parent
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commit
730092eb28
GPG Key ID:
BC9D6AE1A3BE169A
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+++
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title = 'DMRHost on a Raspberry Pi 4 with FreeBSD'
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summary = '''multiline commentary
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olay'''
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date = '2023-08-26T21:01:16+02:00'
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#lastmod = ''
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categories = [ 'amateur-radio' ]
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tags = []
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# showBreadcrumbs = true
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# showDate = false
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# showReadingTime = false
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# showWordCount = false
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# showPagination = false
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# feed_exclude = true
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# site_exclude = true
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draft = true
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+++
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## Setup FreeBSD
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I'm using 14.0-CURRENT for this.
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<https://download.freebsd.org/ftp/snapshots/arm64/aarch64/ISO-IMAGES/14.0/>
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```console
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$ doas dd if=FreeBSD-14.0-ALPHA3-arm64-aarch64-RPI-20230825-2af9390e54ed-265022.img of=/dev/rsd2c bs=1m
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```
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Boot into the system with the serial console. Setup a dedicated user for this and
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disable the serial console after you successfully set up the network (don't forget
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to also test ssh connection).
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```console
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$ doas pw useradd mmdvm -d /home/mmdvm -m -L daemon -G dialer
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```
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Do not use the UART for kernel messages.
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Add this line to your `/boot/loader.conf` file.
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```conf
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hw.fdt.console="NO"
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```
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Reboot so the serial console can be used for the MMDVM_HS hat.
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## Install DMRHost
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You will need a few packages before we can continue. This list could
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be incomplete because I try to remember them from brain memory...
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```console
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$ doas pkg install git gcc cmake
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```
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Goto `/home/mmdvm`, build and install DMRHost.
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```console
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$ doas -u mmdvm mkdir ~/git && cd /home/mmdvm/git
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$ doas -u mmdvm git clone https://github.com/BrandMeister/DMRHost.git
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$ cd DMRHost && doas -u mmdvm mkdir build && cd build
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$ doas -u mmdvm (cmake -DCMAKE_BUILD_TYPE=Release .. && make)
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$ doas make install
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```
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Create directories and the `MMDVM.ini` file.
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```console
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$ cd /home/mmdvm && doas -u mmdvm mkdir logs && chmod 0775 logs
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$ doas -u mmdvm nvim MMDVM.ini
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```
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```ini
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[...]
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[Log]
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# Logging levels, 0=No logging, 1=Debug, 2=Message, 3=Info, 4=Warning, 5=Error, 6=Fatal
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SyslogLevel=0
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DisplayLevel=0
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FileLevel=2
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FilePath=/home/mmdvm/logs
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FileRoot=DMRHost
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FileRotate=0
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[...]
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[Modem]
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Port=/dev/cua00
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Protocol=uart
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[...]
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```
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I also add my user to the mmdvm group, so I can edit the MMDVM file.
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(Well, set file permissions to 0664)
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```console
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$ doas pw usermod <user> -G mmdvm
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```
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## Test DMRHost
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```console
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$ doas -u mmdvm /usr/local/bin/DMRHost /home/mmdvm/MMDVM.ini
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```
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You may inspect the logfile beforehand: `tail -f /home/mmdvm/logs/DMRHost.log`.
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The startup of DMRHost should end with something like these lines:
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```log
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M: 2023-08-25 11:03:05.000 DMRHost-20220617-DMRHost is running
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M: 2023-08-25 11:03:15.000 DMR, Logged into the master successfully
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```
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## Setup an rc file
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```sh
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#!/bin/sh
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# rc-script for DMRHost on OpenBSD 7.3
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# runs on FreeBSD for now
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# Dominic Reich <https://oe7drt.com>
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DMRHOST="/usr/local/bin/DMRHost"
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MMDVM_INI="/home/mmdvm/MMDVM.ini"
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DMRHOST_PID="/home/mmdvm/DMRHost.pid"
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DOAS="/usr/local/bin/doas -u mmdvm"
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LOGDIR="/home/mmdvm/logs"
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case "$1" in
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"start")
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if [ ! -d ${LOGDIR} ] ; then
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mkdir ${LOGDIR}
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chown mmdvm:users ${LOGDIR}
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chmod 0775 ${LOGDIR}
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fi
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if ${DOAS} [ ! -r ${MMDVM_INI} ] ; then
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echo "${MMDVM_INI} is not readable... aborting!"
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exit 1
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fi
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echo -n "Starting DMRHost..."
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${DOAS} ${DMRHOST} ${MMDVM_INI} &
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echo $! | ${DOAS} tee ${DMRHOST_PID} > /dev/null
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echo " done"
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;;
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"stop")
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echo -n "Stopping DMRHost..."
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if [ -f ${DMRHOST_PID} ] ; then
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kill `cat ${DMRHOST_PID}`
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rm -f ${DMRHOST_PID}
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echo " done"
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else
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echo "not running?"
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fi
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;;
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"restart")
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$0 stop
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sleep 2
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$0 start
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;;
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*)
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echo "$0 [start|stop|restart]"
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;;
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esac
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```
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