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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
This commit is contained in:
Bruce Dubbs
parent
b2a5112963
commit
94cea1d886
@ -1,3 +1,7 @@
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2015-06-24 Bruce Dubbs <bdubbs@linuxfromscratch.org>
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* Unmount network file systems before bringing down the network
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* Spell out some mount/umount options
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2017-03-25 DJ Lucas <dj@linuxfromscratch.org>
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* Bash-4.4 changes no longer allow continue in function to pass to calling
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loop.
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@ -33,7 +33,7 @@
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case "${1}" in
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start)
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log_info_msg "Remounting root file system in read-write mode..."
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mount -o remount,rw / >/dev/null
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mount --options remount,rw / >/dev/null
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evaluate_retval
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# Remove fsck-related file system watermarks.
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@ -46,7 +46,7 @@ case "${1}" in
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# their option list. _netdev denotes a network filesystem.
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log_info_msg "Mounting remaining file systems..."
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mount -a -O no_netdev >/dev/null
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mount --all --test-opts no_netdev >/dev/null
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evaluate_retval
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exit $failed
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;;
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@ -54,11 +54,12 @@ case "${1}" in
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stop)
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# Don't unmount virtual file systems like /run
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log_info_msg "Unmounting all other currently mounted file systems..."
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umount -a -d -r -t notmpfs,nosysfs,nodevtmpfs,noproc,nodevpts >/dev/null
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umount --all --detach-loop --read-only \
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--types notmpfs,nosysfs,nodevtmpfs,noproc,nodevpts >/dev/null
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evaluate_retval
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# Make sure / is mounted read only (umount bug)
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mount -o remount,ro /
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mount --test-opts remount,ro /
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# Make all LVM volume groups unavailable, if appropriate
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# This fails if swap or / are on an LVM partition
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@ -45,6 +45,9 @@ case "${1}" in
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;;
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stop)
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# Unmount any network mounted file systems
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umount --all --force --types nfs,cifs,nfs4
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# Reverse list
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net_files=""
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for file in /etc/sysconfig/ifconfig.*
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@ -42,6 +42,20 @@
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<listitem revision="sysv"> or <listitem revision="systemd"> as
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appropriate for the entry or if needed the entire day's listitem.
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-->
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<listitem revision='sysv'>
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<para>2017-06-24</para>
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<itemizedlist>
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<listitem>
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<para>[bdubbs] - Remove section disussing configuration
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without a network card.</para>
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</listitem>
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<listitem>
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<para>[bdubbs] - Update boot scripts to unmount network
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file systems before bringing down the network.</para>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para>2017-06-21</para>
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<itemizedlist>
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@ -13,7 +13,7 @@
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<indexterm zone="ch-scripts-network">
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<primary sortas="d-network">network</primary>
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<secondary>configuring</secondary></indexterm>
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<!--
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<para>This section only applies if a network card is to be
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configured.</para>
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@ -23,7 +23,7 @@
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from all run-level directories (<filename
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class="directory">/etc/rc.d/rc*.d</filename>) after the bootscripts are
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installed in <xref linkend="ch-scripts-bootscripts"/>.</para>
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-->
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<sect2>
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<title>Creating Network Interface Configuration Files</title>
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@ -31,20 +31,18 @@
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usually depends on the files in <filename
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class="directory">/etc/sysconfig/</filename>. This directory should
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contain a file for each interface to be configured, such as
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<filename>ifconfig.xyz</filename>, where <quote>xyz</quote> is required to
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be a Network Card Interface name (e.g. eth0). Inside this file are
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attributes to this interface, such as its IP address(es), subnet masks, and
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so forth. It is necessary that the stem of the filename be
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<emphasis>ifconfig</emphasis>.</para>
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<filename>ifconfig.xyz</filename>, where <quote>xyz</quote> should describe
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the network card. The interface name (e.g. eth0) is usually appropriate.
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Inside this file are attributes to this interface, such as its IP
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address(es), subnet masks, and so forth. It is necessary that the stem of
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the filename be <emphasis>ifconfig</emphasis>.</para>
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<note><para>If the procedure in the previous section was not used, Udev
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will assign network card interface names based on system physical
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characteristics such as enp2s1. If you are not sure what your interface
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name is, you can always run <command>ip link</command> after you have
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booted your system. Again, it is important that ifconfig.xyz is named
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after correct network card interface name (e.g. ifconfig.enp2s1 or
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ifconfig.eth0) or your network interface will not be initialized during
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the boot process.</para></note>
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name is, you can always run <command>ip link</command> or <command>ls
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/sys/class/net</command> after you have booted your system.
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</para></note>
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<para>The following command creates a sample file for the
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<emphasis>eth0</emphasis> device with a static IP address:</para>
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@ -98,64 +96,6 @@ EOF</userinput></screen>
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<para>For more information see the <command>ifup</command> man page.</para>
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</sect2>
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<!--
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<sect2 id="systemd-net-enable">
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<title>Configuring the Network Interface Card at boot (systemd)</title>
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<para>Enabling of the network interface card configuration
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in systemd is done per interface. To enable network interface card
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configuration at boot, run:</para>
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<screen><userinput>systemctl enable ifupdown@eth0</userinput></screen>
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<para>To disable a previously enabled network interface
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card configuration at boot, run:</para>
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<screen role="nodump"><userinput>systemctl disable ifupdown@eth0</userinput></screen>
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<para>To manually start the network interface card configuration,
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run:</para>
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<screen role="nodump"><userinput>systemctl start ifupdown@eth0</userinput></screen>
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<para>Replace eth0 with the correct network interface card
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name as described on the beginning of this page.</para>
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<note><para>These procedures require the configuration files as specified
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in the previous section.</para></note>
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<note><para>The network card can also be started or stopped
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with the traditional <command>ifup <device></command> or
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<command>ifdown <device></command> commands.</para></note>
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</sect2>
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<sect2 id="systemd2-net-enable">
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<title>Configuring the Network Interface Card for systemd-networkd</title>
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<para>An alternative way to configure a NIC when booting with with
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systemd is to create a configuration file recognized by the
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systemd-networkd daemon. To configure the device create a file similar
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to this:</para>
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<screen role="nodump"><userinput>cat > /etc/systemd/network/10-static-eth0.network << "EOF"
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[Match]
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Name=eth0
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[Network]
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Address=192.168.0.2/24
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Gateway=192.168.0.1
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EOF</userinput></screen>
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<para>You can use multiple .network files if desired. You can also specify
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DHCP=yes instead of the Address and Gateway settings. See the man page for
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systemd.network for more details,</para>
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<note><para>If this method is used, be sure to disable ifupdown@eth0 as
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described in the previous section (if it was enabled).</para></note>
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</sect2>
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-->
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<sect2 id="resolv.conf">
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<title>Creating the /etc/resolv.conf File</title>
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@ -163,11 +103,10 @@ EOF</userinput></screen>
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<primary sortas="e-/etc/resolv.conf">/etc/resolv.conf</primary>
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</indexterm>
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<para>If the system is going to be connected to the Internet, it will
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need some means of Domain Name Service (DNS) name resolution to
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resolve Internet domain names to IP addresses, and vice versa. This is
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best achieved by placing the IP address of the DNS server, available
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from the ISP or network administrator, into
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<para>The system will need some means of obtaining Domain Name Service
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(DNS) name resolution to resolve Internet domain names to IP addresses, and
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vice versa. This is best achieved by placing the IP address of the DNS
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server, available from the ISP or network administrator, into
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<filename>/etc/resolv.conf</filename>. Create the file by running the
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following:</para>
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@ -192,7 +131,9 @@ EOF</userinput></screen>
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second <emphasis>nameserver</emphasis> line from the file. The IP address
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may also be a router on the local network.</para>
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<note><para>The Google Public IPv4 DNS addresses are 8.8.8.8 and 8.8.4.4.</para></note>
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<note>
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<para>The Google Public IPv4 DNS addresses are 8.8.8.8 and 8.8.4.4.</para>
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</note>
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</sect2>
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@ -264,7 +205,7 @@ EOF</userinput></screen>
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<para>Create the <filename>/etc/hosts</filename> file by running:</para>
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<screen><userinput>cat > /etc/hosts << "EOF"
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<literal># Begin /etc/hosts (network card version)
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<literal># Begin /etc/hosts
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127.0.0.1 localhost
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127.0.1.1 <replaceable><FQDN></replaceable> <replaceable><HOSTNAME></replaceable>
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@ -273,7 +214,7 @@ EOF</userinput></screen>
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ff02::1 ip6-allnodes
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ff02::2 ip6-allrouters
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# End /etc/hosts (network card version)</literal>
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# End /etc/hosts</literal>
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EOF</userinput></screen>
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<para>The <replaceable><192.168.1.1></replaceable>,
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@ -283,6 +224,8 @@ EOF</userinput></screen>
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network/system administrator and the machine will be connected to an
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existing network). The optional alias name(s) can be omitted.</para>
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<!-- This is not very useful
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<para>If a network card is not going to be configured, create the
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<filename>/etc/hosts</filename> file by running:</para>
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@ -296,7 +239,7 @@ ff02::1 ip6-allnodes
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ff02::2 ip6-allrouters
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# End /etc/hosts (no network card version)</literal>
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EOF</userinput></screen>
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EOF</userinput></screen> -->
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</sect2>
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@ -1,13 +1,13 @@
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<!ENTITY version "SVN-20170621">
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<!ENTITY version "SVN-20170624">
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<!ENTITY short-version "svn"> <!-- Used below in &blfs-book;
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Change to x.y for release but not -rc releases -->
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<!ENTITY generic-version "development"> <!-- Use "development" or "x.y[-pre{x}]" -->
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<!ENTITY versiond "20170602-systemd">
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<!ENTITY versiond "20170621-systemd">
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<!ENTITY short-versiond "systemd">
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<!ENTITY generic-versiond "systemd">
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<!ENTITY releasedate "June 21, 2017">
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<!ENTITY releasedate "June 24, 2017">
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<!ENTITY copyrightdate "1999-2017"><!-- jhalfs needs a literal dash, not – -->
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<!ENTITY milestone "8.1">
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@ -366,7 +366,7 @@
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<!ENTITY less-ch6-du "3.5 MB">
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<!ENTITY less-ch6-sbu "less than 0.1 SBU">
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<!ENTITY lfs-bootscripts-version "20170325"> <!-- Scripts depend on this format -->
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<!ENTITY lfs-bootscripts-version "20170624"> <!-- Scripts depend on this format -->
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<!ENTITY lfs-bootscripts-size "BOOTSCRIPTS-SIZE KB">
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<!ENTITY lfs-bootscripts-url "&downloads-root;lfs-bootscripts-&lfs-bootscripts-version;.tar.bz2">
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<!ENTITY lfs-bootscripts-md5 "BOOTSCRIPTS-MD5SUM">
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