Acquiring system firmware one by one is incredibly tedious. Most enthusiasts look for a verified "Full BIOS Pack" to fix all system requirements in a single download.
You can do this by plugging your Batocera drive into a Windows/Mac PC (accessing the SHARE partition) or by booting Batocera and pressing F1 on your keyboard to open the built-in File Manager. Locate the Folder: Navigate to the /share/bios/ directory. full bios batocera link
Explain how to without losing your BIOS files. Let me know which system you're trying to set up! Acquiring system firmware one by one is incredibly tedious
Which is giving you trouble? (e.g., PS2, Saturn, Dreamcast) What error message or behavior are you seeing? What version of Batocera are you running? Locate the Folder: Navigate to the /share/bios/ directory
BIOS files are copyrighted software. Distributing or downloading them without owning the original console may violate copyright law in your country. This post does not provide or link to any copyrighted BIOS files. Always dump your own BIOS from hardware you own, or verify that your jurisdiction allows archival copies.
To build your collection safely and legally, you have two primary routes: 1. The Legal Route: Dumping Your Own Files
If you are upgrading to newer builds of the operating system (such as Batocera 39 through the current Batocera 43+ iterations), certain emulators require structural changes. Dropping all files directly into the root root /bios/ folder may break system recognition for specific platforms: systems:ps2 [Batocera.linux - Wiki]