svet-b

The Moxa UC-8100 line of "industrial IoT gateways", such as the Moxa UC-8112-LX, can be a good solution for on-site data acquisition. To get the most out of them we want to enable them to run snaps, like https://snapcraft.io/ammp-edge. Unfortunately, as of writing, the latest v2.0 firmware provided with these devices does not support this, for two main reasons:

The pre-installed OS is Debian 8, while snapd requires at least Debian 9.
The stock kernel does not include SquashFS support, and does not have the required CONFIG_DEVPTS_MULTIPLE_INSTANCES option set.

The steps for rectifying these shortcomings are roughly as follows:

Compiling and installing a custom kernel

The following commands assume you're doing this on the Moxa device itself, though for more expedient results you'll want to cross-compile on something more powerful. Also note that in order to build the kernel you'll need a couple of GB of free space, which is more

	#!/bin/bash

	# Update npm to latest
	npm i npm@latest -g

	# Make sure Sass is installed (requires Ruby)
	gem install sass

	$SRCDIR="/opt/codebase/Grafana_Status_panel"

	#!/bin/bash

	export CODEDIR="/opt/codebase"
	export DEVGROUP="devs"
	export GH_ORIG="github.com/grafana"
	export GH_FORK="github.com/ammpio"
	export REPONAME="grafana"

	export GOROOT=/usr/local/go
	export GOPATH=$CODEDIR