Changeset e3a72b1 for chapter08/grub.xml

Timestamp:

10/15/2003 08:31:59 AM (21 years ago)

Author:

Greg Schafer <greg@…>

Branches:

10.0, 10.0-rc1, 10.1, 10.1-rc1, 11.0, 11.0-rc1, 11.0-rc2, 11.0-rc3, 11.1, 11.1-rc1, 11.2, 11.2-rc1, 11.3, 11.3-rc1, 12.0, 12.0-rc1, 12.1, 12.1-rc1, 6.0, 6.1, 6.1.1, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.5-systemd, 7.6, 7.6-systemd, 7.7, 7.7-systemd, 7.8, 7.8-systemd, 7.9, 7.9-systemd, 8.0, 8.1, 8.2, 8.3, 8.4, 9.0, 9.1, arm, bdubbs/gcc13, ml-11.0, multilib, renodr/libudev-from-systemd, s6-init, trunk, v5_0, v5_1, v5_1_1, xry111/arm64, xry111/arm64-12.0, xry111/clfs-ng, xry111/lfs-next, xry111/loongarch, xry111/loongarch-12.0, xry111/loongarch-12.1, xry111/mips64el, xry111/pip3, xry111/rust-wip-20221008, xry111/update-glibc

Children:

8f75224

Parents:

f046b9b

Message:

Expand Grub details and add a warning.

git-svn-id: ​http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2987 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

File:

• chapter08/grub.xml (modified) (3 diffs)

chapter08/grub.xml

@@ -3 +3 @@
 <?dbhtml filename="grub.html" dir="chapter08"?>
 
-<para>Now that we have our shiny new Linux-From-Scratch system completed,
-we need to ensure we can boot it.  To do this, we will run the
-<userinput>grub</userinput> program.</para>
+<para>Your shiny new LFS system is almost complete. One of the last things to
+do is ensure you can boot it. The instructions below apply only to computers
+of IA-32 architecture, i.e. mainstream PC's. Information on "boot loading" for
+other architectures should be available in the usual resource specific
+locations for those architectures.</para>
+
+<para>Boot loading can be a complex area. First, a few cautionary words. You
+really should be familiar with your current boot loader and any other
+operating systems present on your hard drive(s) that you might wish to keep
+bootable. Please make sure that you have an emergency boot disk ready, so that
+you can rescue your computer if, by any chance, your computer becomes unusable
+(unbootable).</para>
+
+<para>Earlier, we compiled and installed the Grub boot loader software in
+preparation for this step. The procedure involves writing some special Grub
+files to specific locations on the hard drive. Before we get to that, we
+highly recommend that you create a Grub boot floppy diskette just in case.
+Insert a blank floppy diskette and run the following commands:</para>
+
+<screen><userinput>dd if=/boot/grub/stage1 of=/dev/fd0 bs=512 count=1
+dd if=/boot/grub/stage2 of=/dev/fd0 bs=512 seek=1</userinput></screen>
+
+<para>Remove the diskette and store it somewhere safe. Now we'll run the
+<userinput>grub</userinput> shell.</para>
 
 <screen><userinput>grub</userinput></screen>
@@ -27 +48 @@
 <screen><userinput>root (hd0,3)</userinput></screen>
 
+<!-- HACK - Force some whitespace to appease tidy -->
+<literallayout></literallayout>
+
+<warning><para>The following command will overwrite your current boot loader.
+Don't run the command if this is not what you want. For example, you may be
+using a third party boot manager to manage your MBR (Master Boot Record). In
+this scenario, it would probably make more sense to install Grub into the
+"boot sector" of the LFS partition, in which case the command would become
+<userinput>setup (hd0,3)</userinput>:</para></warning>
+
+<!-- HACK - Force some whitespace to appease tidy -->
+<literallayout></literallayout>
+
 <para>Then tell it to install itself into the MBR (Master Boot Record) of
 <filename>hda</filename>:</para>
@@ -33 +67 @@
 
 <para>If all is well, Grub will have reported finding its files in
-<filename>/boot/grub</filename>. That's all there was to it:</para>
+<filename>/boot/grub</filename>. That's all there is to it:</para>
 
 <screen><userinput>quit</userinput></screen>