It crashes when building fs:

[peggy-48]

I will show what it's actually shouting to me though (using UBUNTU 22.04 jammy jellyfish):
rm -f bin/rootfs.img bximage bin/rootfs.img -hd=10M -imgmode=flat -mode=create -q Unknown option: -mode=create make: *** [Makefile:80: fs] Error 1

[SilverRainZ]

It seems that bochs has break changes on its command line arguments, the -mode option should be replaced by something else.

[SilverRainZ]

#29 (comment) may help.

[peggy-48]

But by what