vi /etc/yum.repos.d/dell-omsa-repository.repo
mirrorlist=http://linux.dell.com/repo/hardware/latest/mirrors.cgi?osname=el6&basearch=$basearch&native=1&sys_ven_id=$sys_ven_id

for CLI install srvadmin-omcommon and srvadmin-omacore

workaround for Fedora:
touch /opt/dell/srvadmin/lib64/openmanage/IGNORE_GENERATION

test:
/opt/dell/srvadmin/bin/omreport chassis info