Summary: How to boot solaris into single user mode.
Date: Around 2014
Refactor: 20 February 2025: Checked links and formatting.

During testing with AD LDAP Authentication for Solaris I managed to get myself locked out of the system, because of errors in the pam.conf file. I used this method to boot into single user mode so I could undo the changes in the configuration file:

1. At the “GRUB” boot menu where you get the boot options press “e” to edit the boot line before the prompt times out.
2. Use the arrow keys to highlight the line that starts with “kernel”
3. Press “e” again to edit the line.
4. Add “ -s” to the end of the line and press <ENTER>
5. Press “b” to boot