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##### Accessing the Server Output During Installation

Installing the OS requires you to view the system console output. This can appear on both the serial port and the video port.

Note - This topic describes the default video and serial port outputs. Other settings, including console commands and GRUB menu selections, can change this behavior.

Your server is equipped with a serial port and a video port.

- Serial Port – From the moment you start the SP until the OS assumes control of the display, all output appears on the serial port.

  There are two ways to connect to the serial port:

  - Physically, by connecting a cable to the serial port. See How to Configure the Serial Port.

  - Virtually, by configuring an SSH connection to the SP, then by issuing the `start /SP/console` command. See Communicating With the ILOM and the System Console in Sun Fire X4640 Server Installation Guide for more details.

- Video Port – After the SP startup is complete, the system begins POST/BIOS, and displays all output on the video port. This continues until the OS assumes control of the display. Most OS configurations continue to display information on the video port.

  There are two ways to connect to the video port:

  - Physically, by connecting a DB9 cable to the video port on the server. See Installing the Server Hardware in Sun Fire X4640 Server Installation Guide.

  - Virtually, by starting a JavaRConsole session. See Communicating With the ILOM and the System Console in Sun Fire X4640 Server Installation Guide.

Other settings can affect this behavior. They include console commands, ILOM settings, and GRUB settings for operating systems that include a GRUB.

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