Hello Bart, manually installing package "srvadmin-idracadm7" resolve my problem.
Hello, we have a server R420 with iDrac7 Enterprise. When we tried execute racadm commands we getting this message: The current version of Integrated Dell Remote Access Controller (iDRAC) that do not support the execution of RACADM commands. Contact Dell customer service to upgrade to iDRAC Express or iDRAC EnterpriseThe installed version of RACADM client executable that do not match the generation of the server. RACADM version 7.3.2 Firmware Version  1.51.51 (Build 01) Please advice how to fix this?
RACADM commands not supported