While GPS system owners may also need occasional software updates, the map update may be the most important if you want to maximize the effectiveness of your GPS device.
There's a saying that as soon as you buy a new car or computer, they're out of date. Between road construction and restaurants going out of business, last year's map may not get you to where you want to go.
I then copied the map file, named , to /home/robin/Garmin Nuvi/Map. If I needed to restore it, I’d give it back it’s original name. When it's time, that can be moved to the Old subfolder.
You can do this in the terminal or just open your file manager as root (“sudo thunar” in a terminal window) and move the file from your Garmin to the “Map” subfolder. ALWAYS BACK UP the old map in case something goes wrong! Select and download the new maps from It’s easy, just follow the prompts on the screen to select your map by continent, country, state, province, or customize your own. So I selected only my own state for the new map, because that’s really all I need and it’s just a few hundred MB in size. But until you're sure everything works okay, keep that old one around!
I suggest you, if time elapsing seems to be exaggerate, to stop and restart the download (last Garmin European map update was 3 hour download! Do a mirror download of a file to check pout the computer performance. Obviously if you are on dial-up there will be ridiculous download times, but on fast broadband it should be only around 3-5 minutes max.
All other downloads (GPI POI file updates) are much faster.
Not for directions, but just as a “rolling map” to tell me where I am and streets are coming up as I travel.
The technique I’ll show you here uses Open Street Map, a free and open-source collaborative work.
I navigated to my /home directory and created a new folder named “Garmin Nuvi.” It has a subfolder called Maps. Copy it back to your Garmin, re-start it, and take it for a test drive.
I connected my Garmin Nuvi to my computer via a USB port and it was automagically mounted, thanks to Thunar’s awesomeness (Thunar is the Xfce file manager in Linux). Save a copy of your new in the /Garmin/New folder as the next backup.