Thanks for all the replies. I reformatted the external drive as FAT and let Ububtu mount it itself, without editing fstab.
Then I started GRASS without the sudo option and by selecting the data folder using the /media/volume_name/grassdata path. 2010/5/24, Glynn Clements <gl...@gclements.plus.com>: > > Hanlie Pretorius wrote: > >> I'm using GRASS 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? > > You must be the owner of the directory for the current mapset. > > If you're mounting a FAT filesystem, you can use the uid= mount option > to set the ownership of the files. However, I don't know what the > situation is with NTFS, as it has its own permission model. > > -- > Glynn Clements <gl...@gclements.plus.com> > _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user