1 | <sect2>
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2 | <title>Installation of Linux Kernel</title>
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3 |
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4 | <para>
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5 | We won't be compiling a new kernel image yet. We'll do that after we
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6 | have finished the installation of the basic system software in this
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7 | chapter. But because certain software need the kernel header files, we're
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8 | going to unpack the kernel archive now and set it up so that we can
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9 | compile package that need the kernel.
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10 | </para>
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11 |
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12 | <para>
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13 | The kernel configuration file is created by running the following command:
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14 | </para>
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15 |
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16 | <blockquote><literallayout>
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17 | <userinput>make mrproper &&</userinput>
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18 | <userinput>yes "" | make config &&</userinput>
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19 | <userinput>make dep &&</userinput>
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20 | <userinput>cd $LFS/usr/include &&</userinput>
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21 | <userinput>ln -s ../src/linux/include/linux &&</userinput>
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22 | <userinput>ln -s ../src/linux/include/asm</userinput>
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23 | </literallayout></blockquote>
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24 |
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25 | </sect2>
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26 |
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27 | <sect2>
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28 | <title>FHS compliance notes</title>
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29 |
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30 | <para>
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31 | According to the FHS, the /usr/include/linux and /usr/include/asm should be
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32 | actual directories, not symbolic links to the ones belonging to the current
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33 | kernel. The major advantage is that programs will compile with the headers glibc
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34 | was compiled with, and this may prevent some compiling hell. Until now, in all
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35 | of LFS' history, no compiling problem has been reported by using symlinks. So if
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36 | you're tight on space, we recommend using symlinks. But if you want to be FHS
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37 | compliant, replace the two last lines from the commands above with those:
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38 | </para>
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39 |
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40 | <blockquote><literallayout>
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41 | <userinput>cp -r ../src/linux/include/linux . &&</userinput>
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42 | <userinput>cp -r ../src/linux/include/asm .</userinput>
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43 | </literallayout></blockquote>
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44 |
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45 | </sect2>
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46 |
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