How to boot solaris x86 to single user mode

Here's how to boot Solaris x86 into single user mode:

At the GRUB menu, type 'e' before it times out and takes the default boot option.
Scroll to the default multiuser boot line, then type 'e' egain.
This will bring you in to edit mode. Add a ' -s' at the end of the line.
Press . Scroll up to the root line using the arrow keys, then type 'b' to boot.

Note that the GRUB boot menu is typically stored in /boot/grub/menu.lst OR, if you're running live upgrade, use:

    bootadmin list-menu

to list the available choices.