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diff --git a/chapter05/kernel-exp.sgml b/chapter05/kernel-exp.sgml new file mode 100644 index 000000000..1ff6f17ee --- /dev/null +++ b/chapter05/kernel-exp.sgml @@ -0,0 +1,35 @@ +<sect2> +<title>Command explanations</title> + +<para> +<userinput>yes "" | make config:</userinput> This runs make config and +answers "Y" to every question the config script asks the user. We're not +configuring the real kernel here, we just need to have some sort of +configure file created so that we can run make dep next that will create +a few files in $LFS/usr/src/linux/include/linux like version.h among +others that we will need to compilg Glibc and other packages later in +chroot. +</para> + +<para> +<userinput>make dep:</userinput> make dep checks dependencies and sets +up the dependencies file. We don't really care about the dependency +checks, but what we do care about is that make dep creates those +aforementioned files in $LFS/usr/src/linux/include/linux we will be +needing later on. +</para> + +<para> +<userinput>ln -s ../src/linux/include/linux linux</userinput> and +<userinput>ln -s ../src/linux/include/asm asm:</userinput> These +commands create the linux and asm symlinks in the $LFS/usr/include +directory that point to the proper directories in the Linux source tree. +Packages that need kernel headers include them with lines like #include +<linux/errno.h>. These paths are relative to the /usr/include +directory so the /usr/include/linux link points to the directory +containing the Linux kernel header files. The same goes for the asm +symlink. +</para> + +</sect2> + |