[GRASS-user] g.mapset unable to read GIS_LOCK env variable

Hamish hamish_b at yahoo.com
Fri Jun 19 22:00:52 EDT 2009

> Daniel Victoria wrote:
> > Using Grass 6.4.0 from Osgeo4W in WinXP. When I try to change my
> > mapset inside a grass section by typing, for example,  g.mapset
> > PERMANENT at the prompt I get the error:
> > -----------------------------
> > GRASS 6.4.0svn (utm23)> g.mapset PERMANENT
> > ERROR: Unable to read GIS_LOCK environment variable
Glynn Clements wrote:
> It's a known issue, although I'm surprised that it hasn't
> been fixed already.
> Setting GIS_LOCK (to anything) in init.bat should prevent
> the error.

I can't remember if I posted it to the list or not, but one thing I
discovered recently is that concurrent session use in WinGrass doesn't
work. The old session takes on the .gisrc of the new one and everything
gets rather confusing for a little while.



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