I applied the D7 alpha 7 release which didn't go too well, so I decided
to create a new alpha 7 instance and import the data into it.
I moved over all the content tables... blocks, views, field data, node
types, node tables, field config tables. Everything is 99% ok, the site
looks like it did, I can access everything, my nodes are there, as are
the blocks and views.
The one odd thing that happened was that in the field_config_entity_type
table, the new one had 1 as node and 2 as comment, whereas the older
version was the reverse, and all the entity-id's for the fields was 2
(which they should be, having been created for nodes), so I changed node
to 2 and comment to 1.
The only issue I'm having, which is probably something small with a big
result, is that even though all the field data is there, and the field
data maps to the node entity type and the correct nodes, when I edit the
node the field data is missing, and when I preview a view using those
fields the field data is missing, but when I look at the field data in
the db it's fine.
One hint, though I haven't figured out the cause or correction, is that
when I look at the sql generated by the view, it shows
field_data_field_myfield.etid = 1 When I put that query in phpmyadmin,
and change the value etid to 2, it comes back with data. I can't find
where it's getting the value of 1 from. I did clear cache, and all the
etid values for in the field config table are 2.