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>Chapter 1. PXE Network Installations</TD
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><H1
CLASS="SECT1"
><A
NAME="S1-NETBOOT-PXE-CONFIG"
></A
>1.2. PXE Boot Configuration</H1
><P
> The next step is to copy the files necessary to start the installation
to the <TT
CLASS="COMMAND"
>tftp</TT
> server so they can be found when the
client requests them. The <TT
CLASS="COMMAND"
>tftp</TT
> server is usually
the same server as the network server exporting the installation tree.
</P
><P
> To copy these files, run the
<B
CLASS="APPLICATION"
>Network Booting Tool</B
> on the NFS, FTP, or HTTP
server. A separate PXE server is not necessary.
</P
><P
> For the command line version of these instructions, refer to <A
HREF="s1-netboot-pxe-config.html#S2-NETBOOT-PXEOS"
>Section 1.2.1 <I
>Command Line Configuration</I
></A
>.
</P
><P
> To use the graphical version of the
<B
CLASS="APPLICATION"
>Network Booting Tool</B
>, you must be running the X
Window System, have root privileges, and have the
<TT
CLASS="FILENAME"
>system-config-netboot</TT
> RPM package installed. To
start the <B
CLASS="APPLICATION"
>Network Booting Tool</B
> from the desktop,
go to the <B
CLASS="GUIMENU"
>Main Menu Button</B
> (on the Panel) =>
<B
CLASS="GUIMENUITEM"
>System Settings</B
> => <B
CLASS="GUIMENUITEM"
>Server
Settings</B
> => <B
CLASS="GUIMENUITEM"
>Network Booting
Service</B
>. Or, type the command
<TT
CLASS="COMMAND"
>system-config-netboot</TT
> at a shell prompt (for
example, in an <B
CLASS="APPLICATION"
>XTerm</B
> or a
<B
CLASS="APPLICATION"
>GNOME terminal</B
>).
</P
><P
> If starting the <B
CLASS="APPLICATION"
>Network Booting Tool</B
> for the
first time, select <B
CLASS="GUIBUTTON"
>Network Install</B
> from the
<B
CLASS="GUILABEL"
>First Time Druid</B
>. Otherwise, select
<B
CLASS="GUIMENU"
>Configure</B
> => <B
CLASS="GUIMENUITEM"
>Network
Installation</B
> from the pull-down menu, and then click
<B
CLASS="GUIBUTTON"
>Add</B
>. The dialog in <A
HREF="s1-netboot-pxe-config.html#FIG-NETWORK-INSTALL-SETUP"
>Figure 1-1</A
> is displayed.
</P
><DIV
CLASS="FIGURE"
><A
NAME="FIG-NETWORK-INSTALL-SETUP"
></A
><DIV
CLASS="MEDIAOBJECT"
><P
><IMG
SRC="./figs/pxe/network-install-setup.png"></P
></DIV
><P
><B
>Figure 1-1. Network Installation Setup</B
></P
></DIV
><P
> Provide the following information:
</P
><P
></P
><UL
><LI
><P
><B
CLASS="GUILABEL"
>Operating system identifier</B
> — Provide
a unique name using one word to identify the Red Hat Enterprise Linux version and
variant. It is used as the directory name in the
<TT
CLASS="FILENAME"
>/tftpboot/linux-install/</TT
> directory.</P
></LI
><LI
><P
><B
CLASS="GUILABEL"
>Description</B
> — Provide a brief
description of the Red Hat Enterprise Linux version and variant.</P
></LI
><LI
><P
><B
CLASS="GUILABEL"
>Select protocol for installation</B
> —
Select NFS, FTP, or HTTP as the network installation type depending on
which one was configured previously. If FTP is selected and anonymous
FTP is not being used, uncheck <B
CLASS="GUILABEL"
>Anonymous FTP</B
> and
provide a valid username and password combination.</P
></LI
><LI
><P
><B
CLASS="GUILABEL"
>Server</B
> — Provide the IP address or
domain name of the NFS, FTP, or HTTP server.</P
></LI
><LI
><P
><B
CLASS="GUILABEL"
>Location</B
> — Provide the directory
shared by the network server. If FTP or HTTP was selected, the
directory must be relative to the default directory for the FTP
server or the document root for the HTTP server. For all network
installations, the directory provided must contain the
<TT
CLASS="FILENAME"
>RedHat/</TT
> directory of the installation
tree.</P
></LI
></UL
><P
> After clicking <B
CLASS="GUIBUTTON"
>OK</B
>, the
<TT
CLASS="FILENAME"
>initrd.img</TT
> and <TT
CLASS="FILENAME"
>vmlinuz</TT
> files
necessary to boot the installation program are transfered from
<TT
CLASS="FILENAME"
>images/pxeboot/</TT
> in the provided installation tree
to
<TT
CLASS="FILENAME"
>/tftpboot/linux-install/<TT
CLASS="REPLACEABLE"
><I
><os-identifier></I
></TT
>/</TT
>
on the <TT
CLASS="COMMAND"
>tftp</TT
> server (the one you are running the
<B
CLASS="APPLICATION"
>Network Booting Tool</B
> on).
</P
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="S2-NETBOOT-PXEOS"
></A
>1.2.1. Command Line Configuration</H2
><P
> If the network server is not running X, the <TT
CLASS="COMMAND"
>pxeos</TT
>
command line utility, which is part of the
<TT
CLASS="FILENAME"
>system-config-netboot</TT
> package, can be used to
configure the <TT
CLASS="COMMAND"
>tftp</TT
> server files as described in
<A
HREF="s1-netboot-tftp.html"
>Section 1.4 <I
>Starting the <TT
CLASS="COMMAND"
>tftp</TT
> Server</I
></A
>:
</P
><TABLE
CLASS="SCREEN"
BGCOLOR="#DCDCDC"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="SCREEN"
><TT
CLASS="COMMAND"
>pxeos -a -i "<TT
CLASS="REPLACEABLE"
><I
><description></I
></TT
>" -p <NFS|HTTP|FTP> -D 0 -s <TT
CLASS="REPLACEABLE"
><I
>client.example.com</I
></TT
> \
-L <TT
CLASS="REPLACEABLE"
><I
><net-location></I
></TT
> <TT
CLASS="REPLACEABLE"
><I
><os-identifer></I
></TT
></TT
></PRE
></TD
></TR
></TABLE
><P
> The following list explains the options:
</P
><P
></P
><UL
><LI
><P
><TT
CLASS="OPTION"
>-a</TT
> — Specifies that an OS instance is
being added to the PXE configuration.</P
></LI
><LI
><P
><TT
CLASS="OPTION"
>-i</TT
>
"<TT
CLASS="REPLACEABLE"
><I
><description></I
></TT
>" — Replace
"<TT
CLASS="REPLACEABLE"
><I
><description></I
></TT
>" with a
description of the OS instance. This corresponds to the
<B
CLASS="GUILABEL"
>Description</B
> field in <A
HREF="s1-netboot-pxe-config.html#FIG-NETWORK-INSTALL-SETUP"
>Figure 1-1</A
>.</P
></LI
><LI
><P
><TT
CLASS="OPTION"
>-p</TT
> <NFS|HTTP|FTP> — Specify which
of the NFS, FTP, or HTTP protocols to use for installation. Only
one may be specified. This corresponds to the <B
CLASS="GUILABEL"
>Select
protocol for installation</B
> menu in <A
HREF="s1-netboot-pxe-config.html#FIG-NETWORK-INSTALL-SETUP"
>Figure 1-1</A
>.</P
></LI
><LI
><P
><TT
CLASS="OPTION"
>-D 0</TT
> — Indicates that it is not a
diskless configuration since <TT
CLASS="COMMAND"
>pxeos</TT
> can be used
to configure a diskless environment as well.</P
></LI
><LI
><P
><TT
CLASS="OPTION"
>-s</TT
>
<TT
CLASS="REPLACEABLE"
><I
>client.example.com</I
></TT
> — Provide the
name of the NFS, FTP, or HTTP server after the <TT
CLASS="OPTION"
>-s</TT
>
option. This corresponds to the <B
CLASS="GUILABEL"
>Server</B
> field in
<A
HREF="s1-netboot-pxe-config.html#FIG-NETWORK-INSTALL-SETUP"
>Figure 1-1</A
>.</P
></LI
><LI
><P
><TT
CLASS="OPTION"
>-L</TT
>
<TT
CLASS="REPLACEABLE"
><I
><net-location></I
></TT
> — Provide the
location of the installation tree on that server after the
<TT
CLASS="OPTION"
>-L</TT
> option. This corresponds to the
<B
CLASS="GUILABEL"
>Location</B
> field in
<A
HREF="s1-netboot-pxe-config.html#FIG-NETWORK-INSTALL-SETUP"
>Figure 1-1</A
>.</P
></LI
><LI
><P
><TT
CLASS="REPLACEABLE"
><I
><os-identifer></I
></TT
> —
Specify the OS identifier, which is used as the directory name in
the <TT
CLASS="FILENAME"
>/tftpboot/linux-install/</TT
> directory. This
corresponds to the <B
CLASS="GUILABEL"
>Operating system identifier</B
>
field in <A
HREF="s1-netboot-pxe-config.html#FIG-NETWORK-INSTALL-SETUP"
>Figure 1-1</A
>.</P
></LI
></UL
><P
> If FTP is selected as the installation protocol and anonymous login is
not available, specify a username and password for login, with the
following options before
<TT
CLASS="REPLACEABLE"
><I
><os-identifer></I
></TT
> in the previous
command:
</P
><TABLE
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><TD
><PRE
CLASS="SCREEN"
><TT
CLASS="COMMAND"
>-A 0 -u <TT
CLASS="REPLACEABLE"
><I
><username></I
></TT
> -p <TT
CLASS="REPLACEABLE"
><I
><password></I
></TT
></TT
></PRE
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