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@@ -2,9 +2,30 @@
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<title>Making the LFS system bootable</title>
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<?dbhtml filename="grub.html" dir="chapter08"?>
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-<para>Now that we have our shiny new Linux-From-Scratch system completed,
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-we need to ensure we can boot it. To do this, we will run the
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-<userinput>grub</userinput> program.</para>
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+<para>Your shiny new LFS system is almost complete. One of the last things to
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+do is ensure you can boot it. The instructions below apply only to computers
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+of IA-32 architecture, i.e. mainstream PC's. Information on "boot loading" for
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+other architectures should be available in the usual resource specific
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+locations for those architectures.</para>
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+
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+<para>Boot loading can be a complex area. First, a few cautionary words. You
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+really should be familiar with your current boot loader and any other
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+operating systems present on your hard drive(s) that you might wish to keep
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+bootable. Please make sure that you have an emergency boot disk ready, so that
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+you can rescue your computer if, by any chance, your computer becomes unusable
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+(unbootable).</para>
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+
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+<para>Earlier, we compiled and installed the Grub boot loader software in
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+preparation for this step. The procedure involves writing some special Grub
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+files to specific locations on the hard drive. Before we get to that, we
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+highly recommend that you create a Grub boot floppy diskette just in case.
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+Insert a blank floppy diskette and run the following commands:</para>
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+
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+<screen><userinput>dd if=/boot/grub/stage1 of=/dev/fd0 bs=512 count=1
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+dd if=/boot/grub/stage2 of=/dev/fd0 bs=512 seek=1</userinput></screen>
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+
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+<para>Remove the diskette and store it somewhere safe. Now we'll run the
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+<userinput>grub</userinput> shell.</para>
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<screen><userinput>grub</userinput></screen>
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@@ -26,13 +47,26 @@ files -- you can use Tab everywhere to make Grub show the alternatives:</para>
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<screen><userinput>root (hd0,3)</userinput></screen>
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+<!-- HACK - Force some whitespace to appease tidy -->
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+<literallayout></literallayout>
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+
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+<warning><para>The following command will overwrite your current boot loader.
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+Don't run the command if this is not what you want. For example, you may be
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+using a third party boot manager to manage your MBR (Master Boot Record). In
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+this scenario, it would probably make more sense to install Grub into the
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+"boot sector" of the LFS partition, in which case the command would become
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+<userinput>setup (hd0,3)</userinput>:</para></warning>
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+
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+<!-- HACK - Force some whitespace to appease tidy -->
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+<literallayout></literallayout>
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+
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<para>Then tell it to install itself into the MBR (Master Boot Record) of
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<filename>hda</filename>:</para>
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<screen><userinput>setup (hd0)</userinput></screen>
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<para>If all is well, Grub will have reported finding its files in
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-<filename>/boot/grub</filename>. That's all there was to it:</para>
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+<filename>/boot/grub</filename>. That's all there is to it:</para>
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<screen><userinput>quit</userinput></screen>
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Greg Schafer