Yesterday a new Raspi4 (1GB) arrived and I’d like to have the OCaml toolchain for static builds running on it. Headless for now, accessible via WIFI and ssh.
Let’s go!
Prepare SD-Card
At first have a look at https://projects.raspberrypi.org/en/projects/raspberry-pi-setting-up, next download the OS image:
$ curl -Lo 2020-02-13-raspbian-buster.txt https://downloads.raspberrypi.org/raspbian/release_notes.txt
$ curl -Lo 2020-02-13-raspbian-buster.zip.sha256 https://downloads.raspberrypi.org/raspbian/images/raspbian-2020-02-14/2020-02-13-raspbian-buster.zip.sha256
$ curl -Lo 2020-02-13-raspbian-buster.zip https://downloads.raspberrypi.org/raspbian/images/raspbian-2020-02-14/2020-02-13-raspbian-buster.zip
$ shasum -c 2020-02-13-raspbian-buster.zip.sha256
2020-02-13-raspbian-buster.zip: OK
Then insert a SD-Card and flash it (I use https://www.balena.io/etcher/).
Inject ssh + wifi settings
Mount the SD-Card on a Linux-box, follow https://www.raspberrypi.org/documentation/configuration/wireless/headless.md and adjust as needed:
cat > /media/$(whoami)/boot/wpa_supplicant.conf <<EOF
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=
network={
ssid=""
psk=""
}
EOF
And enable ssh by default
$ touch /media/$(whoami)/boot/ssh
Power On! and log in
- insert the SD-Card,
- connect the USB-Power,
- plug it into an outlet.
$ ssh pi@raspberrypi
$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo apt-get dist-upgrade
$ sudo reboot
$ # sudo systemctl disable vncserver-virtuald.service
$ sudo raspi-config
$ sudo apt-get install fortunes fortunes-de fortune-anarchism vim fish mosh
🐫 OCaml
Based on https://blog.danny-willems.be/ocaml-raspberry-pi/
$ sudo apt-get install git m4 ocaml musl-tools
...
Setting up musl:armhf (1.1.21-2) ...
Setting up musl-dev:armhf (1.1.21-2) ...
Setting up musl-tools (1.1.21-2) ...
...
$ git clone https://github.com/ocaml/opam
$ cd opam
# today's master 1bab95d0d006ec08db022bc89907986b63f30883 fails, https://github.com/ocaml/opam/issues/4126
# use a known working version:
$ git checkout d6e4e4acb2a13e010631d9f27c638072030fd93d
# $ git checkout 2.0.6
$ ./configure
$ make lib-ext
$ make
$ sudo make install
$ cd
$ opam init
$ opam switch --jobs=1 create 4.10.0+musl+static+flambda
$ eval $(opam env)
$ opam install dune
Voilà!
P.S.: Be aware that uname -m is armv7l which won’t run on a Raspi
Zero or
Raspi 1 but vice versa.