1 | <sect1 id="ch08-lilo">
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2 | <title>Making the LFS system bootable</title>
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3 | <?dbhtml filename="lilo.html" dir="chapter08"?>
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4 |
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5 | <para>In order to be able to boot the LFS system, we need to update our
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6 | bootloader. We're assuming that your host system is using Lilo (since
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7 | that's the most commonly used boot loader at the moment).</para>
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8 |
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9 | <para>We will not be running the lilo program inside chroot. Running lilo
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10 | inside chroot can have fatal side-effects which render your MBR useless
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11 | and you'd need a boot disk to be able to start any Linux system (either
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12 | the host system or the LFS system).</para>
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13 |
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14 | <para>First we'll exit chroot and copy the lfskernel file to the host
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15 | system:</para>
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16 |
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17 | <para><screen><userinput>logout</userinput>
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18 | <userinput>cp $LFS/boot/lfskernel /boot</userinput></screen></para>
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19 |
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20 | <para>The next step is adding an entry to /etc/lilo.conf so that we can
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21 | choose LFS when booting the computer:</para>
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22 |
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23 | <para><screen><userinput>cat >> /etc/lilo.conf << "EOF"</userinput>
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24 | image=/boot/lfskernel
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25 | label=lfs
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26 | root=<partition>
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27 | read-only
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28 | <userinput>EOF</userinput></screen></para>
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29 |
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30 | <para><partition> must be replaced with the LFS
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31 | partition's designation.</para>
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32 |
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33 | <para>Also note that if you are using reiserfs for your root partition,
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34 | the line <userinput>read-only</userinput> should be changed to
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35 | <userinput>read-write</userinput>.</para>
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36 |
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37 | <para>Now, update the boot loader by running:</para>
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38 |
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39 | <para><screen><userinput>/sbin/lilo -v</userinput></screen></para>
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40 |
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41 | <para>The last step is synchronizing the host system's lilo
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42 | configuration files with the LFS system's:</para>
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43 |
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44 | <para><screen><userinput>cp /etc/lilo.conf $LFS/etc
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45 | cp $(grep "image.*=" /etc/lilo.conf | cut -f 2 -d "=") $LFS/boot</userinput></screen></para>
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46 |
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47 | </sect1>
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48 |
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