This article is Written by: Albert Gutiérrez Muñoz.
This article is a how-to guide explaining how to install ZimaOS on older BIOS-only PCs by using Clover to emulate a UEFI environment, even though ZimaOS officially targets UEFI motherboards for better performance and disk capacity support.
The main content walks through requirements and step-by-step procedures: preparing two USB sticks (one for Clover, one for the ZimaOS installer), using Balena Etcher to create a bootable ZimaOS USB, and using BDUtility.exe plus a custom config.plist to set up Clover on the first USB. Then it shows how to set BIOS to boot from USB, start Clover, plug in the ZimaOS installer USB, choose “Boot ZimaOS from EFI,” run through the installer questions, remove only the installer USB at the end, and finally boot into the newly installed ZimaOS on a BIOS machine.
The original page link is: Install ZimaOS over BIOS
Thanks to Albert’s work, and you are welcome to test this method to install ZimaOS on your old BIOS machine. Look forward to your feedback.