Red Hat Enterprise Linux 5 Administration Unleashed

Installing with Kickstart 51. NFS server defined by DHCPAs described in the previous section “Making the Kickstart File Accessible,” theDHCP server can send information about the kickstart file located on an NFS serverto the system to be installed. If this configuration is used, use the followingcommand at the boot: prompt:1linux ksNOTEAll of these boot commands assume that the network connection started should usethe first Ethernet device (eth0). To use an alternate Ethernet device, append a spaceand the following to the end of any of the boot commands, replacing withthe Ethernet device name such as eth1 for the second Ethernet card:ksdevice=Installing with PXESome NICs include the ability to boot using a Pre-Execution Environment (PXE). It worksby sending out a broadcast request for a DHCP server on the network. If the DHCP serveris configured to send the client the IP address or hostname of a tftp server and the locationon that tftp server of the files needed to start the Red Hat Enterprise Linux installation,the client can start a network installation without having to boot from local mediasuch as a CD.This method can also be used with kickstart to perform an automated network installation;it allows the administrator to boot multiple systems and then walk away while theclient received first the PXE boot information and then the kickstart file to perform theinstallation.To perform a network installation using PXE boot, use the following steps:1. Create an installation tree for the network install and make it available to thesystems being installed. Refer to the “Creating the Installation Source” sectionearlier in this chapter for details.2. Configure the tftp server.3. Configure the DHCP server.4. Boot the system to start the installation.