I want to install an OS on a server using IPMI. How do you know the IP address to connect to using IPMI? I have the server plucked into the wall through an Ethernet cable and it should be assigned an IP address from DHCP. I will be connecting from a Mac.
Look into the IP assignments on the DHCP server to find out the assigned address.
I usually connect a KVM (Keyboard Video Mouse, often as a switch) as a first step to configure IPMI with a static address.