I have a different problem with upgrading. I did follow the manual and had success when upgrading a fresh 1.7.5 install to 2.0.0.8.
When I try to perform the same exact upgrade procedure on my live install, I get the following error:
Failed to execute DB schema transformations. MySQL said: Duplicate entry '14-0-3' for key 1
I've done my homework and tried it every which way I can think of. Any insight from the community?
Thanks!