I gave this a shot under Ubuntu 6.10 and the only thing I could not get running is disk I/O module. this is becaue I have not found the solution with getting disk info on the newer kernel. I think the problem is the the script itself and will need to be updated.
Anyway, I try to get rrdtool-1.2.15 to work but no luck, having the same error messages as Tenaka. As he said, rrdtool 1.0.49 will work fine, minus the disk I/O module. I'll post an update if I ever get this running 100%.
Shuttle XPC | Intel 865g | P4 3.2Ghz | ATI 9800 Pro
Hosts: Ubuntu 6.10 ~ XGL-Beryl SVN-Gnome | OS X 10.4.8 | WindowsXP
Virtual Appliances: Ubuntu Server 6.10 | WindowsXP | CentOS 4.4