I'm trying to merge two installations. I recreated the websites and stores, plus categories and attributes from installation A in B. In a test environement I changed the apache vhost, and the sites work. I imported the products, and checked product settings like category, websites to see if they were imported correctly. Categories and websites are set to active, like the products. I emptied cache and reindexed. Product stocks are the same as in the original database.
The homepage stays empty. Going to a product details page on the (still working) production site, I copied the url and opened this page in the test environment: page not found. This is the same for all imported sites. The original sites and products in this installation work correctly.
I'm probably missing something basic, but I can't figure out what. Any ideas what it could be?
It turned out to be a problem with the templates. For three templates, files were missing in
app/code/local that were essential for the templates to work properly, and that were obviously not copied when copying the templates.