".big for this file structure" message Do I need to buy Garmin Maps if there is OSM?
Garmin: Store maps on Nuvi, not SD Card Wie bekomme ich Open Street Map auf mein Garmin Dakota 20?
I suppose as OSM improves, it will become more attractive.2015-08-03 This method worked very easily on my Garmin Nuvi 3597LM.
As a note, after creating the folder named "Map" and copying the "gmaspupp.img' file into that folder, I ejected the device & booted it.
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After the splash screen/boot screen, the device popped up a notification that I had an upgraded map.
After a accepting, it took me to my map & it showed all the new content. Seems to have worked for an install of UK and Ireland Maps on My Garmin Nuvi 3597.E.g., I need decent maps for hiking in Germany and Brazil/Argentina on an upcoming trip.I would not expect track logs to take much room, but good to have the larger card so I don't have to worry.Where did you download the map from, and what exactly was the download link?OSM doesn't make ISO images available, so either you downloaded the file from somewhere else (and would have to ask them why the file is broken), or maybe your system thinks that the file is an ISO image when in fact it isn't.What operating system do you have, and how do you try to "unzip or open"? I have windows xp and when I try to open with win zip I get the error mesage.