Many of us may not want to use the Solaris 10 Default JAVA or KDE default GUI. To startup Solaris 10 default in command Line mode you can make use of one of following:

1. You can use dtconfig command:

To disable GUI:
#/usr/dt/bin/dtconfig -d

To enable GUI:
#/usr/dt/bin/dtconfig -e

2. Disable/enable Service that handles cde-login:

To disable GUI:
#svcadm disable svc:/application/graphical-login/cde-login:default

To enable GUI:
#svcadm disable svc:/application/graphical-login/cde-login:default