Question

This happened without me changing anything except upgrading to 3.2.1 2 weeks ago.

in permalink settings, /blog is hardcoded before the text field for custom structure or category base. This screwed up all my posts across the site.
I did not install this under the ‘blog’ dir, nor does a ‘blog’ dir exist.
I’d prefer a solution without changing the core files.

I previous post with similar title does not answer this question, please to don’t to that.

I’m using Multisite option turned on.
WP 3.2.1
I recently did a auto upgrade. I backed up the database but not the files >:(

Answer 1

If you are using Multisite version, this is by design that way. please see here. but you may be lucky to remove it. I have recently also tested this, it works in some web server, but does not in others.

follow these steps:

1. go to the network(super) admin dashboard.
2. clikc ‘All sites’ on left side and select ‘edit’ the site from list.
3. you will see the main page has four tabs, click on ‘settings’.
4. scroll down a bit, search for ‘Permalink Structure’ and remove ‘/blog’.
5. refresh your pages and see if it works.