I did everything right -- verified my SP was using the right versions of PHP and MySQL, did all the appropriate backups, deactivated the plugins, and followed the directions exactly (although they aren't very clear).
When I got to the part about running the install script I knew I was in trouble. I couldn't even log in. All I got was a blank page. My blog was hosed too -- just a blank page.
I tried a few other things, re-uploading the wp-config from my backup, etc., but all I could get was the blank page.
Fortunately, I had my backup, so I restored the previous version and it works. But does anyone reading this have any idea what went wrong? It's pretty frustrating to not even have an error message, just a blank page!
BTW, does anyone know what the heck this means: (From step 3) "Get the latest and greatest WordPress and upload it to the WordPress directory, overwriting all the files that exist there only after you have delete the old files"
Uh... if you've deleted the old files then there is nothing to overwrite. Is that just badly written, or am I missing something?