Install sdr-trunk on RPI4

[Tim Bitson]

The RPi team has released a beta version of a 64-bit Raspbian. I have successfully installed sdr-trunk v4 on a 4GB RPi and so far it seems to be working well with 2GB of free RAM. There are a few error messages when starting that I still need to work on, but it runs! I wanted to get this out to the Community so the smart folks can work on it.

Here's the steps I followed, YMMV:

-- download latest arm64 file and burn to SD/Thumb drive/ssd

https://downloads.raspberrypi.org/raspios_arm64/images/

add empty file '.ssh' to /boot

-- boot RPi and configure wifi/locale/etc

-- add required libs:

sudo apt update

sudo apt upgrade

sudo apt install default-jdk

sudo apt install x11-apps

sudo apt install rtl-sdr

sudo apt install gradle

-- enable x11:

sudo nano /etc/lightdm/lightdm.conf

add: xserver-allow-tcp=true

sudo service lightdm restart

add to .bashrc:

# enable x11

export DISPLAY=127.0.0.1:0

sudo reboot

-- install sdr-trunk 4

cd

wget https://github.com/DSheirer/sdrtrunk/archive/refs/tags/v0.4.0.zip

unzip

install jmbe 1.0.7

cd sdr-trunk

wget https://github.com/DSheirer/jmbe/archive/refs/tags/v1.0.7b.zip

unzip

cd build

gradlew clean build

cd ~/sdr-trunk

gradlew clean build

-- sdr-trunk must be run locally or via vnc:

launch vnc, connect to RPi

navigate to sdr-trunk/build/distribution/

unzip sdr-trunk-0.4.0.zip

cd bin

./sdr-trunk

it takes a while to load. It isn't very responsive, but now I have a portable scanner. More to come as I investigate use sdr-trunk 5.

[Imago Trigger]

This is great.  Thanks

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[Tim Bitson]

After more testing, it’s a bit unstable but has been running for 24 hours. Processor loading on the Pi4 is about 60% and on a 4GB Pi it uses about 50% of the memory. 

I’m still getting error messages from the Java openjfx library. Maybe someone more familiar with Java can point me in the right direction:

Loading library prism_es2 from resource failed: java.lang.UnsatisfiedLinkError: /home/pi/.openjfx/cache/13.0.1/libprism_es2.so: /home/pi/.openjfx/cache/13.0.1/libprism_es2.so: cannot open shared object file: No such file or directory (Possible cause: can't load AMD 64-bit .so on a AARCH64-bit platform)

java.lang.UnsatisfiedLinkError: /home/pi/.openjfx/cache/13.0.1/libprism_es2.so: /home/pi/.openjfx/cache/13.0.1/libprism_es2.so: cannot open shared object file: No such file or directory (Possible cause: can't load AMD 64-bit .so on a AARCH64-bit platform)

I’ve verified the files are there and I reinstalled to make sure there from the arm64 lib.

-Tim

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