The database lock file is not writable. To lock or unlock the database, this needs to be writable by the web server.
MediaWiki:Lockfilenotwritable
From Phycas
This page has been deleted. The deletion and move log for the page are provided below for reference.
- 13:34, 24 August 2015 MediaWiki default (Talk) deleted page MediaWiki:Lockfilenotwritable (No longer required)