When adding vlan network parameter to RHEV Hypervisor install it fails with message "dracut: FATAL: vlan= requires two parameters"

Issue

• In the section 4.2.5. Networking Parameters of the Hypervisor Deployment Guide states the following:

vlan
    The vlan parameter sets the VLAN identifier for the network connected to the Red Hat Enterprise Virtualization Manager. This parameter should be set where VLANs are in use.

    vlan=VLAN-ID

• If it is set this way you will get the following message:

dracut: FATAL: vlan= requires two parameters
dracut: Refusing to continue

Kernel panic - not syncing: Attempted to kill init!
Pid: 1, comm: init Not tainted 2.6.32-358.18.1.e16.x86_64 #1
Call Trace:
 [<ffffffff8150da18>] ? panic+0xa7/0x16f
 [<ffffffff81073be2>] ? do_exit+0x862/8x870
 [<ffffffff81182c55>] ? fput+0x25/0x30
 [<ffffffff81073c48>] ? do_group_exit+0x58/0xd0
 [<ffffffff81073cd7>] ? sys_exit_group+0x17/0x20
 [<ffffffff8100b072>] ? system_call_fastpath+0x16/0x1b