Raspberry Pi w/ OpenCPN

[yachtvalhalla]

Here's another yachtie's experience.

https://svmatilda.blogspot.com/2018/...d-cWCHBZj22et4

Terry

[NielsvdB]

Originally Posted by mikedefieslife

If you already have an old SSD drive lying around there's no need for an SSD HAT, you can just connect it via USB and boot from that. Still much faster than the SD card and without as much risk of corruption.

Maximum speed wil be USB transfer speeds, 60 megabytes per second for USB 2.0 interface.

SSD wil be at maximum bus speed of USB 2.0
35MB/sec

https://www.jamesachambers.com/2018/...ed-benchmarks/

You don't need a SSD HAT. YOu can also use any USB connected SSD.

[benet250]

Hello, I am having a tremendous amount of difficulty understanding the whole process of loading OpenCpn onto the Raspberry Pi 3 B+and making it work, I have read the manual and also the Raspberry Pi manual but when it comes to entering the correct commands and repositories etc I am getting very confused, as this is my first attempt at doing anything with a raspberry pi I am a total neophyte, (we all have to start somewhere), is there anyone who can help and walk me through the steps needed to get this up and running, I really would appreciate it.
Thank you
Ron M

[yachtvalhalla]

benet250 As posted earlier have a look at
https://svmatilda.blogspot.com/2018/...d-cWCHBZj22et4

[verkerkbr]

Originally Posted by benet250

Hello, I am having a tremendous amount of difficulty understanding the whole process of loading OpenCpn onto the Raspberry Pi 3 B+and making it work, I have read the manual and also the Raspberry Pi manual but when it comes to entering the correct commands and repositories etc I am getting very confused, as this is my first attempt at doing anything with a raspberry pi I am a total neophyte, (we all have to start somewhere), is there anyone who can help and walk me through the steps needed to get this up and running, I really would appreciate it.
Thank you
Ron M

Hi Ron,

simply take the image from OpenPlotter. Then you have Raspian and OpenCPN allready installed. Plus a lot of extra's.

Then doing the Raspian updates in the terminal:

sudo apt update (this renews the files list)
sudo apt upgrade (updating the changed files)

This the first thing you can do, to get your RPI working.

Regards,


Bram

[AedanC]

I’ll add a second vote for OpenPlotter. You can even install it without having a keyboard or screen attached to your Pi. By far the easiest way to get OpenCpn running on a Pi.

[pinguino]

Originally Posted by benet250

Hello, I am having a tremendous amount of difficulty understanding the whole process of loading OpenCpn onto the Raspberry Pi 3 B+and making it work, I have read the manual and also the Raspberry Pi manual but when it comes to entering the correct commands and repositories etc I am getting very confused, as this is my first attempt at doing anything with a raspberry pi I am a total neophyte, (we all have to start somewhere), is there anyone who can help and walk me through the steps needed to get this up and running, I really would appreciate it.
Thank you
Ron M

On the opencpn website there are no proper instructions to install the software on a Rpi running Raspbian.

That, bearing in mind that on the cover of the web they indicate that it works also on Raspberry Pi, is a small defect that should be rectified since neither the instructions for Ubuntu work nor those for Debian are adequate.

The way to install it on Raspbian stretch -the last one available- are these:

Open a console, let's add opencpn to the list of "providers". You have to edit a file with admin permissions:

sudo leafpad /etc/apt/sources.list

After this a document with a few lines is opened to you. Go to the bottom and add this line:

deb http://ppa.launchpad.net/opencpn/opencpn/ubuntu/ xenial main

Add it exactly or, better yet, copy and paste it into the file. Then save the changes and close the document. It is very important that you do not modify anything above on the document or you could have problems later.

Once this is done you go back to the console and enter the command to activate the signature:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys C865EB40

And then this one:

sudo apt update

And then you can try installing opencpn with:

sudo apt install opencpn

If everything has gone as it should in a few moments you should already have your Opencpn installed.

However, I insist that you consider the direct use of OpenPlotter, not only because it is easier to install but also because you will get a system more suitable specifically for sailing and more tuned. I exclusively use OpenPlotter too.

[rgleason]

Pinguino, thank you. May I enlist you to help update the instructions? Same to Ron M? I will copy Pinguino's directions to the wiki and show a link. Will you both please review and advise?

[pinguino]

Originally Posted by rgleason

Pinguino, thank you. May I enlist you to help update the instructions? Same to Ron M? I will copy Pinguino's directions to the wiki and show a link. Will you both please review and advise?

Rgleason, the instructions I saw on the wiki are correct. Where I miss those instructions is on the opencpn.org download page, which is where most of those who come for the first time to opencpn to download it.

Maybe a link to the section of the wiki that explains it in detail would be enough for Raspberry Pi users.

[bdbcat]

pinguino....


Check this out....


https://opencpn.org/OpenCPN/info/downloadopencpn.html


Thanks for the feedback
Dave

[pinguino]

Great. Thank you very much Dave.

[benet250]

One thing that was discovered when doing research on Raspberry Pi was SD cards were subject to block failure when undergoing large amounts of I/O operations such as constantly reading/writing to the same blocks, so the SD manufacturers came out with 'High Endurance' microSDHC cards, these cards were designed primarily for video monitoring, dashcams, and home security cameras, as the RPi's use the SD cards as VM's there is a steady stream of I/O's to the cards and when one digs way into the literature of the RPi one finds that High Endurance SD cards are highly recommended. One can google 'Wear Level' on SD cards to discover more information.

[bokakob]

Originally Posted by stevead

Dumb question, why does it install in the "Education menu option" ?

Linux developers most likely didn't know where to dock this program. Rather than creating yet another menu item such as "Navigation" or "Maps," or something like that, they decided to insert the link in the "Education." If desired the menu could be changed to your liking.

[akopac]

Has anybody used the Moitessier hat compass for a heading sensor for MARPA?

[bwarren]

I am trying to install Opencpn on Raspberry pi 400. When I get to the point

"sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys CB65EB40", I get message "gpg: keyserver receive failed: No data"


I was doing this per the installation guide on OpenCPN wiki/manuals.
My first install of OpenCPN on my RPI 400 opened with a black screen and frozen.


Anyone have success in getting OpenCPN running on a RPI 400?

Originally Posted by stevead

Just an FYI for Wiki/User Manual.

Just purchased a Raspberry Pi and I'm using Raspbian Stretch 2018-10-09

Following the install instructions got the following message:

gpg: keyserver receive failed: No dirmngr

which is mentioned in the OpenCPN user manual.

My solution was the following:

sudo apt-get install dirmngr

then the normal OpenCPN install commands

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys C865EB40
sudo apt-get update
sudo apt-get install opencpn

Installed successfully and using CM93 charts, appears to be working fine.

Dumb question, why does it install in the "Education menu option" ?

FYI, Using a Raspberry Pi CAN hat to connect to the NMEA2000 network to prototype/test the Linux version of the TwoCan plugin using the SocketCan interface.