Gramps Old database
Commencing with Gramps 3.1.2 all official versions of Gramps XML files can be imported. However, a warning will be given on import of 1.0.0 xml. 
If you have an old Gramps XML database generated some years ago, then you may have some difficulties to import it into last stable release.
Gramps-1 did not store event as primary object and did not use bsddb references.
There was some limitations (size, informations, encoding), new Gramps versions tried to fix them.
- The safety way is to import it into Gramps-2 and to export this updated database. This will generate a new Gramps XML more compatible for an import into Gramps-3.
- If your operating system does not support Gramps-2 any more as some dependencies has been removed since Gramps-2 (GCONF, gnome-doc-utils, yelp, python-reportlab, libglade, etc...) or updated like python libs and related, then you could have a look at Linux Genealogy Live CD archives.
- Also, you may submit your old database on bug-tracker, mark this report as private (will be hidden for non-developers) and a developer will try to help you for updating your database.
- related to bug 6129 : I downloaded the gramps 2.2.10 on my ubuntu 11.10 and did the following :
$ tar xzvf gramps-2.2.10.tar.gz $ ./autogen.sh $ make $ python src/gramps.py then * import the 20060115.grdb ( your grdb file ) * export in gramps xml
To run gramps 2.2.10 on Ubuntu 14.04.3 install the following first:
sudo apt-get install gnome-common sudo apt-get install libglib2.0-dev sudo apt-get install gnome-doc-utils sudo apt-get install glade-gtk2
You can now load the new created file in your last gramps version. I hope it will work for everybody.
I choose 2.2.10 because the original file was 20060115 : at this period, gramps was 2.2. or 2.0.
So I used the last 2.2 available version.
If this had not worked, I think I would have tried the last 2.0.11 available version.
XML databases generated by Gramps-1 are not lost as they are written into a documented open format.
Old Note:Event, Repository and Note references are broken because they was not primary objects on Gramps-1. If someone knows how to handle this, then feel free to do changes.