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Since the output of dmesg(8) is not guaranteed to contain the boot messages,

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suggest users check var/run/dmesg.boot when they need information about their
devices, etc.

Suggested by:	Pierre-Paul Lavoie <ppl@nbnet.nb.ca>
PR:		docs/45981
Reviewed by:	keramida, mheinen
This commit is contained in:
Ceri Davies 2003-01-20 13:19:20 +00:00
parent 4303099df7
commit 2c70db6304
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=15731
4 changed files with 7 additions and 7 deletions
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2
en_US.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
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@ -6197,7 +6197,7 @@ BUSY</literallayout></entry>
<para>Confirm that both computers have a kernel with &man.lpt.4; driver <para>Confirm that both computers have a kernel with &man.lpt.4; driver
support.</para> support.</para>
<screen>&prompt.root; <userinput>dmesg | grep lp</userinput> <screen>&prompt.root; <userinput>grep lp /var/run/dmesg.boot</userinput>
lpt0 at 0x378-0x37f irq 7 on isa lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven lpt0: Interrupt-driven
lp0: TCP/IP capable interface</screen> lp0: TCP/IP capable interface</screen>

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en_US.ISO8859-1/books/handbook/kernelconfig/chapter.sgml
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@ -487,7 +487,7 @@ cpu I686_CPU</programlisting>
sure whether you should use <literal>I586_CPU</literal> or sure whether you should use <literal>I586_CPU</literal> or
<literal>I686_CPU</literal>), however, for a custom kernel, it is <literal>I686_CPU</literal>), however, for a custom kernel, it is
best to specify only the CPU you have. If you are unsure of your best to specify only the CPU you have. If you are unsure of your
CPU type, you can use the &man.dmesg.8; command to view your boot CPU type, you can check the <filename>/var/run/dmesg.boot</filename> file to view your boot
up messages.</para> up messages.</para>
<note><para>In FreeBSD 5.0, support for <literal>I386_CPU</literal> <note><para>In FreeBSD 5.0, support for <literal>I386_CPU</literal>

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en_US.ISO8859-1/books/handbook/multimedia/chapter.sgml
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@ -291,10 +291,10 @@ device csa</programlisting>
<title>Creating and Testing the Device Nodes</title> <title>Creating and Testing the Device Nodes</title>
<indexterm><primary>device nodes</primary></indexterm> <indexterm><primary>device nodes</primary></indexterm>
<para>After you reboot, log in and run <command>dmesg | grep <para>After you reboot, log in and check for the device in the
pcm</command> as shown below:</para> <filename>/var/run/dmesg.boot</filename> file, as shown below:</para>
<screen>&prompt.root; <userinput>dmesg | grep pcm</userinput> <screen>&prompt.root; <userinput>grep pcm /var/run/dmesg.boot</userinput>
pcm0: &lt;SB16 DSP 4.11&gt; on sbc0</screen> pcm0: &lt;SB16 DSP 4.11&gt; on sbc0</screen>
<para>The output from your system may look different. If no <para>The output from your system may look different. If no

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en_US.ISO8859-1/books/handbook/printing/chapter.sgml
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@ -469,7 +469,7 @@
<para>To find out if the kernel you are currently using supports <para>To find out if the kernel you are currently using supports
a serial interface, type:</para> a serial interface, type:</para>
<screen>&prompt.root; <userinput>dmesg | grep sio<replaceable>N</replaceable></userinput></screen> <screen>&prompt.root; <userinput>grep sio<replaceable>N</replaceable> /var/run/dmesg.boot</userinput></screen>
<para>Where <replaceable>N</replaceable> is the number of the <para>Where <replaceable>N</replaceable> is the number of the
serial port, starting from zero. If you see output similar to serial port, starting from zero. If you see output similar to
@ -483,7 +483,7 @@ sio2: type 16550A</screen>
<para>To find out if the kernel supports a parallel interface, <para>To find out if the kernel supports a parallel interface,
type:</para> type:</para>
<screen>&prompt.root; <userinput>dmesg | grep ppc<replaceable>N</replaceable></userinput></screen> <screen>&prompt.root; <userinput>grep ppc<replaceable>N</replaceable> /var/run/dmesg.boot</userinput></screen>
<para>Where <replaceable>N</replaceable> is the number of the <para>Where <replaceable>N</replaceable> is the number of the
parallel port, starting from zero. If you see output similar parallel port, starting from zero. If you see output similar