diff -up ./Bugzilla/Constants.pm.rw-paths ./Bugzilla/Constants.pm
--- ./Bugzilla/Constants.pm.rw-paths	2019-02-14 20:42:11.280492600 +0100
+++ ./Bugzilla/Constants.pm	2019-02-14 20:44:39.281581534 +0100
@@ -700,7 +700,7 @@ sub _bz_locations {
     $datadir     = "data";
   }
 
-  $datadir = "$libpath/$datadir";
+  $datadir = "/var/lib/bugzilla/$datadir";
 
   # We have to return absolute paths for mod_perl.
   # That means that if you modify these paths, they must be absolute paths.
@@ -714,11 +714,11 @@ sub _bz_locations {
     'templatedir'    => "$libpath/template",
     'template_cache' => "$datadir/template",
     'project'        => $project,
-    'localconfig'    => "$libpath/$localconfig",
+    'localconfig'    => "/etc/bugzilla/$localconfig",
     'datadir'        => $datadir,
     'attachdir'      => "$datadir/attachments",
     'skinsdir'       => "$libpath/skins",
-    'graphsdir'      => "$libpath/graphs",
+    'graphsdir'      => "/var/lib/bugzilla/graphs",
 
     # $webdotdir must be in the web server's tree somewhere. Even if you use a
     # local dot, we output images to there. Also, if $webdotdir is
@@ -728,7 +728,7 @@ sub _bz_locations {
     # The script should really generate these graphs directly...
     'webdotdir'     => "$datadir/webdot",
     'extensionsdir' => "$libpath/extensions",
-    'assetsdir'     => "$datadir/assets",
+    'assetsdir'     => "$libpath/assets",
   };
 }