464 Chapter 7: Package Management If the revision number of the kernel or kernel-firmware package that you installed during this lab is different, adjust the commands accordingly. Lab 6 This lab is designed to give you practice with both the yum command and the Add/Remove Soft- ware tool. It should help you prepare for Chapter 9, and provide the skills required to install services for other chapters. You should realize by now that since all packages in the Remote Desktop Clients package group are optional, the yum groupinstall "Remote Desktop Clients" command doesn't install anything. You'll need to install each of the optional packages by name. To identify the names of the packages to be installed, run the yum groupinfo "Remote Desktop Clients" command. Be sure to install every package from that group on both systems. The best method is with the yum install package1 package2 ... command, where package1, package2, and so on, are names of packages in the "Remote Desktop Clients" package group.