[root@karma nginxrepo]# yum install openssl
Loaded plugins: fastestmirror, presto
Loading mirror speeds from cached hostfile
Setting up Install Process
Nothing to do
[root@karma nginxrepo]# createrepo -n openssl-1.0.0g-1.x86_64.rpm /var/www/repository/nginxrepo
1/1 - openssl-1.0.0g-1.x86_64.rpm
Saving Primary metadata
Saving file lists metadata
Saving other metadata
[root@karma nginxrepo]# createrepo openssl-1.0.0g-1.x86_64.rpm /var/www/repository/nginxrepo
Error: Only one directory allowed per run.
Usage: genpkgmetadata.py [options]

[root@karma nginxrepo]# createrepo -u openssl-1.0.0g-1.x86_64.rpm /var/www/repository/nginxrepo
2/2 - dummy-tomcat-1.0-1.noarch.rpm
Saving Primary metadata
Saving file lists metadata
Saving other metadata