> It even runs on just about every other micro-controller like Raspberry Pi and Arduino. Pi, yes. Arduino, no. There simply isn't enough memory, and no one's bothered to port the code, because the processor capable enough to run a general purpose multi-user OS at a useful speed.

> Just run ld /path/to/executable. ld is the loader/lilinker for elf binaries. Without ld ,you can't run bash, or ls. With ld, noexec is ignored.

Hasn't that been made a lot more difficult since 2.6?

I just tried it on my machine, running 4.2.0-rc7, and got: "./bash: error while loading shared libraries: ./bash: failed to map segment from shared object"