xorriso : FAILURE : Given path does not exist on disk: -boot_image system_area='/usr/lib/ISOLINUX/isohdpfx.bin'

[knitHacker]

I don't even know where to start with this error. Some guidance would be greatly appreciated. I am building a 16.04 image in a 18.04 docker image.

[kamilion]

You're missing the isolinux package.