Package: apache2-doc Version: 2.4.12-1 We see scary messages: Setting up apache2-doc (2.4.12-1) ... apache2_invoke apache2-doc: already enabled Job for apache2.service invalid. (Normally I have apache2 not started at boot via sysv-rc-conf. Not sure if related.) invoke-rc.d: initscript apache2, action "reload" failed. (In fact it would be best to test before trying that too.)