On Wed, Aug 10, 2016 at 10:26 AM, Jose Luis Arellano <jose.4rellano@gmail.com> wrote:

This:

~/context$ ls -l $HOME/context/bin
total 8372
-rwxr-xr-x 1 pepe pepe 7982820 Aug 6 01:56 luatex*
-rw-r--r-- 1 pepe pepe 27110 Oct 6 2015 mtx-update.lua
-rwxr-xr-x 1 pepe pepe 558052 Aug 9 16:00 mtxrun*
lrwxrwxrwx 1 pepe pepe 6 Jul 26 2014 texlua -> luatex*

On the top of first-setup.sh there is

#!/bin/sh

# Takes the same arguments as mtx-update

# you may change this if you want ...

CONTEXTROOT="$PWD/tex"

and some lines from the bottom

env PATH="$PWD/bin:$CONTEXTROOT/texmf-$platform/bin:$PATH"

On my linux box I see, given that I'm installing under /opt/luatex/standalone-mkiv-test,

$ export|grep PWD

declare -x PWD="/opt/luatex/standalone-mkiv-test"

Perhaps your box doesn't set PWD correctly ?

luigi