Any experience with gamelift / steamcmd install.sh file?

I’ve been trying to follow https://developer.valvesoftware.com/wiki/SteamCMD#Manually and various other guides for setting this up through the install script; but the basic stuff like : “yum install glibc.i686 libstdc++.i686 -y” or “sudo yum install glibc.i686 libstdc++.i686 -y” fails even. Is there a correct way to get steamcmd installed through linux gamelift?