Do you get this error message?
[Error: failed to retrieve repodata/filelists.xml.gz from rhel-x86_64-server-5
error was [Errno 14] HTTP Error 404: Not Found]
Then try the following commands::
# sudo rhn-profile-sync
# sudo yum clean all
# sudo yum update -y
[Error: failed to retrieve repodata/filelists.xml.gz from rhel-x86_64-server-5
error was [Errno 14] HTTP Error 404: Not Found]
Then try the following commands::
# sudo rhn-profile-sync
# sudo yum clean all
# sudo yum update -y