[GRASS-user] Advice on importing V5 data sets?

GRASS GRASS user
,
1

Is there a conversion utility, guide or other resource for importing old data to V7.8? This is over 50GB of data and I need to recover it.

I’ve tried viewing it in QGIS desktop and opening the mapset in V7.8 but the data simply isn’t recognised at all. Googling hasn’t helped.

Thanks for any suggestions

2

On Tue, Jun 22, 2021 at 4:33 PM brendon wolff-piggott
<mytekmail@gmail.com> wrote:

Is there a conversion utility, guide or other resource for importing old data to V7.8? This is over 50GB of data and I need to recover it.

Is it raster or vector data, or both?

I've tried viewing it in QGIS desktop and opening the mapset in V7.8 but the data simply isn't recognised at all. Googling hasn't helped.

Please describe a bit more what you try to achieve: Your "old data"
have been generated in which GRASS GIS version?

Markus

--
Markus Neteler, PhD
https://www.mundialis.de - free data with free software
https://grass.osgeo.org
https://courses.neteler.org/blog

3

Sorry, thought I had answered yesterday. It is both vector and raster. Created in GRASS 5.1 (not sure of .x number).

I would like to import the data into PostGIS, so I can access it in GRASS or QGIS.

I have quite a lot of the original shape files that I could import again, but not the raster data and DEMs created from it.

On Tue, Jun 22, 2021 at 6:44 PM Markus Neteler <neteler@osgeo.org> wrote:

On Tue, Jun 22, 2021 at 4:33 PM brendon wolff-piggott
<mytekmail@gmail.com> wrote:

Is there a conversion utility, guide or other resource for importing old data to V7.8? This is over 50GB of data and I need to recover it.

Is it raster or vector data, or both?

I’ve tried viewing it in QGIS desktop and opening the mapset in V7.8 but the data simply isn’t recognised at all. Googling hasn’t helped.

Please describe a bit more what you try to achieve: Your “old data”
have been generated in which GRASS GIS version?

Markus

–
Markus Neteler, PhD
https://www.mundialis.de - free data with free software
https://grass.osgeo.org
https://courses.neteler.org/blog

4

Hi,

On Thu, Jun 24, 2021 at 10:06 AM brendon wolff-piggott
<mytekmail@gmail.com> wrote:

Sorry, thought I had answered yesterday. It is both vector and raster. Created in GRASS 5.1 (not sure of .x number).

I finally found back this page and updated the links therein:

https://grasswiki.osgeo.org/wiki/Upgrading_GRASS_database

It contains:
Upgrading the GRASS database from older to recent GRASS versions
1.1 Migrating from GRASS 4 to GRASS 5
1.2 Migrating from GRASS 4 to GRASS 6
1.3 Migrating from GRASS 5 to GRASS 6
1.4 Migrating from GRASS 6 to GRASS 7

I would like to import the data into PostGIS, so I can access it in GRASS or QGIS.

That should be doable, since conversion tools are included.

I have quite a lot of the original shape files that I could import again, but not the raster data and DEMs created from it.

I would expect that the raster maps from GRASS GIS 5 can be opened in
any later version without problems.
If not, please send the error message.

Markus

--
Markus Neteler, PhD
https://www.mundialis.de - free data with free software
https://grass.osgeo.org
https://courses.neteler.org/blog

5

Le 24 juin 2021 10:06:27 GMT+02:00, brendon wolff-piggott <mytekmail@gmail.com> a écrit :

Sorry, thought I had answered yesterday. It is both vector and raster.
Created in GRASS 5.1 (not sure of .x number).

I would like to import the data into PostGIS, so I can access it in GRASS
or QGIS.

If all you want is to get the data out of a GRASS GIS database, another option would be to simply install GRASS 5 and then export the data: https://grass.osgeo.org/about/history/releases/ (see 2004 for 5.x source code).

Moritz

6

Thanks for all the advice. I’m still tinkering as other projects came up in the meantime but it looks promising

On Fri, Jun 25, 2021, 8:51 AM Moritz Lennert <mlennert@club.worldonline.be> wrote:

Le 24 juin 2021 10:06:27 GMT+02:00, brendon wolff-piggott <mytekmail@gmail.com> a écrit :

Sorry, thought I had answered yesterday. It is both vector and raster.
Created in GRASS 5.1 (not sure of .x number).

I would like to import the data into PostGIS, so I can access it in GRASS
or QGIS.

If all you want is to get the data out of a GRASS GIS database, another option would be to simply install GRASS 5 and then export the data: https://grass.osgeo.org/about/history/releases/ (see 2004 for 5.x source code).

Moritz