I also experienced the problem Acios_db missing after update maps to 6.34.1 audi mmi3gp
i solved it this way ( by reading a lot of information ):
I wanted to upgrade my MMI3GP to the latest firmware (1001) before installing the new maps.
Firmware upgrade went wel, update maps went well, except the database became not activated.
A lot of research on the internet and thanks to the info provided by
@congo and
@DrGER and other in this forum i was pointed to the acios.db error.
I managed to rebuild the acios.db file and put it on the MMI3GP. No luck.
New install of the maps, still not activated.
Hhmm, maybe the previous map was activated with an activator. Checked the files on the MMI system and it indeed contains the file mmebecker.sh.
Basically the “activator” terminate the process that (re)creates navigation database configuration file acios_db.ini when the mme_becker process is launched at system startup.
I found an activator uninstaller, run the script, it could not delete the mmebecker.sh file.
Still no maps activated.
I found out ( several days later trying) that basically the “uninstall” script only has to alter/modify the mmelauncher.cfg file.
The Original mmelauncher.cfg file contains => mme_exe = /sbin/mme-becker
and the
Modified mmelauncher.cfg file contains => mme_exe = /sbin/mme-becker.sh
So i replaced the setting /sbin/mme-becker.sh with /sbin/mme-becker, did a new reinstall of the maps, run the activator and it is finally activated.
Long story short:
Enjoy