Having the same issue upgrading from 2.3.3.
Though I can pull up my wp-admin page. Though all i can do is enter my username and password. It won’t progress past that page.
Got it working… Not sure what I if anything I did differently but everything seems to be working now.
Really? Any possible tips on what you were playing with that might have done it?
Not a one, I can’t think of anything differently this this time… I followed exactly the same steps I had previously. I deactivated my plugins in 2.5.1, deleted the wp-includes and wp-admin directories, etc. per the upgrade instructions, uploaded the new files and ran upgrade script. The only difference this time was that instead of a blank screen the update script ran and updated the database.
750527
Above fix did not do anything for me. I think my upgrade failed at some point along the way, and it failed to update the db_options row in the wp_options table.
Version 2.6 expects the value “8201” to skip the upgrade process, and after updating the value manually to “8201” my site started working again.
I wrote a small blog entry about the problem and the solution:
http://tutorialvine.com/having-trouble-upgrading-to-wordpress-26
