Symptoms

1. Microupdate installation fails with the error:

   ...
   ' STDERR '/usr/local/pem/sbin/pem-pkg-tool:21: DeprecationWarning: The popen2 module is deprecated.  Use the subprocess module.\n
   ...
   

2. Service node checking fails on verifying required packages (policycoreutils, iptables, yum):

   /usr/local/ppa/bin/check_service_node --ip 203.0.113.2
   ..
   [13 Feb 2015 10:02:54 CET][ERROR] The following errors were detected:
   [13 Feb 2015 10:02:54 CET][ERROR] - The packages policycoreutils, iptables are not installed. Please install them and run the tool again
   [13 Feb 2015 10:02:54 CET][ERROR] - The package yum is not installed. Please install it and run the tool again
   

3. Checkin the mentioned packages manually throws the RPM error:

   # rpm -qa | grep iptables
   error: rpmdbNextIterator: skipping h#    1538 Header V3 RSA/SHA1 Signature, key ID c105b9de: BAD
   error: rpmdbNextIterator: skipping h#     259 Header V3 RSA/SHA1 Signature, key ID c105b9de: BAD
   error: rpmdbNextIterator: skipping h#     518 Header V3 RSA/SHA1 Signature, key ID c105b9de: BAD
   error: rpmdbNextIterator: skipping h#       8 Header V3 RSA/SHA1 Signature, key ID c105b9de: BAD
   error: rpmdbNextIterator: skipping h#    1546 Header V3 RSA/SHA1 Signature, key ID c105b9de: BAD
   

Cause

RPM database is corrupted.

Resolution

The issue is out of Parallels Technical Support scope and should be fixed with the system administrator.