Access the Preboot Menu

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Before You Begin

The Preboot menu runs at 9600 baud only. This cannot be changed.

You must use a terminal or a terminal emulator. You cannot use an SSH, or an RKVMS session.

Before using the Preboot menu, set the terminal or terminal emulator to communicate at 9600 baud.

Caution - Security Hazard. Connecting a terminal or terminal server to the serial port potentially exposes the server to unauthorized access.

Connect a terminal or a computer running terminal emulation software to the server's serial management port using an RJ45 serial cable.
Refer to the Oracle ILOM Documentation Library for additional details.
Ensure that the terminal or computer running terminal emulation software is set for 9600 baud.
Use one of the following methods to boot the SP and interrupt the boot process:
- Recommended - Maximizes security
  1. Enable check_physical_presence. In the Oracle ILOM CLI, type:
    set /SP check_physical_presence=true.
  2. Boot the SP.
    Remove AC power from the system then restore it, or in the Oracle ILOM CLI, type reset /SP.
  3. Press and hold the Locate button on the server front panel until the Preboot menu appears.
- Not Recommended - Increases security risks
  1. Disable check_physical_presence. In the Oracle ILOM CLI, type:
    set /SP check_physical_presence=false
  2. Boot the SP.
    Remove AC power from the system then restore it, or in the Oracle ILOM CLI, type reset /SP.
  3. When you see the following message, type xyzzy:
```
Booting linux in n seconds...
```
    If this message does not appear, or appears and passes too quickly to enter the command, use the Locate button to access the Preboot menu.
The Oracle ILOM Preboot menu appears as shown here.
```
Booting linux in 10 seconds...

ILOM Pre-boot Menu
------------------
Type "h" and [Enter] for a list of commands, or "?" [Enter] for
command-line key bindings.  Type "h cmd" for summary of 'cmd' command.

Warning: SP will warm-reset after 300 seconds of idle time.
Set 'bootretry' to -1 to disable the time-out.

Preboot>
```
When you have finished, enter the boot command to exit the Preboot menu and start Oracle ILOM. Type: boot
Caution - Security Hazard. You must enable check_physical_presence to maintain system security.
Once Oracle ILOM has booted, enable check_physical_presence. In the Oracle ILOM CLI, type:
check_physical_presence=true

Note - You can also enable and disable check_physical_presence in the Preboot menu. For details, see Use the edit Command to Configure the Preboot Menu.

Next Steps