Description of problem:

I'm unable to set static network details for an interface by passing parameters when booted to install DVD.  I"m using parameters from 20.1. Configuring the Installation System at the Boot Menu <https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html-single/Installation_Guide/index.html#sect-boot-options-installer>.


How reproducible:

Always.

Steps to Reproduce:

1.  Boot RHEL7.2 installation DVD [1]
2.  Select [I]nstall
3.  Press <TAB> to edit
4.  Append a valid network configuration [2]
5.  Proceed with boot to install

[1]: SHA-256: 03f3a0291634335f6995534d829bd21ffaa0d000004dfeb1b2fb81052d64a4d5  RHEL-7.2-20151030.0-Server-x86_64-dvd1.iso downloaded from access.redhat.com

[2]: Example,  ip=192.168.10.15::192.168.10.254:host15:em1:none

Actual results:

dracut: FATAL: For argument 'ip=192.168.10.15::192.168.10.254:host15:em1:none'\nSorry, setting client-ip does not make sense for 'dhcp'
dracut: Refusing to continue



Expected results:
Static network configuration applied to interface; installation proceeds.


Additional info:

https://bugzilla.redhat.com/show_bug.cgi?id=836039

The only way I was able to get connected to the network to perform a non-interactive kickstart network install was to put a dhcp server on the network.  ip=em1:dhcp worked; the system pulled its kickstart and proceeded to perform an installation completely without interaction.