&boot-installer-intro-net.xml; On machines with OpenBoot, simply enter the boot monitor on the machine which is being installed (see ). Use the command boot net to boot from a TFTP and RARP server, or try boot net:bootp or boot net:dhcp to boot from a TFTP and BOOTP or DHCP server. &boot-installer-intro-cd.xml; Most OpenBoot versions support the boot cdrom command which is simply an alias to boot from the SCSI device on ID 6 (or the secondary master for IDE based systems). If you cannot boot because you get messages about a problem with IDPROM, then it's possible that your NVRAM battery, which holds configuration information for you firmware, has run out. See the Sun NVRAM FAQ for more information.