Building an R5900 Busybox from sources

The R5900 is the main processor of the PlayStation 2 and this is a general guide to building an R5900 Busybox from sources. There is also a specific guide Installing an R5900 Busybox with Gentoo.

Download the source for busybox 1.28.0 and go to it's directory. Copy the file config-busybox.txt from https://github.com/Arch91/PS2Linux_v5.X_assistance/tree/main/config-files here and rename it so it will be named .config

Now do make oldconfig

followed by make

According to this configure file, everything will be installed to the folder named _install, so type make install

After that you should see that the folder _install appeared in the busybox-1.28.0 folder. This will be further used in Installing a PlayStation 2 Linux initramfs root filesystem