Headless operating system

https://www.tomshardware.com/news/raspberry-pi-imager-now-comes-with-advanced-options

press CTRL + SHIFT + X

I found that this only works if you have on-board WiFi

Default user: pi

Default password: raspberry

sudo passwd pi

sudo raspi-config

Interface Options –> P2 SSH

sudo raspi-config

(problems with drivers in USB dongles are common)

The error:

  nl80211: Driver does not support authentication/association or connect commands

means that the standard nl80211 doesn't support your device , you should use the old driver wext.

To correctly set up your wpa_supplicant.conf , it is better to use the wpa_passphrase command:

wpa_passphrase YOUR-SSID YOUR-PASSWORD >> /etc/wpa_supplicant/wpa_supplicant.conf

run:

wpa_supplicant -iwlan0 -D wext -c/etc/wpa_supplicant/wpa_supplicant.conf -B
dhclient wlan0

To automatically connect to your AP after restart edit the wlan0 interface on your /etc/network/interfaces as follow:

allow-hotplug wlan0
iface wlan0 inet dhcp
    wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

sudo nano /etc/dhcpcd.conf

# Example static IP configuration:
interface wlan0
static ip_address=192.168.0.30/24
#static ip6_address=fd51:42f8:caae:d92e::ff/64
static routers=192.168.0.1
static domain_name_servers=192.168.0.1 8.8.8.8 fd51:42f8:caae:d92e::1

apt-get update

apt-get upgrade

https://www.marrold.co.uk/2019/04/installing-direwolf-15-on-raspberry-pi.html

apt-get install git build-essential libasound2-dev libudev-dev alsa-utils rsyslog logrotate gpsd libgps-dev

cd /usr/src
git clone http://github.com/wb2osz/direwolf
cd direwolf
make
make install

The build procedure has changed in version 1.6. In general, it now looks like this:

Download the source code:

      cd ~
      git clone https://www.github.com/wb2osz/direwolf
      cd direwolf

Optional - Do this to get the latest development version rather than the latest stable release.

      git checkout dev

Build it. There are two new steps not used for earlier releases.

      mkdir build && cd build
      cmake ..
      make -j4

Install:

      sudo make install
      make install-conf

You will probably need to install additional applications and libraries depending on your operating system. More details are in the README.md file.

Questions?

- Extensive documentation can be found in the 'doc' directory. - Join the discussion forum here: https://groups.io/g/direwolf

Place Dire wolf config in

/etc/direwolf.conf

#
# Sample configuration for SDR read-only IGate.
#

# We might not have an audio output device so set to null.
# We will override the input half on the command line.
ADEVICE null null
CHANNEL 0
MYCALL CALLSIGN 

# First you need to specify the name of a Tier 2 server.
# The current preferred way is to use one of these regional rotate addresses:

#       noam.aprs2.net          - for North America
#       soam.aprs2.net          - for South America
#       euro.aprs2.net          - for Europe and Africa
#       asia.aprs2.net          - for Asia
#       aunz.aprs2.net          - for Oceania

IGSERVER euro.aprs2.net

# You also need to specify your login name and passcode.
# Contact the author if you can't figure out how to generate the passcode.

IGLOGIN CALLSIGN PASSWORD

# iGate information

PBEACON sendto=IG delay=0:30 every=10:00 symbol="igate" overlay=R lat=xx^xx.xxN long=xx^xx.xxW comment="144.800MHz IGate, rPi 1, RTL-SDR, 
Dire Wolf"

# Logging

LOGDIR /var/log/direwolf/

# That's all you need for a receive only IGate which relays
# messages from the local radio channel to the global servers.

http://apps.magicbug.co.uk/passcode/

adduser --system --no-create-home --group direwolf

usermod -g audio -G audio direwolf

otherwise

sudo apt-get update
sudo apt-get install cmake build-essential libusb-1.0-0-dev
cd /usr/src
git clone git://git.osmocom.org/rtl-sdr.git
cd rtl-sdr
mkdir build
cd build
cmake ../ -DINSTALL_UDEV_RULES=ON -DDETACH_KERNEL_DRIVER=ON
make
sudo make install
sudo ldconfig

Run test

rtl_test

Next we need to create a systemd service so direwolf starts on boot. We also redirect stdout and stderr to syslog, so we can treat it as a log file.

Add direwolf to the plugdev group

sudo usermod -a -G plugdev direwolf

Create direwolf.service file

nano /lib/systemd/system/direwolf.service

With following content

[Unit]
Description=Direwolf Daemon
Wants=network-online.target
After=sound.target syslog.target network-online.target

[Service]
User=direwolf
ExecStart=/bin/sh -c 'rtl_fm -f 144.8M - | direwolf -c /etc/direwolf.conf -r 24000 -D 1 -'
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=direwolf

[Install]
WantedBy=multi-user.target

Symlink the service

ln -s /lib/systemd/system/direwolf.service /etc/systemd/system/direwolf.service

Reload systemctl

systemctl daemon-reload

Enable the direwolf service

systemctl enable direwolf

Also enable the systemd-networkd-wait-online service so Direwolf starts after the network is up

systemctl enable systemd-networkd-wait-online

Earlier we configured the direwolf systemd service file to redirect all stdout and stderr to syslog. So it's easier to read we need to redirect the log entries to their own file.

Create the directory for the log files

mkdir /var/log/direwolf

Set the permissions to the correct user

chown -R direwolf:direwolf /var/log/direwolf/

Create a .conf file for rsyslog

nano /etc/rsyslog.d/direwolf.conf

And enter the following

if $programname == 'direwolf' then /var/log/direwolf/direwolf.log
& stop

Then create a logrotate configuration file

nano /etc/logrotate.d/direwolf

And enter the following. Feel free to edit the parameters to suit your needs

/var/log/direwolf/aprs.log
{
    rotate 5
    daily
    missingok
}

/var/log/direwolf/direwolf.log
{
    rotate 5
    daily
    missingok
    postrotate
        invoke-rc.d rsyslog rotate > /dev/null
    endscript
}

1. Change callsign and APRS pass

2. Change static IP

3. Change WiFi SSID and pass

4. Change pi password

5. Remove bash history