| 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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