Fail to copy the iodine binary on some systems

[vitalych]

Looks like the cp command is missing.

[Lanchon]

cp is part of busybox. you can require busybox or emulate cp with cat and redirection.

however what about chmod and other commands that may be used?

this page shows that chmod is standard on user-debug builds:
https://github.com/jackpal/Android-Terminal-Emulator/wiki/Android-Shell-Command-Reference
but what about user builds?

[vitalych]

Requiring busy box sounds like the simplest thing to do.