WordPress MU

After a fresh installation (WPMU 2.9.2) I wanted to change the custom structure in the Peramlink Settings. However, the custom structure text field (also same for category base and tag base) is prefixed with an uneditable '/blog'.

This prefix does not appear (nor mentioned) when reading the codex or watching video tutorials.

Is it possible to edit or remove this prefix? Changing the 'permalink_structure' option_value in the _options table did not produce the desired result.

Site currently being developed and is running internally on WAMP. The table _site contains:
1, '127.0.0.1', '/mublogs/'

and the _1_options contains:
2, 0, 'siteurl', 'http://127.0.0.1/mublogs/', 'yes'

I would have thought that this was a configuration issue as I haven't seen such prefix elsewhere. I was hoping someone could point me to where this configuration was set.

Hey Gloworm,

Just passed through the very same situation.
And it is easier than what you imagine.
Here is the solution:

http://mu.wordpress.org/forums/topic/15796?replies=8

Regards,
Cospefogo.

Yep, it's a standard for when you have a subfolder install. It's only added to the main blog's permalinks and it's to avoid collisions with other blog names.

You can remove it (via plugins) or leave it.