Cacti + RRDTool 1.3.x = No Graphs

I found out the hard way that the monitoring tool Cacti does not really support rrdtool 1.3.2. Fortunately, there is an easy workaround.

Edit cacti/lib/rrd.php and comment out line 1685:

// return “–font ” . strtoupper($type) . “:” . $size . “:” . $font . RRD_NL;