[GRASS-user] working on a mounted external disk

[Moritz Lennert]

On 08/04/09 10:31, Vincent Bain wrote:
> Hello,
> 
> has anybody ever had problems accessing a gisdbase located on an
> external disk ? In my case, I can open a grass session in a distant
> location/mapset :
> 
>         grass65 /mnt/path_to_my_disk/my_location/topo
>         
>>From within this place, everything works well, OK.
> 
> 
> If I start grass from my home directory and try to reproject data from
> the distant directory :
> 
>         grass65 /home/vincent/my_gisdbase/my_location/my_mapset
>         
>         r.proj input=dem50 location=/mnt/path_to_my_disk/my_location
>         mapset=topo output=dem50
>         
> Then an error occurs :
> 
>         ERREUR :Mapset <topo> in input location
>         </mnt/path_to_my_disk/my_location/> - not found
> 
> whereas the disk is properly mounted there and accessible...
> 
> 
> Any idea on why grass seems not to see the mounted directory ?

You need to use the dbase= option of r.proj to direct it to another 
database. In your case it is looking for a location called 
"/mnt/path_to_my_disk/my_location/" in your current gisdatabase.

Moritz