example of what im trying to do
# yumdownloader net-snmp.x86_64 --source
Enabling epel-source repository
epel-source | 2.9 kB 00:00
No source RPM found for 1:net-snmp-5.3.2.2-17.el5_8.1.x86_64
No source RPM found for 1:net-snmp-5.3.2.2-17.el5.x86_64
Nothing to download
How do you download all the RPM's inside a metapackage?
It looks to me like your trying to download the source RPMs but they don't exist:
No source RPM found
Why not try to use something like
yum install net-snmp -y --downloadonly --downloaddir=/opt
I am not familiar with yumdownloader but you say you want to download all the RPMs and your example is for net-snmp. I know for sure that reposync will do what you are looking for.
If this still fails, it's likely your repository isn't configured correctly.
reposync --repoid=epel-source --source
