Upgrading GRASS database
Upgrading the GRASS database from older to recent GRASS versions
Migrating from GRASS 4 to GRASS 5
Raster: The LZW compression has been removed which requires a format conversion: see LZW removal announcement from Jan. 2001.
Raster3D: No changes.
Sites: No changes.
Vector: You need to rebuild the topology with v.support.
Migrating from GRASS 4 to GRASS 6
Raster: The LZW compression has been removed which requires a format conversion: see LZW removal announcement from Jan. 2001.
Raster3D: No changes.
Sites: Sites have been deprecated and are handled as vector points. Convert sites maps to vector maps with v.in.sites (for all maps, use v.in.sites.all).
Vector: You need to convert the format with v.convert (for all maps, use v.convert.all addon).
(note: also available in GRASS GIS 7 as addons: v.convert (for all maps, use v.convert.all addon)).
Migrating from GRASS 5 to GRASS 6
Raster: No relevant changes.
Raster3D: No changes.
Sites: Sites have been deprecated and are handled as vector points. Convert sites maps to vector maps with v.in.sites (for all maps, use v.in.sites.all).
Vector: You need to convert the format with v.convert (for all maps, use v.convert.all).
Migrating from GRASS 6 to GRASS 7
Raster: No changes.
Raster3D: No changes.
Vector: You need to rebuild the topology with v.build (for all maps automatically: v.build.all).
Migrating from GRASS 7 to GRASS 8
So far, no format changes in GRASS GIS 8 are under development.
Troubleshooting
- "XXX is not a valid mapset" error:
- This normally indicates that the directory lacks a WIND file. Copying the DEFAULT_WIND file (if it exists) to WIND should suffice.