324 lines
4.4 KiB
HTML
324 lines
4.4 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>Alternative meanings of console</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="Introduction"
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HREF="intro.html"><LINK
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REL="PREVIOUS"
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TITLE="Why use a serial console?"
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HREF="intro-why.html"><LINK
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REL="NEXT"
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TITLE="Configuration overview"
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HREF="intro-config.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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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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><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="intro-why.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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>Chapter 1. Introduction</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="intro-config.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="INTRO-WORD"
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></A
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>1.3. Alternative meanings of <SPAN
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CLASS="QUOTE"
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>"console"</SPAN
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></H1
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><P
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>Some authors use the word <SPAN
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CLASS="QUOTE"
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>"console"</SPAN
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> to refer to
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the keyboard and monitor that are attached to the system unit.
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This is described as a <SPAN
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CLASS="QUOTE"
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>"physical console"</SPAN
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> by some
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<SPAN
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CLASS="SYSTEMITEM"
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>Linux</SPAN
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> documentation. The
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console where system messages appear is described as the
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<SPAN
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CLASS="QUOTE"
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>"logical console"</SPAN
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> by that documentation.</P
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><P
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>As an illustration of the difference, <SPAN
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CLASS="PRODUCTNAME"
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>X
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Windows</SPAN
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> should start on the physical console but
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system messages issued by failures when starting <SPAN
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CLASS="PRODUCTNAME"
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>X
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Windows</SPAN
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> should be written to the logical
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console.</P
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><P
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>To avoid confusion this <I
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CLASS="CITETITLE"
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>HOWTO</I
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> uses the
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word <SPAN
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CLASS="QUOTE"
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>"console"</SPAN
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> to describe the place where system
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messages are printed. This <I
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CLASS="CITETITLE"
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>HOWTO</I
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> uses the
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phrase <SPAN
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CLASS="QUOTE"
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>"attached monitor and keyboard"</SPAN
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> rather than the
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confusing words <SPAN
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CLASS="QUOTE"
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>"physical console"</SPAN
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>.</P
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><P
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>These distinctions are also made in the naming of devices.
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The device <TT
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CLASS="FILENAME"
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>/dev/console</TT
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> is
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used to send messages to the console. The symbolic link <TT
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CLASS="FILENAME"
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>/dev/systty</TT
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> points to the device which
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is used by the attached monitor and keyboard, often <TT
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CLASS="FILENAME"
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>/dev/tty0</TT
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>.</P
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><DIV
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CLASS="TABLE"
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><A
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NAME="INTRO-WORD-CONSOLE"
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></A
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><P
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><B
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>Table 1-1. Different ways of referring to the <SPAN
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CLASS="QUOTE"
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>"console"</SPAN
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></B
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></P
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><TABLE
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BORDER="1"
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CLASS="CALSTABLE"
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><THEAD
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><TR
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><TH
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ALIGN="LEFT"
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VALIGN="TOP"
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>Document</TH
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><TD
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> </TD
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><TD
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> </TD
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></TR
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></THEAD
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><TBODY
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><P
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>This <I
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CLASS="CITETITLE"
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>HOWTO</I
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></P
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><P
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><SPAN
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CLASS="QUOTE"
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>"Console"</SPAN
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></P
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><P
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><SPAN
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CLASS="QUOTE"
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>"Attached monitor and keyboard"</SPAN
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></P
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></TD
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></TR
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><P
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>Some Linux documentation</P
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><P
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><SPAN
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CLASS="QUOTE"
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>"Logical console"</SPAN
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></P
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><P
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><SPAN
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CLASS="QUOTE"
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>"Physical console"</SPAN
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></P
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></TD
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></TR
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><P
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>Device names</P
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><P
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><TT
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CLASS="FILENAME"
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>/dev/console</TT
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></P
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><P
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><TT
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CLASS="FILENAME"
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>/dev/systty</TT
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></P
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></TD
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></TR
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></TBODY
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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="intro-why.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="intro-config.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
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
>Why use a serial console?</TD
|
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><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
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><A
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HREF="intro.html"
|
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ACCESSKEY="U"
|
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>Up</A
|
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></TD
|
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><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
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VALIGN="top"
|
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>Configuration overview</TD
|
|
></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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> |