Red Hat Enterprise Linux 5 Administration Unleashed

78CHAPTER 2Post-Installation ConfigurationLISTING 2.12YABOOT Configuration Fileboot=/dev/sda1init-message=Welcome to Red Hat Enterprise Linux!Hit for boot optionspartition=2timeout=30install=/usr/lib/yaboot/yabootdelay=10nonvramimage=/vmlinux--2.6.9-5.ELlabel=linuxread-onlyinitrd=/initrd--2.6.9-5.EL.imgappend=”root=LABEL=/ 3”z/IPLThe z/IPL configuration file /etc/zipl.conf contains a section for each installed kernel.The boot parameters are added to the end of the parameters line. Listing 2.13 shows the 3parameter added.LISTING 2.13z/IPL Configuration File[defaultboot]default=linuxtarget=/boot/[linux]image=/boot/vmlinuz-2.6.9-5.ELramdisk=/boot/initrd-2.6.9-5.EL.imgparameters=”root=LABEL=/ 3”After making changes to the /etc/zipl.conf file, you must execute the /sbin/ziplcommand to enable the changes.SummaryAfter installation, the Setup Agent guides you through the configuration and customizationof the system. A few of the crucial tasks include determining a security level, decidingwhether to enable SELinux, and activating your Red Hat Network account so you canreceive software updates. After logging in for the first time, tweak the network configurationif necessary. If you need to print from the system, configure a printer using thePrinter Configuration Tool. Verify the proper kernel was installed and customize if necessary,and, finally, add boot parameters if needed.