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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
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: Interrupt-driven
lp0: TCP/IP capable interface</screen>

2
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
<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
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>
<note><para>In FreeBSD 5.0, support for <literal>I386_CPU</literal>

6
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>
<indexterm><primary>device nodes</primary></indexterm>
<para>After you reboot, log in and run <command>dmesg | grep
pcm</command> as shown below:</para>
<para>After you reboot, log in and check for the device in the
<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>
<para>The output from your system may look different. If no

4
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
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
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,
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
parallel port, starting from zero. If you see output similar