Red Hat Enterprise Linux 5 Administration Unleashed

Adding Boot Parameters 77LISTING 2.10GRUB Configuration Filedefault=0timeout=5splashimage=(hd0,0)/boot/grub/splash.xpm.gzhiddenmenutitle Red Hat Enterprise Linux (2.6.16-1.2096)root (hd0,0)kernel /boot/vmlinuz-2.6.16-1.2096 ro root=LABEL=/ rhgb quiet nohtinitrd /boot/initrd-2.6.16-1.2096.img2ELILOIn the /boot/efi/EFI/redhat/elilo.conf file on an Itanium system, the boot parametersare added to the end of the append line. Listing 2.11 shows the 3 parameter added to bootthe system into runlevel 3.LISTING 2.11ELILO Configuration Fileprompttimeout=20default=linuxrelocatableimage=vmlinuz-2.6.9-34.ELlabel=linuxinitrd=initrd-2.6.9-34.EL.imgread-onlyappend=”rhgb quiet root=LABEL=/ 3”OS/400For pre-POWER5 iSeries systems, the /boot/vmlinitrd- file is installedwith each kernel. To add boot parameters, determine the default side with the cat/proc/iSeries/mf/side command, and then execute the following command where are the boot parameter options to add (command divided into two lines withthe \ character for readability):dd if=/boot/vmlinitrd- \of=/proc/iSeries/mf//vmlinux bs=8k YABOOTThe YABOOT configuration file /etc/yaboot.conf contains an image section for eachinstalled kernel. The boot parameters are added to the end of the append line. Listing 2.12shows the 3 parameter added.