RPI 3 not loading BSB charts

[pendragon]

My RPI loads the old Cm93 charts perfecrly and are working fine on Ocpn

Upon loading a new folder with only BSB (kap & bsb extensions) charts , OpenCpn goes throught the motions of loading the chart folders showing on screen, BUT they don't list in Cpn
I removed all charts folders, reboot Cpn, -->Loaded the BSB folder but no charts are showing.
Yet the BSB charts work fine in Windows, that means that the charts are nor corrupted.
Is there a solution as to why the BSB's don't show in Ras Pi 3?

[Hakan]

There's no general reason raster charts won't work on the RPi if they are working on Win.
Try:
- Check the OCPN Charts->Charts files are showing the correct folder and the files are really present if you use the file manager.

- Select again "Scan charts and update database" and "Force full Database Rebuild" -> OK.

- Open right mouse click menu and check if you have "Chart groups". If so select ""All active charts"

- Use keyboard "O" or right hamburger menu "Show chart outlines". Are there any red squares indicating the presence of the raster charts. If so center the screen view into one of them and zoom in. (While in the hamburger menu also check "Enable chart quilting" is selected)

- Are there any blue rectangles in the screen bottom bar? If so click one of them.

- Still no chart shown? See the log file for notes about loading charts.

[pendragon]

Originally Posted by Hakan

There's no general reason raster charts won't work on the RPi if they are working on Win.
Try:
- Check the OCPN Charts->Charts files are showing the correct folder and the files are really present if you use the file manager.





- Select again "Scan charts and update database" and "Force full Database Rebuild" -> OK.



- Open right mouse click menu and check if you have "Chart groups". If so select ""All active charts"



- Use keyboard "O" or right hamburger menu "Show chart outlines". Are there any red squares indicating the presence of the raster charts. If so center the screen view into one of them and zoom in. (While in the hamburger menu also check

"Enable chart quilting" is selected)



- Are there any blue rectangles in the screen bottom bar? If so click one of them.






- Still no chart shown? See the log file for notes about loading charts.

1)Yes, the actual charts are showing in Cpn "Chart files" , shows both directories (Cm93 included)
2)Force full data rebuilt: Done this twice, am getting the same result, eg only showing a yellow bar
3)Yes all directories are showing in CHART GROUPS
4)No blue rectangles only a full yellow bar
5)Yes Quilting and "chart outlines ' are still checked
6)Probably a stupid question, but "Where is the log located"? Sorry, am very unfamiliar with LInux/RPi

Apart from the raster charts not showing , I am getting AIS data on screen via wifi. This btw has always worked fine

[Hakan]

Just to be sure:
5)Yes Quilting and "chart outlines ' are still checked.
>> And no red rectangles where the raster chart would cover? >> Zoom!


The log file location is shown with a link by the "?" in the left toolbar.
or

On the Pi it use to be at: /home/pi/.opencpn (Mind the dot! You must show hidden files. Either select in the file manager or shortcut Ctrl-H)

[pendragon]

Originally Posted by Hakan

Just to be sure:
5)Yes Quilting and "chart outlines ' are still checked.
>> And no red rectangles where the raster chart would cover? >> Zoom!


The log file location is shown with a link by the "?" in the left toolbar.
or

On the Pi it use to be at: /home/pi/.opencpn (Mind the dot! You must show hidden files. Either select in the file manager or shortcut Ctrl-H)

NO red rectangles( chart outlines) showing-- Zoom in still nothing..
FYI I've been using Cpn for many years but only on Windows XP-7-10
(In win I can find anything, but this Linux stuff has a file hierarchy that does not make any sense, to me.. ...so far anyway)


I found the log file--> what line(s) am i looking for? I am looking at 1800+ lines covering the last 2 hours

[pendragon]

in /home/pi/.opencpn There is a folder called cm93 , but there is no folder for the raster charts..

[Hakan]

in /home/pi/.opencpn your are looking for "opencpn.log" no folders. But you found the log the other way.
You need a log file for the time you added the raster chart files to OCPN database. If you've that post it here. But to be able to upload it here make a copy of the file and change the file name to a pdf >> "opencpn.log.pdf"


BTW: As a "native" Win user a can partly agree about your Linux comments. But don't tell the developers here

[pendragon]

Originally Posted by Hakan

in /home/pi/.opencpn your are looking for "opencpn.log" no folders. But you found the log the other way.
You need a log file for the time you added the raster chart files to OCPN database. If you've that post it here. But to be able to upload it here make a copy of the file and change the file name to a pdf >> "opencpn.log.pdf"

Hakan,

I deleted ALL the charts in Cpn
Than I loaded only the BSB chart file.

(As before CPn goes through the motions, yet no charts to be seen on screen)
I saved the log from that time on as a .txt file, as it originally did not have any extension.



The log shows that it cannot load the charts..
"Could not read first 1999 bytes of header for chart file:" FOR every chart in the folder




Here is an extract from the start

21:53:01.171 MESSAGE chart1.cpp:7389 LOGBOOK: 2022-03-22 08:53:01 UTC DR Lat -37.67320 Lon 176.17830
21:54:01.311 MESSAGE chart1.cpp:6609
21:54:01.311 MESSAGE chart1.cpp:6610 Starting chart database Update...
21:54:01.311 MESSAGE chartdbs.cpp:1783 check_cm93 opened dir OK: /home/pi/Documents/Charts/NZ-Charts-Jan22
21:54:01.950 MESSAGE chartdbs.cpp:1958 Searching directory: /home/pi/Documents/Charts/NZ-Charts-Jan22 for *.kap
21:54:01.951 MESSAGE chartdbs.cpp:1783 check_cm93 opened dir OK: /home/pi/Documents/Charts/NZ-Charts-Jan22
21:54:02.317 MESSAGE chartdbs.cpp:2510 Loading chart data for /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13101.KAP
21:54:02.317 MESSAGE chartimg.cpp:769 Could not read first 1999 bytes of header for chart file: /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13101.KAP
21:54:02.318 MESSAGE chartdbs.cpp:2523 ...initialization failed for /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13101.KAP
21:54:02.318 MESSAGE chartdbs.cpp:2158 CreateChartTableEntry() failed for file: /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13101.KAP
21:54:02.318 MESSAGE chartdbs.cpp:2510 Loading chart data for /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13102.KAP
21:54:02.318 MESSAGE chartimg.cpp:769 Could not read first 1999 bytes of header for chart file: /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13102.KAP
21:54:02.318 MESSAGE chartdbs.cpp:2523 ...initialization failed for /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13102.KAP
21:54:02.318 MESSAGE chartdbs.cpp:2158 CreateChartTableEntry() failed for file: /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13102.KAP
21:54:02.319 MESSAGE chartdbs.cpp:2510 Loading chart data for /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13103.KAP
21:54:02.319 MESSAGE chartimg.cpp:769 Could not read first 1999 bytes of header for chart file: /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13103.KAP
21:54:02.319 MESSAGE chartdbs.cpp:2523 ...initialization failed for /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13103.KAP
21:54:02.319 MESSAGE chartdbs.cpp:2158 CreateChartTableEntry() failed for file: /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13103.KAP
21:54:02.338 MESSAGE chartdbs.cpp:2510 Loading chart data for /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13104.KAP
21:54:02.338 MESSAGE chartimg.cpp:769 Could not read first 1999 bytes of header for chart file: /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13104.KAP
21:54:02.338 MESSAGE chartdbs.cpp:2523 ...initialization failed for /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13104.KAP
21:54:02.338 MESSAGE chartdbs.cpp:2158 CreateChartTableEntry() failed for file: /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131/NU13104.KAP
21:54:02.339 MESSAGE chartdbs.cpp:2510 Loading chart data for /home/pi/Documents/Charts/NZ-Charts-Jan22/NZ14051/NZ1405101.KAP
21:54:02.339 MESSAGE chartimg.cpp:769 Could not read first 1999 bytes of header for chart file: /home/pi/Documents/Charts/NZ-Charts-Jan22/NZ14051/NZ1405101.KAP
21:54:02.339 MESSAGE chartdbs.cpp:2523 ...initialization failed for /home/pi/Documents/Charts/NZ-Charts-Jan22/NZ14051/NZ1405101.KAP

[CarCode]

@pendragon
Please read your log yourself!
You see e.g.: "check_cm93 opened dir OK" which points to /home/pi/Documents/Charts/NZ-Charts-Jan22
But this folder has no cm93 charts!!!


Obviously you have not installed correct your charts.
Read the OpenCPN manual how to install charts please.


BTW: You should have a file called "chartlist.dat". Delete it before trying again installing your charts.

[nohal]

Originally Posted by pendragon

The log shows that it cannot load the charts..
"Could not read first 1999 bytes of header for chart file:" FOR every chart in the folder

This probably implies that either all your KAP charts were damaged or there is a permission problem.
Check the above or simply use the chart downloader to get a new set.

[bdbcat]

pendragon....
In a linux console window, do:

$ ls -l /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131

Show output here.


Dave

[pendragon]

Originally Posted by bdbcat

pendragon....
In a linux console window, do:

$ ls -l /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131

Show output here.


Dave

I get from raspberry 3 the following:

bash: /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131: Is a directory


I get from Ubuntu the following: (Dual boot Win7 & Ubuntu)

adrian@adrian-T410:~$ ls -l /home/adrian/Documents/Charts/NZ-Charts-Jan22/NU131
total 1384
-rwxrwxrwx 1 adrian adrian 733443 Mar 26 2021 NU13101.KAP
-rwxrwxrwx 1 adrian adrian 356487 Mar 26 2021 NU13102.KAP
-rwxrwxrwx 1 adrian adrian 210506 Mar 26 2021 NU13103.KAP
-rwxrwxrwx 1 adrian adrian 101710 Mar 26 2021 NU13104.KAP
-rwxrwxrwx 1 adrian adrian 2277 Mar 26 2021 NU131.BSB

[nohal]

We still would like to see the output of

ls -la /home/pi/Documents/Charts/NZ-Charts-Jan22/NU131

from the raspberry pi to be able to start discarding your possible problems, you tried to "execute" a path to the directory, which of course did not do anything useful, instead of running the command Dave asked you to run...
Even on your notebook the permissions on the chart are wrong (way too permissive, the charts are certainly not executable programs), but that does not prevent stuff from working.

[bdbcat]

pendragon...
Pretty clear that your rPI-3 system has problems with the ~/Documents/Charts directory. Hard to say from here what the files system problem is.


I would delete that directory, and reload the charts into something like "~/Charts".


Dave

[pendragon]

Originally Posted by bdbcat

pendragon...
Pretty clear that your rPI-3 system has problems with the ~/Documents/Charts directory. Hard to say from here what the files system problem is.


I would delete that directory, and reload the charts into something like "~/Charts".


Dave

Yet, the file system , as is. has no problems with the Cm93 charts as they list OK and work as per normal, but BSb's have a problem.

I normally download NZ charts updates as a zip file(these are generally less than 2 weeks old) compared to using Cpn to downloading them, which are 3 months old.


But I'll do as you suggest , stick everything in the Charts dir