[xwiki-users] xwiki broken after apt-get dist-upgrade - 404 errors on wiki pages

Running xwiki 4.1 enterprise on ubuntu 12.04 with tomcat and mysql. Today I did: apt-get update apt-get dist-upgrade which also updated the xwiki 4.1 I was running to 5.1 No errors reported, but after the upgrade, opening links on the wiki returns 404 from tomcat. This seems similar to the following issue, just without any installation error: http://permalink.gmane.org/gmane.comp.web.wiki.xwiki.scm/147409 All tips appreciated! (Thomas - I'm looking at you :P) -Inge :)