[mkgmap-dev] Trouble with merging IMG files (for Garmin)

Thu Jul 13 16:10:08 BST 2023

Hi

You need to have ... --input-file=otm-hungary.img ... to fix the file
doesn't exist errors.

I have no idea if the rest of what you are asking for will work.

Ticker 

On Thu, 2023-07-13 at 16:35 +0200, Tamas Gal wrote:
> Hi all,
> 
> maybe I got that wrong but I thought I can merge multiple IMG files
> into a single one with Mkgmap. My problem is that I need a bunch of
> maps and my Garmin 64s only shows 12 in the map selection. A simple
> solution to this limitation is merging maps ;)
> 
> Anyways, I gave Mkgmap a try but I get an error which I don't know
> how to interpret, since it's missing the input files but they are
> definitely in the folder. Do I maybe need the original OSM files as
> input files? In that case, the error message is probably wrong.
> 
> Here is an example where I try to merge the Hungarian and German map
> into a single IMG:
> 
> ░ tamasgal at silentbox:~/opt/mkgmap-r4909
> ░ 16:29:24 > ls -alh *.img
> -rw-r--r--@ 1 tamasgal  staff   126M Jul 13 16:24 otm-germany-
> contours.img
> -rw-r--r--@ 1 tamasgal  staff    43M Jul 13 16:28 otm-hungary-
> contours.img
> -rw-r--r--@ 1 tamasgal  staff   346M Jul 13 16:28 otm-hungary.img
> -rw-r--r--@ 1 tamasgal  staff   246M Jul 13 16:29 otm-slovenia.img
> 
> ░ tamasgal at silentbox:~/opt/mkgmap-r4909
> ░ 16:29:32 > java -jar mkgmap.jar --input-file otm-hungary.img --
> input-file otm-slovenia.img --gmapsupp
> Mkgmap version 4909
> Time started: Thu Jul 13 16:29:45 CEST 2023
> SEVERE (Main): : input file '' doesn't exist
> WARNING (global): Setting max-jobs to 1
> SEVERE (Main): : input file '' doesn't exist
> Number of MapFailedExceptions: 0
> WARNING (global): To reduce the run time, consider increasing the
> amnount of memory available for use by mkgmap by using the Java -Xmx
> flag to set the memory to more than 32800 MB, providing this is less
> than the amount of physical memory installed.
> SEVERE (global): Exiting - if you want to carry on regardless, use
> the --keep-going option
> Number of ExitExceptions: 1
> Time finished: Thu Jul 13 16:29:45 CEST 2023
> Total time taken: 182 ms
> 
> Any ideas?
> 
> Thanks in advance,
> Tom
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