Booting from an External Device

Booting from an external device means that your Oracle® Enterprise Session Border Controller connects to a server to retrieve the boot image at boot time. Rather than using an image stored on your system’s flash memory, it downloads the image from the external device each time it reboots.

When you are testing a new image before putting it on your Oracle® Enterprise Session Border Controller, you might want to boot from an external device. Ordinarily, you would not want to boot an image on your Oracle® Enterprise Session Border Controller this way.

To boot an image from an external device:

1. Confirm that the Oracle® Enterprise Session Border Controller is cabled to the network from which you are booting. This is port 0 on the rear panel of the Oracle® Enterprise Session Border Controller chassis (wancom0). The image is loaded from the source using FTP.
2. Log into the system you want to mount.
3. On the Oracle® Enterprise Session Border Controller, configure the information for the boot parameters and confirm the following:
   • boot device—device to which you will FTP

     This parameter value must contain the name of the applicable management interface, and then the number of the appropriate 10/100 port. Usually, this value is wancom0.

   • file name—name on the host of the file containing the image

     The image file must exist in the home directory of the user on the image source.

   • host inet—IPv4 address of the device off of which you are booting
   • gateway inet—IPv4 address of the gateway to use if the device from which you are booting is not on the same network as your Oracle® Enterprise Session Border Controller
   • user—username for the FTP account on the boot host
   • password—password for the FTP account on the boot host
4. Reboot your Oracle® Enterprise Session Border Controller.
5. You are returned to the ACLI login prompt. To continue with system operations, enter the required password information.