295 lines
4.3 KiB
HTML
295 lines
4.3 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>mingetty</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="Configure getty"
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HREF="getty.html"><LINK
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REL="PREVIOUS"
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TITLE="mgetty"
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HREF="getty-mgetty.html"><LINK
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REL="NEXT"
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TITLE="No getty"
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HREF="getty-none.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="getty-mgetty.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 6. Configure <SPAN
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CLASS="PRODUCTNAME"
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>getty</SPAN
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></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="getty-none.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="GETTY-MINGETTY"
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></A
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>6.5. <SPAN
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CLASS="PRODUCTNAME"
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>mingetty</SPAN
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></H1
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><P
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><SPAN
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CLASS="PRODUCTNAME"
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>mingetty</SPAN
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> is designed to be a
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minimal <SPAN
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CLASS="APPLICATION"
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>getty</SPAN
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> for the virtual terminals
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on the the workstation's monitor and keyboard. It has no support
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for serial lines.</P
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><P
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>You must not use <SPAN
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CLASS="APPLICATION"
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>mingetty</SPAN
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> for the
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serial line in <TT
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CLASS="FILENAME"
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>/etc/inittab</TT
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>, but the current
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<SPAN
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CLASS="APPLICATION"
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>mingetty</SPAN
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> entries for the virtual
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terminals can remain.</P
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><P
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>Each virtual terminal uses about 8<SPAN
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CLASS="ACRONYM"
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>KB</SPAN
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> of
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kernel memory. If this matters, it is easy to allocate fewer
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virtual terminals. In the <SPAN
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CLASS="SYSTEMITEM"
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>Linux</SPAN
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> 2.4 kernel virtual terminals are
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created on demand, so not starting
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<SPAN
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CLASS="PRODUCTNAME"
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>mingetty</SPAN
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> on the virtual terminal will
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not create the virtual terminal. If the machine does not have a
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video card then remove all the <SPAN
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CLASS="APPLICATION"
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>mingetty</SPAN
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>
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entries from <TT
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CLASS="FILENAME"
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>/etc/inittab</TT
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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="GETTY-MINGETTY-INITTAB"
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></A
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><P
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><B
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>Figure 6-9. Fewer virtual terminals. Removing
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<SPAN
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CLASS="APPLICATION"
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>mingetty</SPAN
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> entries from
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<TT
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CLASS="FILENAME"
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>/etc/inittab</TT
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></B
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></P
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><TABLE
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BORDER="0"
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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="PROGRAMLISTING"
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>1:2345:respawn:/sbin/mingetty tty1
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# Additional virtual terminals are not used
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2:2345:off:/sbin/mingetty tty2
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3:2345:off:/sbin/mingetty tty3
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4:2345:off:/sbin/mingetty tty4
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5:2345:off:/sbin/mingetty tty5
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6:2345:off:/sbin/mingetty tty6</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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>After restarting <SPAN
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CLASS="APPLICATION"
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>init</SPAN
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> it would be
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wise to remove the unused device files.</P
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><DIV
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CLASS="FIGURE"
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><A
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NAME="GETTY-MINGETTY-DEVTTY"
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></A
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><P
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><B
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>Figure 6-10. Fewer virtual terminals. Deallocating unused virtual
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terminals and removing their device files.</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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><TT
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CLASS="PROMPT"
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>bash#</TT
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> <B
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CLASS="COMMAND"
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>telinit q</B
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>
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<TT
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CLASS="PROMPT"
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>bash#</TT
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> <B
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CLASS="COMMAND"
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>deallocvt /dev/tty[2-9] /dev/tty[0-9][0-9]</B
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>
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<TT
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CLASS="PROMPT"
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>bash#</TT
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> <B
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CLASS="COMMAND"
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>rm /dev/tty[2-9] /dev/tty[0-9][0-9]</B
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> </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="getty-mgetty.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="getty-none.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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><SPAN
|
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CLASS="PRODUCTNAME"
|
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>mgetty</SPAN
|
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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="getty.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%"
|
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ALIGN="right"
|
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VALIGN="top"
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>No <SPAN
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CLASS="PRODUCTNAME"
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>getty</SPAN
|
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></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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> |