Simple steps to cross-build Debian Kernel package. The following steps confirmed working under Stretch.
Install Cross-Build Dependency
apt install fakeroot git kernel-wedge quilt ccache crossbuild-essential-<ARCH>
BTW. The following ARCH support cross-build explained here.
# apt-cache search crossbuild-essential- crossbuild-essential-arm64 - Informational list of cross-build-essential packages crossbuild-essential-armel - Informational list of cross-build-essential packages crossbuild-essential-armhf - Informational list of cross-build-essential packages crossbuild-essential-mipsel - Informational list of cross-build-essential packages crossbuild-essential-powerpc - Informational list of cross-build-essential packages crossbuild-essential-ppc64el - Informational list of cross-build-essential packages
Get DFSG tarball of Kernel
Simple way if it already reached archive:
wget https://deb.debian.org/debian/pool/main/l/linux/linux_4.9.30.orig.tar.xz
Other a few ways to get the pristine tarball of upstream linux kernel:
Example:
# get whole git repo from internet, more than 1GB and may need hours to finish git clone https://kernel.googlesource.com/pub/scm/linux/kernel/git/stable/linux-stable ../linux-stable # generate DFSG compatible kernel source debian/bin/genorig.py ../linux-stable
Clone Git Repo of Debian Kernel
git clone -n https://anonscm.debian.org/git/kernel/linux.git debian-kernel cd debian-kernel # list all tags git tag -l # starting from a release is a good idea git checkout -b stretch debian/4.9.30-2+deb9u2
Cross Build
Take ARM/armel, flavour marvell as example.
export $(dpkg-architecture -aarmel) export PATH=/usr/lib/ccache:$PATH # Build profiles is from: https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/README.source export DEB_BUILD_PROFILES="nopython nodoc pkg.linux.notools" # disable -dbg (debug) package is only possible when distribution="UNRELEASED" in debian/changelog # export DEBIAN_KERNEL_DISABLE_DEBUG=yes fakeroot make -f debian/rules clean fakeroot make -f debian/rules orig fakeroot make -f debian/rules source fakeroot make -f debian/rules.gen setup_armel_none_marvell fakeroot make -f debian/rules.gen binary-arch_armel_none_marvell binary-indep