Description of problem:
After install oVirt-node-iso-2.5.0-2.0.fc17.iso correctly,check that not all packages are signed

Version-Release number of selected component (if applicable):
oVirt-node-iso-2.5.0-2.0.fc17.iso

How reproducible:
100%

Steps to Reproduce:
1. Install oVirt-node-iso-2.5.0-2.0.fc17.iso correctly
2. Verify that all packages are signed
  #rpm -qa --qf '%{name}-%{version}-%{release}.%{arch} (%{SIGPGP:pgpsig})\n' | grep -v "Key ID"

Actual results:
[root@localhost admin]# rpm -qa --qf '%{name}-%{version}-%{release}.%{arch} (%{SIGPGP:pgpsig})\n' | grep -v "Key ID"
vdsm-xmlrpc-4.10.0-5.fc17.noarch ((none))
ovirt-node-2.5.0-2.fc17.noarch ((none))
vdsm-reg-4.10.0-5.fc17.noarch ((none))
vdsm-python-4.10.0-5.fc17.x86_64 ((none))
vdsm-cli-4.10.0-5.fc17.noarch ((none))
vdsm-4.10.0-5.fc17.x86_64 ((none))

Expected results:
After executed that command,it should return nothing(if it returns packages with key id field is "none", that's the packages are unsigned).

Additional info:

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