bootiso should check for system architecture (32/64) when executing downloaded syslinux binaries

[jsamr]

A file command on a 32 bits binary looks like:

 ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=26aeb251b16634d2a2bcc54bbf9e8f6ce9f0673e, with debug_info, not stripped

Versus

ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=bf7211ae69aa20ac210bef9648e5fae8815935ab, stripped

on x64 binary.

Executing 64-bit on i386 won't work.
Executing 32 bits on x86_64 could work if support has been provided. Unfortunately, there is no standard, cross-platform way to know if one's architecture supports this file.