I specified rdinit=/bin/sh and manually booted the system (in chroot) from command line, complete with mounted filesystems, network services and X desktop. The init is still busybox's /bin/sh. The ...
I know how to fork to process. That is not a problem. But my issue is a little different. Example inittab line: ::respawn:-/usr/bin/python /path/to/script.py && /bin/sh -l -c 'chown ...