Build cross-compiled kernel debian package
Par Jérôme Pouiller le vendredi, octobre 29 2010, 09:37 – Lien permanent
As you may know, you have juste to add options ARCH and if necessary CROSS_COMPILE to command line:
make ARCH=powerpc CROSS_COMPILE=ppc-linux-gnu- XXX_defconfig
make ARCH=powerpc CROSS_COMPILE=ppc-linux-gnu- XImage
My primary concern is to compile an x86 32bits kernel in 64bits environement. So my compilation line is:
make ARCH=i386 i386_defconfig
make ARCH=i386 bzImage
As you also may know, rule deb-pkg of kernel Makefile is able to create a debian package. You should use fakeroot to be able to create package with a non-root user:
fakeroot make deb-pkg
Nevertheless, it will always create a package for current architecture. So this line will create a package for powerpc:
fakeroot make ARCH=powerpc CROSS_COMPILE=ppc-linux-gnu- deb-pkg
To correct this behavior, you can use DEB_HOST_ARCH variable:
fakeroot make DEB_HOST_ARCH=powerpc ARCH=powerpc CROSS_COMPILE=ppc-linux-gnu- deb-pkg
To summary, to quickly create an x86 32bits kernel debian package in 64bits environement. I do:
mkdir build
make ARCH=i386 O=build i386_defconfig
fakeroot make -j4 DEB_HOST_ARCH=i386 ARCH=i386 O=build deb-pkg
viaBuild cross-compiled kernel debian package – Sysmic.org.