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level: start
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order: 40
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terms: bios not found, bios missing, firmware missing, bios error, check my bios folder, check bios folder
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---
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# When a game does not start
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Usually a BIOS file is missing or wrong.
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## 1. Check my BIOS folder { #checking-what-you-installed }
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<span id="game-wont-start-black-screen"></span><span id="my-setup-says-untested"></span>
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<!-- Words as emulators print them: snes9x bsx.cpp:1232 "BS: BIOS not found!"
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(1bcc369e), puNES src/core/fds.c:312 "bios not found" (b1758ec2), Gearcoleco
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platforms/libretro/libretro.cpp:866 "OS-7 BIOS missing" (23d0ec28), RetroArch
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intl/msg_hash_us.h:32805 "One or more firmware files are missing" (5333a7c5). -->
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Your emulator says **BIOS not found**, **BIOS missing** or **firmware
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missing**? Run the command with `--check`. It changes nothing.
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<!-- os-tabs -->
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```sh
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curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --check
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```
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Read the count line:
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```
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1/109 present (0 verified, 1 wrong hash)
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```
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- **`wrong hash`**: another region or model, or damaged.
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- **Fewer present than the total**: files are missing.
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- **A line under a file**, like `still zipped`, says the fix.
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- **`0 wrong hash`, all present**: go to step 3.
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## 2. Fix the files
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Without `--check`, it adds missing files and replaces wrong ones.
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## 3. Check the folder and the names
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- **Right folder?** [Get your files](../which-pack.md) names it.
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- **Exact name?** `scph5501.bin` and `SCPH-5501.BIN` differ.
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- **A `bios` folder inside your BIOS folder?** The installer copies those
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files up one level.
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- **BIOS setting on a subfolder, like `system/dc`?** Point it at the BIOS
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folder. Emulators add their own, like `dc/` for Flycast.
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- **A ZIP in parts, like `Pack.part1of2.zip`?** Unzip all parts into one
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folder.
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<!-- Flycast's libretro port appends "dc/" to the system directory:
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shell/libretro/libretro.cpp:2252-2253, emulators/flycast.yml. -->
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## An arcade game does not start
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It needs its BIOS set, like `neogeo.zip`, and a game set for the same emulator
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version.
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- Another MAME version's game set often fails.
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Details: [the version of each emulator](technical-faq.md#which-mame-version-do-the-arcade-bios-sets-match).
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- Run the command once. It installs the BIOS sets.
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## The BIOS is fine, the game still fails
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- **Another emulator?** Each reads the files listed on its page.
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- **A BIOS setting?** Some emulators can skip the BIOS. In PCSX ReARMed, set
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**BIOS Selection** to **Auto**.
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- **The screen says "Please insert PlayStation CD-ROM"?** The BIOS works.
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The game did not load: open its `.cue` or `.m3u` file, not a `.bin`.
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## If the command fails { #installation-script-fails }
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- **Network error:** try again later.
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- **`The clock reads ...`:** set the right date.
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- **Permission denied:** do what the message says.
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- **`No supported platform detected`:** name the folder. Not sure? Open
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RetroArch's **Settings > Directory > System/BIOS**.
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<!-- The folders RetroArch reads by default, as install.py writes them
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(_os_default_dests, _macos_retroarch_base) and the RetroArch setup page
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cites them. Steam Deck: the Flatpak build. -->
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<!-- os-tabs windows: --platform retroarch --dest C:\RetroArch-Win64\system macos: --platform retroarch --dest ~/Documents/RetroArch/system steamdeck: --platform retroarch --dest ~/.var/app/org.libretro.RetroArch/config/retroarch/system -->
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```sh
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curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform retroarch --dest ~/.config/retroarch/system
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```
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Other messages: [When something goes wrong](installer.md#when-something-goes-wrong).
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<span id="hash-mismatch-untested"></span><span id="pack-is-missing-files"></span><span id="verifypy-reports-errors"></span><span id="one-console-only"></span>
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## Next steps
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- [Get your files](../which-pack.md)
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- [Common questions](faq.md)
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