how to use "make mrproper " command? i am working on Linux From Scratch

I am 开发者_JAVA技巧trying to build Linux From Scratch and I have reached till this part : linux headers

Make sure there are no stale files and dependencies lying around from previous activity:

make mrproper

I don't understand: in which directory should I run this command? In one of these?

$LFS/sources/gcc-build
$LFS/sources/gcc-4.4.3

Please Help!

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No, you should run that (an the following) in the directory where you unpacked the kernel source tarball.

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That comes after gcc use

cd $LFS/sources
tar xvjf linux*
cd linux*
make mproper
make headers_check
make INSTALL_HDR_PATH=dest headers_install
cp -rv dest/include/* /tools/include

cd $LFS/sources tells it to change to the sources directory. tar xvjf linux* tells it to untar the lunix api headers directory (the j in xvjf might be a capital) cd linux* tells it to go to the untared directory make mproper is a special use of the make command to specially make this directory make headers_check make INSTALL_HDR_PATH=dest headers_install cp -rv dest/include/* /tools/include tells it to install and test the package

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Running make mrproper or make distclean returns the kernel source tree to its unconfigured state. This means you loose your .config file. You will need to create a new .config file before compiling the kernel.