i have magento 1.6.2 running on a dedicated server (ubuntu 10.04 lts)
I have tried various ways to upgrade magento to 1.7.0.2, but with no success.
Now i am thinking of installing a fresh magento 1.7.0.2 and rebuilding the shop. This way i don't have the litter anymore of old deleted extensions.
But i want all my current data like products, orders, customers, mailinglist etc. imported in my new fresh installation.
How can i do this? Or isn't this a good idea?
I hope someone can help me ...
Try the Magento database repair tool:
http://www.magentocommerce.com/wiki/1_-_installation_and_configuration/db-repair-tool
I would install over what you have got after removing tables/keys that don't need to be there. The above tool will enable you to identify what is to be deleted. It will also give you confidence in your db build.