krainbolt: you are right, that's exactly why I want to precache. I want to avoid a slow and incorrect migration.
efurban: it would be interesting to see any clarification on the image descriptions issue, do we need to use the above SQL query or not?

What I could do of course is parse the google sitemap and hit all urls it mentions, then precaching will be easy. I can script that without a problem.
But then the question remains whether the image descriptions are migrated as well, that would make this script perfect!

ok. yes. krainbolt, you are right. according to my own description , the migrator only does titles. I'll improve it in my next version. Also, I am thinking of calling the pre-caching function in my tool so it generates the meta data prior to the migration process.

Revisiting an old thread, but has any progress happened as far as a "definitive" way of importing from gallery2?

I've tried gallery3 and while still not really working how I want I noticed the database schema is MUCH easier to understand, so once 3 is released then it may be possible to upgrade to 3 and then write a much simpler query to get all the information.

Another prospective G2 convert here... but, I'm much larger in terms of size (200k+ pics, pushing 900GB of mostly RAW images)

I'd be interested in a working migration tool, but, I need to be certain that all of my full resolution images get moved from one install to the next...

Obviously, I'll need album names and image titles moved as well.

If I can assist in testing, please PM or email me.