328 lines
5.2 KiB
HTML
328 lines
5.2 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>Configure the BIOS to use the serial
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port</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="Remote Serial Console HOWTO"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Upgrading Red Hat Linux from a
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serial console"
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HREF="rhl.html"><LINK
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REL="PREVIOUS"
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TITLE="Select boot disk"
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HREF="rhl-selectboot.html"><LINK
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REL="NEXT"
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TITLE="Configure modem to ignore DTR and assert
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DCD"
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HREF="rhl-ignoredtr.html"></HEAD
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><BODY
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CLASS="SECTION"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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SUMMARY="Header navigation table"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>Remote Serial Console HOWTO</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="rhl-selectboot.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Appendix C. Upgrading <SPAN
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CLASS="PRODUCTNAME"
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>Red Hat Linux</SPAN
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> from a
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serial console</TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="rhl-ignoredtr.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="SECTION"
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><H1
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CLASS="SECTION"
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><A
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NAME="RHL-BIOSSERIAL"
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></A
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>C.2. Configure the <SPAN
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CLASS="ACRONYM"
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>BIOS</SPAN
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> to use the serial
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port</H1
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><P
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>Many servers allow the <SPAN
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CLASS="ACRONYM"
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>BIOS</SPAN
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> to be configured
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from the serial port, especially on systems designed for rack
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mounting. At the moment few machines designed to be used as
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desktop systems allow the <SPAN
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CLASS="ACRONYM"
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>BIOS</SPAN
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> to be accessed from
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the serial port.</P
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><P
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>Refer to your vendor's documentation to set the
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<SPAN
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CLASS="ACRONYM"
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>BIOS</SPAN
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> to use the serial port. Some vendors call
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this feature <SPAN
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CLASS="QUOTE"
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>"console redirection"</SPAN
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>. Unfortunately, the
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meaning of this term varies by vendor. Some vendors use it to mean
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the redirection of the <SPAN
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CLASS="ACRONYM"
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>VGA</SPAN
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> output and keyboard
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to a remote <SPAN
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CLASS="ACRONYM"
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>PC</SPAN
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> using a proprietary serial
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protocol. This feature can only be used in conjunction with the
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<SPAN
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CLASS="SYSTEMITEM"
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>Linux</SPAN
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> serial console if the
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<SPAN
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CLASS="ACRONYM"
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>BIOS</SPAN
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> can be instructed to disable the serial
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redirection after booting.</P
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><P
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>As an example of the confusion, Dell uses <SPAN
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CLASS="QUOTE"
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>"console
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redirection"</SPAN
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> when describing the <SPAN
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CLASS="PRODUCTNAME"
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>Dell
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2400</SPAN
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> and the <SPAN
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CLASS="PRODUCTNAME"
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>Dell 2450</SPAN
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>.
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The <SPAN
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CLASS="PRODUCTNAME"
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>Dell 2450</SPAN
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> <SPAN
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CLASS="ACRONYM"
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>BIOS</SPAN
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>
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can be configured from the serial port. The <SPAN
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CLASS="PRODUCTNAME"
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>Dell
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2400</SPAN
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>'s <SPAN
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CLASS="QUOTE"
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>"console redirection"</SPAN
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> is
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additional hardware that remotely replicates the computer's
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<SPAN
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CLASS="ACRONYM"
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>VGA</SPAN
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> monitor and keyboard.</P
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><P
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>An example of a <SPAN
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CLASS="ACRONYM"
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>BIOS</SPAN
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> configuration is given
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in <A
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HREF="rhl-biosserial.html#RHL-BIOSSERIAL-EXAMPLE"
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>Figure C-1</A
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>.</P
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><DIV
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CLASS="FIGURE"
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><A
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NAME="RHL-BIOSSERIAL-EXAMPLE"
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></A
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><P
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><B
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>Figure C-1. Configuring <SPAN
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CLASS="ACRONYM"
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>BIOS</SPAN
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> to use serial link</B
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></P
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><TABLE
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BORDER="1"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="SCREEN"
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>BIOS setup console redirection
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Enter BIOS setup during boot when
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Keyboard: [Ctrl+Alt+Esc pressed]
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Serial port: ["HAL" is typed]
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Serial port
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Port: [COM1]
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Speed [9600] bps
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Data: [8] bits
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Parity: [None]
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Stop: [1] bits
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Handshaking: [Full CTS/RTS handshaking]
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Terminal: [Dumb]</PRE
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></FONT
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></TD
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></TR
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></TABLE
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></DIV
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><P
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>Many <SPAN
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CLASS="ACRONYM"
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>BIOSs</SPAN
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> will enter their configuration
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dialogs if a particular terminal key is pressed during the
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<SPAN
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CLASS="ACRONYM"
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>BIOS</SPAN
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> boot. This can be a problem if the modem
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link is noisy.</P
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><P
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>For normal operation, set the boot order to attempt to boot
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from the hard disk first.</P
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><DIV
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CLASS="FIGURE"
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><A
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NAME="RHL-BIOSSERIAL-BOOTORDER"
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></A
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><P
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><B
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>Figure C-2. Configuring BIOS to boot from hard disk</B
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></P
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><TABLE
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BORDER="1"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="SCREEN"
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>BIOS setup boot order
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First: [Hard disk]
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Second: [CD-ROM]
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Third: [Floppy disk]</PRE
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></FONT
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></TD
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></TR
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></TABLE
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></DIV
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
|
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><A
|
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HREF="rhl-selectboot.html"
|
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ACCESSKEY="P"
|
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>Prev</A
|
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></TD
|
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><TD
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WIDTH="34%"
|
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ALIGN="center"
|
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VALIGN="top"
|
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><A
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HREF="index.html"
|
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ACCESSKEY="H"
|
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>Home</A
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></TD
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><TD
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WIDTH="33%"
|
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ALIGN="right"
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VALIGN="top"
|
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><A
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HREF="rhl-ignoredtr.html"
|
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ACCESSKEY="N"
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>Next</A
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></TD
|
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></TR
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><TR
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><TD
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WIDTH="33%"
|
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ALIGN="left"
|
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VALIGN="top"
|
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>Select boot disk</TD
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><TD
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WIDTH="34%"
|
|
ALIGN="center"
|
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VALIGN="top"
|
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><A
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HREF="rhl.html"
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ACCESSKEY="U"
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>Up</A
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></TD
|
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><TD
|
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WIDTH="33%"
|
|
ALIGN="right"
|
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VALIGN="top"
|
|
>Configure modem to ignore <SPAN
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CLASS="ACRONYM"
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>DTR</SPAN
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> and assert
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<SPAN
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CLASS="ACRONYM"
|
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>DCD</SPAN
|
|
></TD
|
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></TR
|
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></TABLE
|
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></DIV
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></BODY
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></HTML
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> |