Boot Solaris LDOM Guest into OK prompt

Sometimes, you might need boot your LDOM into OK prompt, below instructions will get you there:

1. Connect LDOM console, either on LDOM Host or other machine if remote connection is enabled
2. On LDOM host, run command
   # ldm set-var auto-boot\?=false <your ldom>
   # ldm stop <your ldom>
   # ldm start <your ldom>
Now, you can see the ok prompt on your console.