[Users] Problems when install ovirt-engine from rpm

Hi, I want to install the ovirt-engine from rpm package. Using the guide on wiki page: http://www.ovirt.org/wiki/Installing_ovirt-engine_from_rpm But when I install the ovirt-engine #sudo yum install -y ovirt-engine reported on error: Installing : ovirt-engine- 3.0.0_0001-1.6.fc16.x86_64 1/1 Error unpacking rpm package ovirt-engine-3.0.0_0001-1.6.fc16.x86_64 error: unpacking of archive failed on file /usr/share/jboss-as/modules/org/postgresql/main/postgresql-jdbc.jar;4fa1e777: cpio: mkdir Verifying : ovirt-engine-3.0.0_0001-1.6.fc16.x86_64 1/1 Failed: ovirt-engine.x86_64 0:3.0.0_0001-1.6.fc16 Can anyone tell me what is the matter? -- Best Regards, Cao,Bing Bu