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henko152 · 22-09-2024, 10:29

I'm struggling with the Installation of OpenCPN on a headless Raspberry Pi.

Questions

Is it possible to install OpenCPN headless and access through other devices?
If so, can you help me identify me error in the installation process?

System

Rasperry Pi 4
4 GB RAM
OS Debian bookworm

Installation attempts

APT Install attempt
$ sudo apt install opencpn
$ E: Package 'opencpn' has no installation candidate

It doesn't seem to be in the APT repo, contrary to what I got from the homepage

flatpack install attempt
flatpack installed
opencpn installed
$ flatpak run org.opencpn.OpenCPN
$ Error: Unable to initialize GTK+, is DISPLAY set properly?

This suggests to me that the system is not happy to not have a monitor.

Thanks a lot for you help!

Hakan · 22-09-2024, 13:50

You may want to test OpenPlotter where everything is set up?
https://openplotter.readthedocs.io/4...wnloading.html

verkerkbr · 23-09-2024, 04:20

The RaspiOS 64= Debian Bookworm can be installed direct from internet.

Connect the RPI to the internet. Hold the Shjift key impressed during setup.

Then you get the installer. Make your choises. And the Raspi OS is installing direct from the server after adding a medium: usb stick (fast version) SSD or SD (also a fast one)

There are two options for remote screens: the buildin VNC server Mist be switched on in the Rpi setup or the new RPI connect. Works via internet worldwide.

If you have that working. Install OpenCPN. I always prefer the Flatpak versions.

In the past I used a HDMI dummy stick. Then the system thinks that an HDMI screen is connected.

Bram

Kijit · 24-09-2024, 02:36

I just did this. I just downloaded OpenPlotter headless version, imaged a micro SD card, and everything worked.

rgleason · 26-09-2024, 07:36

With some time and experience with using Opencpn 5.10 now, I would like to know if this page in the Basic Manual for RPI Installation is clear and useful, and what changes if any, are advisable (and Why). We are trying to keep this short but useful. Thanks.

https://opencpn.org/wiki/dokuwiki/do...stallation:rpi

Hakan · 26-09-2024, 07:45

What I can see it's relevant.
Maybe update the OpenPlotter link to:
https://openplotter.readthedocs.io/4...wnloading.html

rgleason · 26-09-2024, 14:06

Quote:

Originally Posted by Hakan

What I can see it's relevant.
Maybe update the OpenPlotter link to:
https://openplotter.readthedocs.io/4...wnloading.html

Thanks, done.

verkerkbr · 26-09-2024, 15:32

Hi Rick,

The RaspiOS64 ( =- Debian Bookworm) can be installed direct from the internet. Simply by starting the RPI4-5 with Shift key pressed. And no media in the RPI. Then you get the installer. Very easy to do.

Another excellent RPI OS is the Fedora 40 Linux version. Supported by Redhat/IBM.

All these versions work well with the Flatpak enviroment allready installed.

OpenCPN for Flatpak can be found on the Flathub site. One version for almost all Linux systems.

Details can be added with a discription how to do.

Bram

rgleason · 26-09-2024, 16:24

Quote:

Originally Posted by verkerkbr

Hi Rick,

The RaspiOS64 ( =- Debian Bookworm) can be installed direct from the internet. Simply by starting the RPI4-5 with Shift key pressed. And no media in the RPI. Then you get the installer. Very easy to do.
Another excellent RPI OS is the Fedora 40 Linux version. Supported by Redhat/IBM.
All these versions work well with the Flatpak enviroment already installed.
OpenCPN for Flatpak can be found on the Flathub site. One version for almost all Linux systems.
Details can be added with a description how to do.

Bram

Thanks Bram.

How is this for Flatpak Install instructions ?

verkerkbr · 27-09-2024, 13:18

Hi Rick,

the installation works in my view easier on another way:

check if the Flatpak enviroment is available. sudo apt install flatpak.
Most new OS's have already flatpak available.

Then go to the site flathub.

Search for OpenCPN. Then the install button. (Installs nothing)

The go in your system in the terminal to the Downloads folder. (cd Downloads).
There you find the OpenCPN installation file.

sudo flatpak install (file in the Download folder). Reboot the system and then you find the OpenCPN Icon.

Bram

Forgot to mention flatpak updates: sudo flatpak update

kotovasii · 16-10-2024, 13:38

Quote:

Originally Posted by henko152

I'm struggling with the Installation of OpenCPN on a headless Raspberry Pi.

Questions

Is it possible to install OpenCPN headless and access through other devices?
If so, can you help me identify me error in the installation process?

System

Rasperry Pi 4
4 GB RAM
OS Debian bookworm

Installation attempts

APT Install attempt
$ sudo apt install opencpn
$ E: Package 'opencpn' has no installation candidate

It doesn't seem to be in the APT repo, contrary to what I got from the homepage

flatpack install attempt
flatpack installed
opencpn installed
$ flatpak run org.opencpn.OpenCPN
$ Error: Unable to initialize GTK+, is DISPLAY set properly?

This suggests to me that the system is not happy to not have a monitor.

Thanks a lot for you help!

Hi henko152,
did you ever managed to get this resolved? I have just tried to install opencpn on Raspberry pi 4 latest version of software. I have it running over ethernet (accessing via ssh & VNC)

pi@raspberrypi:~ $ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 12 (bookworm)
Release: 12
Codename: bookworm

I get the same issue:

pi@raspberrypi:~ $ sudo apt-get install opencpn
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package opencpn is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'opencpn' has no installation candidate

I understand people suggest installing the OpenPlotter, but this is not what I am trying to do.

Any thoughts or suggestions are really appreciated.

I am obviously following the instructions here:
https://opencpn.org/wiki/dokuwiki/do...stallation:rpi

verkerkbr · 18-10-2024, 03:26

What about upgrading the Bookworm OS::

sudo apt update
and then sudo apt upgrade.

Bram

kotovasii · 18-10-2024, 06:11

Quote:

Originally Posted by verkerkbr

What about upgrading the Bookworm OS::

sudo apt update
and then sudo apt upgrade.

Bram

Hi Bram,
Thank for your reply!
I mentioned above that I already have bookworm this is what lsb_release -a shows, but of course here is the print out from:

pi@raspberrypi:~ $ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 12 (bookworm)"
NAME="Debian GNU/Linux"
VERSION_ID="12"
VERSION="12 (bookworm)"
VERSION_CODENAME=bookworm
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

Also, one cannot update distro by running apt-get upgrade – we need to run $ apt-get dist-upgrade but I am on the latest release.
It is not the issue with the distro, but the repositories -- they do not contain opencpn for some reason. I will investigate further when I have time, but I found this very strange that given that Raspi is so popular for boaters opencpn is not prebuilt for it. I am holding off compiling it myself. Clearly the original poster had the same issue -- I just hope they come back to share with us the solution.

I got it running no problem on Ubuntu, but my intention was to run it via a compact computer based on Raspberry Pi (with 5 out this is quite a powerful machine now).