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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@771 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
87 lines
2.0 KiB
XML
87 lines
2.0 KiB
XML
<sect1 id="ch08-lilo">
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<title>Making the LFS system bootable</title>
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<para>
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In order to being able to boot the LFS system, we need to update our
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bootloader. We're assuming that your host system is using Lilo (since
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that's the most commonly used boot loader at the moment).
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</para>
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<para>
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We will not be running the lilo program inside chroot. Running lilo
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inside chroot can have fatal side-effects which render your MBR useless
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and you'd need a boot disk to be able to start any Linux system (either
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the host system or the LFS system).
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</para>
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<para>
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First we'll exit chroot and copy the lfskernel file to the host system:
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</para>
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<para>
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<screen>
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<userinput>logout</userinput>
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<userinput>cp $LFS/boot/lfskernel /boot</userinput>
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</screen>
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</para>
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<para>
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The next step is adding an entry to /etc/lilo.conf so that we can
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choose LFS when booting the computer:
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</para>
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<para>
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<screen>
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<userinput>cat >> /etc/lilo.conf << "EOF"</userinput>
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image=/boot/lfskernel
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label=lfs
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root=<partition>
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read-only
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<userinput>EOF</userinput>
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</screen>
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</para>
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<para>
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<partition> must be replaced by the LFS partition's designation.
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</para>
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<para>
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Now the boot loader gets updated by running:
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</para>
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<para>
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<screen>
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<userinput>/sbin/lilo</userinput>
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</screen>
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</para>
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<para>
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The last step is syncing the host system lilo config. files with the
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LFS system:
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</para>
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<para>
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<screen>
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<userinput>cp /etc/lilo.conf $LFS/etc &&</userinput>
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<userinput>cp <kernel images> $LFS/boot</userinput>
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</screen>
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</para>
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<para>
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To find out which kernel images files are being used, look at the
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/etc/lilo.conf file and find the lines starting with
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<emphasis>image=</emphasis>. If your host system has kernel files in
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other places than the /boot directory, make sure you update the paths
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in the $LFS/etc/lilo.conf file so that it does look for them in the
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/boot directory.
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</para>
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<para>
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As soon as we have booted into LFS we can run
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<userinput>/sbin/lilo</userinput> from the LFS system in order to have
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the latest Lilo version in the MBR.
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</para>
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</sect1>
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