Remove section disussing configuration without a network card.

Update boot scripts to unmount network file systems before bringing down the network.



git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11260 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

1 files changed, 23 insertions, 80 deletions

diff --git a/chapter07/network.xml b/chapter07/network.xml
index 942276478..b5202fb62 100644
--- a/chapter07/network.xml
+++ b/chapter07/network.xml
@@ -13,7 +13,7 @@
   <indexterm zone="ch-scripts-network">
     <primary sortas="d-network">network</primary>
   <secondary>configuring</secondary></indexterm>
-
+<!--
   <para>This section only applies if a network card is to be
   configured.</para>
 
@@ -23,7 +23,7 @@
   from all run-level directories (<filename
   class="directory">/etc/rc.d/rc*.d</filename>) after the bootscripts are
   installed in <xref linkend="ch-scripts-bootscripts"/>.</para>
-
+-->
   <sect2>
     <title>Creating Network Interface Configuration Files</title>
 
@@ -31,20 +31,18 @@
     usually depends on the files in <filename
     class="directory">/etc/sysconfig/</filename>.  This directory should
     contain a file for each interface to be configured, such as
-    <filename>ifconfig.xyz</filename>, where <quote>xyz</quote> is required to
-    be a Network Card Interface name (e.g. eth0).  Inside this file are
-    attributes to this interface, such as its IP address(es), subnet masks, and
-    so forth.  It is necessary that the stem of the filename be
-    <emphasis>ifconfig</emphasis>.</para>
+    <filename>ifconfig.xyz</filename>, where <quote>xyz</quote> should describe
+    the network card.  The interface name (e.g. eth0) is usually appropriate.
+    Inside this file are attributes to this interface, such as its IP
+    address(es), subnet masks, and so forth.  It is necessary that the stem of
+    the filename be <emphasis>ifconfig</emphasis>.</para>
 
     <note><para>If the procedure in the previous section was not used, Udev
     will assign network card interface names based on system physical
     characteristics such as enp2s1. If you are not sure what your interface
-    name is, you can always run <command>ip link</command>  after you have
-    booted your system.  Again, it is important that ifconfig.xyz is named
-    after correct network card interface name (e.g. ifconfig.enp2s1 or
-    ifconfig.eth0) or your network interface will not be initialized during
-    the boot process.</para></note>
+    name is, you can always run <command>ip link</command> or <command>ls
+    /sys/class/net</command> after you have booted your system.  
+    </para></note>
 
     <para>The following command creates a sample file for the
     <emphasis>eth0</emphasis> device with a static IP address:</para>
@@ -98,64 +96,6 @@ EOF</userinput></screen>
     <para>For more information see the <command>ifup</command> man page.</para>
 
   </sect2>
-<!--
-  <sect2 id="systemd-net-enable">
-    <title>Configuring the Network Interface Card at boot (systemd)</title>
-
-    <para>Enabling of the network interface card configuration 
-    in systemd is done per interface. To enable network interface card
-    configuration at boot, run:</para>
-
-<screen><userinput>systemctl enable ifupdown@eth0</userinput></screen>
-
-    <para>To disable a previously enabled network interface
-    card configuration at boot, run:</para>
-
-<screen role="nodump"><userinput>systemctl disable ifupdown@eth0</userinput></screen>
-
-    <para>To manually start the network interface card configuration,
-    run:</para>
-
-<screen role="nodump"><userinput>systemctl start ifupdown@eth0</userinput></screen>
-
-    <para>Replace eth0 with the correct network interface card
-    name as described on the beginning of this page.</para>
-
-    <note><para>These procedures require the configuration files as specified
-    in the previous section.</para></note>
-
-    <note><para>The network card can also be started or stopped
-    with the traditional <command>ifup &lt;device&gt;</command> or
-    <command>ifdown &lt;device&gt;</command> commands.</para></note>
-
-  </sect2>
-
-  <sect2 id="systemd2-net-enable">
-    <title>Configuring the Network Interface Card for systemd-networkd</title>
-
-    <para>An alternative way to configure a NIC when booting with with
-    systemd is to create a configuration file recognized by the
-    systemd-networkd daemon.  To configure the device create a file similar
-    to this:</para>
-
-<screen role="nodump"><userinput>cat &gt; /etc/systemd/network/10-static-eth0.network &lt;&lt; "EOF"
-[Match]
-Name=eth0
-
-[Network]
-Address=192.168.0.2/24
-Gateway=192.168.0.1
-EOF</userinput></screen>
-
-    <para>You can use multiple .network files if desired.  You can also specify
-    DHCP=yes instead of the Address and Gateway settings.  See the man page for
-    systemd.network for more details,</para>
-
-    <note><para>If this method is used, be sure to disable ifupdown@eth0 as 
-    described in the previous section (if it was enabled).</para></note>
-
-  </sect2>
--->
   <sect2 id="resolv.conf">
     <title>Creating the /etc/resolv.conf File</title>
 
@@ -163,11 +103,10 @@ EOF</userinput></screen>
       <primary sortas="e-/etc/resolv.conf">/etc/resolv.conf</primary>
     </indexterm>
 
-    <para>If the system is going to be connected to the Internet, it will
-    need some means of Domain Name Service (DNS) name resolution to
-    resolve Internet domain names to IP addresses, and vice versa. This is
-    best achieved by placing the IP address of the DNS server, available
-    from the ISP or network administrator, into
+    <para>The system will need some means of obtaining Domain Name Service
+    (DNS) name resolution to resolve Internet domain names to IP addresses, and
+    vice versa. This is best achieved by placing the IP address of the DNS
+    server, available from the ISP or network administrator, into
     <filename>/etc/resolv.conf</filename>. Create the file by running the
     following:</para>
 
@@ -192,7 +131,9 @@ EOF</userinput></screen>
     second <emphasis>nameserver</emphasis> line from the file. The IP address
     may also be a router on the local network.</para>
 
-    <note><para>The Google Public IPv4 DNS addresses are 8.8.8.8 and 8.8.4.4.</para></note>
+    <note>
+      <para>The Google Public IPv4 DNS addresses are 8.8.8.8 and 8.8.4.4.</para>
+    </note>
 
   </sect2>
 
@@ -264,7 +205,7 @@ EOF</userinput></screen>
      <para>Create the  <filename>/etc/hosts</filename> file by running:</para>
 
 <screen><userinput>cat &gt; /etc/hosts &lt;&lt; "EOF"
-<literal># Begin /etc/hosts (network card version)
+<literal># Begin /etc/hosts
 
 127.0.0.1 localhost
 127.0.1.1 <replaceable>&lt;FQDN&gt;</replaceable> <replaceable>&lt;HOSTNAME&gt;</replaceable>
@@ -273,7 +214,7 @@ EOF</userinput></screen>
 ff02::1   ip6-allnodes
 ff02::2   ip6-allrouters
 
-# End /etc/hosts (network card version)</literal>
+# End /etc/hosts</literal>
 EOF</userinput></screen>
 
      <para>The <replaceable>&lt;192.168.1.1&gt;</replaceable>,
@@ -282,7 +223,9 @@ EOF</userinput></screen>
      changed for specific uses or requirements (if assigned an IP address by a
      network/system administrator and the machine will be connected to an
      existing network). The optional alias name(s) can be omitted.</para>
-   
+
+<!--  This is not very useful
+
      <para>If a network card is not going to be configured, create the
      <filename>/etc/hosts</filename> file by running:</para>
 
@@ -296,7 +239,7 @@ ff02::1   ip6-allnodes
 ff02::2   ip6-allrouters
 
 # End /etc/hosts (no network card version)</literal>
-EOF</userinput></screen>
+EOF</userinput></screen> -->
 
    </sect2>