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attached to the system. There is no guarantee that on the next reboot the network
interface controller will have the same eth# mapping.
BOOTIF=eth0
Indicates to use the MAC address explicitly defined inside the brackets.
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Red Hat Enterprise Linux 5 Hypervisor Deployment Guide
Important
When using PXE to boot Hypervisors for installation using the IPAPPEND 2 directive
causes BOOTIF= to be automatically appended to the kernel arguments. If you
use the IPAPPEND 2 directive you do not need to use the BOOTIF parameter.
ip
Sets the IP address for the network interface controller defined by the BOOTIF parameter. The
ip parameter accepts either an IP address (in the form 0.0.0.0) or the value dhcp (for DHCP).
ip=192.168.1.1
ip=dhcp
netmask
The netmask parameter sets the subnet mask for the IP address defined with the ip
parameter.
netmask=255.255.255.0
gateway
The gateway parameter sets the Internet gateway.
gateway=192.168.1.246
dns
The dns parameter sets the addresses of one or more DNS servers. Each DNS server must be
separated by a colon.
dns=192.168.1.243:192.168.1.244
hostname
The hostname parameter sets the hostname. The hostname must be a fully-qualified and
resolvable domain name.
hostname=rhev1.example.com
ntp
The ntp parameter sets the addresses of one or more Network Time Protocol servers. Each
NTP server must be separated by a colon.
ntp=192.168.2.253:192.168.2.254
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Chapter 5. Installing Red Hat Enterprise Virtualization Hypervisors
vlan
The vlan parameter sets the VLAN identifier for the network connected to the RHEV Manager.
Set this parameter if you are using VLANs.
vlan=VLAN-ID
5.2.5. Red Hat Network (RHN) parameters
These parameters are used to automatically register the hypervisor host with the Red Hat Network
(RHN). At a minimum, either the rhn_activationkey or both the rhn_username and rhn_password
parameters must be provided. If you are registering to a satellite server, you must also provide a value
for the rhn_url parameter.
rhn_username
The rhn_username parameter sets the username used to connect to RHN.
rhn_username=testuser
rhn_password
The rhn_password parameter sets the password used to connect to RHN.
rhn_password=testpassword
rhn_activationkey
The rhn_activationkey parameter sets the activation key used to connect to RHN. Activation
keys are used to register systems, entitle them to an RHN service level, and subscribe them to
specific channels and system groups, all in one action. If both rhn_activationkey and
rhn_username are provided, the rhn_activationkey value will be used.
rhn_activationkey=7202f3b7d218cf59b764f9f6e9fa281b
rhn_url
The rhn_url parameter sets the URL of the satellite server used to register the host.
rhn_url=https://your-satellite.example.com
rhn_ca_cert
The rhn_ca_cert parameter sets the URL of the CA certificate used to connect to the satellite
server. If it is not provided, the default value is rhn_url/pub/RHN-ORG-TRUSTED-SSL-CERT
rhn_ca_cert=https://your-satellite.example.com/pub/RHN-ORG-TRUSTED-SSL-CERT
rhn_profile
The rhn_profile parameter sets the name of the profile to be registered with RHN for this
host. The default value is the system hostname.
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Red Hat Enterprise Linux 5 Hypervisor Deployment Guide
rhn_profile=testhost
5.2.6. Other parameters
management_server
The management_server parameter is required for an automated installation.
The management_server parameter sets the address of the RHEV Manager. The
management_server parameter takes an IP address or fully qualified domain name and,
optionally, a port (the default port is 443). It is required for an automated installation.
management_server=rhev.example.com:443
netconsole_server
The netconsole_server parameter sets the address of the RHEV Manager. The
netconsole_server parameter takes an IP address or fully qualified domain name and,
optionally, a port (the default port is 25285).
netconsole_server=rhev.example.com:25285
mem_overcommit
The mem_overcommit parameter specifies the multiplier to use for adding extra swap to
support memory overcommit. The default overcommit value is 0.5.
mem_overcommit=0.7
firstboot
The firstboot parameter starts the interactive configuration menu. On systems that have a
RHEV Hypervisor installed and some systems with LVM volumes, the firstboot parameter
may be required to trigger the interactive installation. Refer to Section 5.1.2,  The RHEV
Hypervisor Configuration Menu for installation from the configuration menu.
upgrade
The upgrade parameter will upgrade the existing hypervisor image to the version provided by
the boot media. The hypervisor will be automatically upgraded and rebooted once complete. If a
hypervisor image is not yet installed, the image will be installed to the device selected with the
storage_init parameter. When performing an upgrade, the previous boot entry is saved as
BACKUP in grub.conf. If the reboot following the upgrade procedure fails, the BACKUP boot
entry will be automatically selected as the new default.
local_boot
The local_boot parameter is an alias for the upgrade parameter.
nocheck
The nocheck parameter will skip the MD5 check of the installation ISO, which can be time
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Chapter 5. Installing Red Hat Enterprise Virtualization Hypervisors
consuming if the media is remote or slow.
qemu_pxe
The qemu_pxe parameter is used to select which network bootloader is used in virtual
machines. Possible values are gpxe and etherboot. For compatibility with RHEV Hypervisor
5.4-2.1, the default value is etherboot.
qemu_pxe=gpxe
5.2.7. Example: Automated RHEV Hypervisor Installation
This example uses the kernel command line parameters for an automated RHEV Hypervisor installation.
Ensure you customize the example for your environment as not all installations are the same.
Warning
This example may not work accurately on all systems. Review the descriptions of the parameters
above and modify as required for your systems.
The following is a typical example for installing a RHEV Hypervisor with the kernel command line
parameters
In this example, the RHEV Manager is located at the hostname: rhevm.exam ple.com.
:linux storage_init=/dev/sda storage_vol=::::: local_boot BOOTIF=eth0
management_server=rhevm.example.com netconsole=rhevm.example.com
Note
The kernel parameters can be automatically appended to virtual machines booting over a network
with PXE. Automatically installing from PXE is not covered by this guide.
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Red Hat Enterprise Linux 5 Hypervisor Deployment Guide
Chapter 6. Maintaining and Administrating Red Hat Enterprise
Virtualization Hypervisors [ Pobierz całość w formacie PDF ]




 

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