[GRASS-user] Using an external hard drive as data source

[Jarek Jasiewicz]

Hanlie Pretorius pisze:
> Hi,
>
> I'm using GRASS 6.4 on two machines in different locations (one Win XP,
> the other Ubuntu 10.04), so I would like to keep my grassdata folder
> on an external drive. However, when I try to run grass in Ubuntu using
> the external hard drive (NTFS file system), I get the following error
> as soon as I've selected the new data location and the GUI starts to
> load:
> -----
> Execution failed: 'g.region -u -g -p -c'
>
> Details:
> Error: MAPSET PERMANENT - permission denied
> -----
>
> To run GRASS, I use the command 'sudo grass -wx'.
>
> GRASS works fine when I run it from the internal hard drive.
>
> Is there a way to get GRASS to work from the external drive?
>
> Thanks
> Hanlie
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>   
Do you have write permission on your ntfs disk? It is possible that disk 
is mounted on ubuntu as read -only.