How to Use the Preboot Menu to Restore Access to the Serial Console

1. Access the preboot menu.

   For more information, refer to Accessing the Preboot Menu.

2. At the preboot prompt, enter the command:

   Preboot> edit

   The preboot menu enters edit mode.

   In edit mode, the preboot menu displays its selections one-by-one, offering you a chance to change each one.

   • To change a setting, type the new value, then press Enter.

   • To skip to the next setting, press Enter.

3. Press Enter to move through the settings until the serial_is_host setting appears.

   To change the serial_is_host setting, type 0, and then press Enter.

   The preboot menu redisplays the serial_is_host setting with the new value.

4. Press Enter.

   The next setting appears.

5. Press Enter to scroll through the settings until the preboot menu asks you to confirm your changes.

   Enter ”y[es]’ to commit changes: [no]

6. Enter y to confirm your change.

   The preboot menu displays this message:

   Summary: Changed 1 settings.
   Preboot>