SNMP problem

[teitou]

All-
I have installed cacti0.8.6g+Fedora 3 ,and yum install snmp,snmp-utils.
I have writen snmp.conf like this:
disk /
then start snmpd
I run this:
[root@XXXX snmp]# snmpwalk -v 1 -c public localhost .1.3.6.1.4.1.2021.9
End of MIB

so Cacti can't get data from Disk, Any idea's on this issue?
Thanks.
Tei Tou

[gandalf]

You'll have to configure disk support on the target snmpd side. Add disk / to that snmpd.conf may help. What options where used when compiling snmpd on the target side?
Reinhard