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2.2. Install Hosts

Install Red Hat Enterprise Virtualization Hosts
Figure 2.2. Install Red Hat Enterprise Virtualization Hosts

After you have installed the Red Hat Enterprise Virtualization Manager, install the hosts to run your virtual machines. In Red Hat Enterprise Virtualization, you can use either Red Hat Enterprise Virtualization Hypervisor or Red Hat Enterprise Linux as hosts.

2.2.1. Install Red Hat Enterprise Virtualization Hypervisor

This document provides instructions for installing the Red Hat Enterprise Virtualization Hypervisor using a CD. For alternative methods including PXE networks or USB devices, see the Red Hat Enterprise Linux Hypervisor Deployment Guide.
Before installing the Red Hat Enterprise Virtualization Hypervisor, you need to download the hypervisor image from the Red Hat Network and create a bootable CD with the image. This procedure can be performed on any machine running Red Hat Enterprise Linux.
To prepare a Red Hat Enterprise Virtualization Hypervisor installation CD
  1. Download the latest version of the rhev-hypervisor* package from Red Hat Network. The list of hypervisor packages is located at the Red Hat Enterprise Virtualization Hypervisor (v.6 x86-64) channel.
  2. Install the RPM on a Red Hat Enterprise Linux system. You must log in as the root user and navigate to the location of the downloaded file to perform this step.
    # yum localinstall rhev-hypervisor*.rpm
  3. Insert a blank CD into your CD writer. Use the cdrecord utility to burn the hypervisor ISO image onto your disc. Run:
    # cdrecord dev=/dev/cdrw /usr/share/rhev-hypervisor/rhev-hypervisor.iso
You have created a Red Hat Enterprise Virtualization Hypervisor installation CD, now you can use it to boot the machine designated as your hypervisor host. For this guide you will use the interactive installation where you are prompted to configure your settings in a graphical interface. Use the following keys to navigate around the installation screen:
Menu Navigation Keys
  • Use the Up and Down arrow keys to navigate between selections. Your selections are highlighted in white.
  • The Tab key allows you to move between fields.
  • Use the Spacebar to tick checkboxes, represented by [ ] brackets. A marked checkbox displays with an asterisk (*).
  • To proceed with the selected configurations, press the Enter key.
To configure Red Hat Enterprise Virtualization Hypervisor installation settings
  1. Insert the Red Hat Enterprise Virtualization Hypervisor 6.2-3.0 installation CD into your CD-ROM drive and reboot the machine. When the boot splash screen displays, press the Tab key and select Boot to boot from the hypervisor installation media. Press Enter.
  2. On the installation confirmation screen, select Install RHEV Hypervisor and press Enter.
  3. The installer automatically detects the drives attached to the system. The selected disk for booting the hypervisor is highlighted in white. Ensure that the local disk is highlighted, otherwise use the arrow keys to select the correct disk. Select Continue and press Enter.
  4. You are prompted to confirm your selection of the local drive, which is marked with an asterisk. Select Continue and press Enter.
  5. Enter a password for local console access and confirm it. Select Install and press Enter. The Red Hat Enterprise Virtualization Hypervisor partitions the local drive, then commences installation.
  6. Once installation is complete, a dialog prompts you to Reboot the hypervisor. Press Enter to confirm. Remove the installation disc.
  7. After the hypervisor has rebooted, you will be taken to a login shell. Log in as the admin user with the password you provided during installation to enter the Red Hat Enterprise Virtualization Hypervisor management console.
  8. On the hypervisor management console, there are eight tabs on the left. Press the Up and Down keys to navigate between the tabs and Enter to access them.
    1. Select the Network tab. Configure the following options:
      • Hostname: Enter the hostname in the format of hostname.domain.example.com.
      • DNS Server: Enter the Domain Name Server address in the format of 192.168.0.254. You can use up to two DNS servers.
      • NTP Server: Enter the Network Time Protocol server address in the format of rhel.pool.ntp.org. This synchronizes the hypervisor's system clock with that of the manager's. You can use up to two NTP servers. Select Apply and press Enter to save your network settings.
      • The installer automatically detects the available network interface devices to be used as the management network. Select the device and press Enter to access the interface configuration menu. Under IPv4 Settings, tick either the DHCP or Static checkbox. If you are using static IPv4 network configuration, fill in the IP Address, Netmask and Gateway fields.
      To confirm your network settings, select OK and press Enter.
    2. Select the RHEV-M tab. Configure the following options:
      • Management Server: Enter the Red Hat Enterprise Virtualization Manager domain name in the format of rhevm.demo.redhat.com.
      • Management Server Port: Enter the management server port number. The default is 8443.
      • Connect to the RHEV Manager and Validate Certificate: Tick this checkbox if you wish to verify the RHEVM security certificate.
      • Set RHEV-M Admin Password: This field allows you to specify the root password for the hypervisor, and enable SSH password authentication from the Red Hat Enterprise Virtualization Manager. This field is optional, and is covered in more detail in the Red Hat Enterprise Virtualization Installation Guide.
      Select Apply and press Enter. A dialog displays, asking you to connect the hypervisor to the Red Hat Enterprise Virtualization Manager and validate its certificate. Select Approve and press Enter. A message will display notifying you that the manager configuration has been successfully updated.
    3. Under the Red Hat Network tab, you can register the host with the Red Hat Network. This enables the host to run Red Hat Enterprise Linux virtual machines with proper RHN entitlements. Configure the following settings:
      • Enter your Red Hat Network credentials in the Login and Password fields.
      • To select the method by which the hypervisor receives updates, tick either the RHN or Satellite checkboxes. Fill in the RHN URL and RHN CA fields.
      To confirm your RHN settings, select Apply and press Enter.
    4. Accept all other default settings. For information on configuring security, logging, kdump and remote storage, refer to the Red Hat Enterprise Linux 6 Hypervisor Deployment Guide.
    5. Finally, select the Status tab. Select Restart and press Enter to reboot the host and apply all changes.
You have now successfully installed the Red Hat Enterprise Virtualization Hypervisor. Repeat this procedure if you wish to use more hypervisors. The following sections will provide instructions on how to approve the hypervisors for use with the Red Hat Enterprise Virtualization Manager.