Can you use Solaris wanboot to boot a system into single user mode? Google or Sun Docs didn't have the definitive answer for me. Answer is YES T5240, No Keyboard Copyright 2010 Sun Microsystems, Inc. All rights reserved. OpenBoot 4.30.7, 8192 MB memory available, Serial #xxxxxx. Ethernet address 0:ff:ff:ff:f:ff, Host ID: 8xxxxxx. {0} ok {0} ok setenv network-boot-arguments host-ip=10.1.1.1,router-ip=10.1.1.254,subnet-mask=255.255.255.0,hostname=hostname-gd,file=http://172.16.1.1:80/cgi-bin/wanboot-cgi network-boot-arguments = host-ip=10.1.1.1,router-ip=10.1.1.254,subnet-mask=255.255.255.0,hostname=hostname-gd,file=http://172.16.1.1:80/cgi-bin/wanboot-cgi {0} ok boot net -s Boot device: /virtual-devices@100/channel-devices@200/network@0 File and args: -s wanboot info: WAN boot messages->console wanboot info: configuring /virtual-devices@100/channel-devices@200/network@0 wanboot progress: wanbootfs: Read 368 of 368 kB (100%) wanboot info: wanbootfs: Download complete