parent
1781ce035a
commit
f06c034b82
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#!/bin/bash
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source /etc/make.conf
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progname=cl-kernel
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SHORTOPTS="k:c:t:n:v:e:rh"
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LONGOPTS="help,no-install,kerneldir:,kernel-config:,make-tarball:,kernel-name:,kernel-version:,kernel-extraversion:,remove-splash,no-clean,menuconfig"
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print_help() {
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cat <<'EOF'
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Usage: ${progname} [options] [DESTINATION]
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Make kernel.
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Options:
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-h, --help Print this help message
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-k, --kerneldir DIR Location of the kernel sources
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-c, --kernel-config FILE Kernel configuration file to use for compilation
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-t, --make-tarball FILE Make archive containing kernel,initramfs and modules.
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-n, --kernel-name NAME Tag the kernel and ramdisk with a name:
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If not defined the option defaults to
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'calculate'
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-e, --extraversion VER Specify extraversion for kernel
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-v, --kernel-version VER Specify version for kernel
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-r, --remove-splash Remove splash images from initramfs.
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--no-clean Do not run make clean before compilation
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--menuconfig Run menuconfig after oldconfig
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Examples:
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The most common use is to run it like this, which build and install current kernel.
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$ makekernel
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EOF
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}
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parse_kernel_version() {
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if [[ ${KERNEL_VERSION} =~ ^([0-9]+)\.([0-9]+)\.([0-9]+)([-.].+)?$ ]]
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then
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# version kernel
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KV_MAJOR=${BASH_REMATCH[1]}
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KV_MINOR=${BASH_REMATCH[2]}
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KV_PATCH=${BASH_REMATCH[3]}
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[[ -z $1 ]] && KV_TYPE=${BASH_REMATCH[4]} || KV_TYPE=$1
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KERNEL_VERSION=${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_TYPE}
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else
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echo "Wrong kernel version: ${KERNEL_VERSION}"
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exit 0
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fi
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}
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warning() {
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echo "Warning:"$1 1>&2
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}
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die() {
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echo 1>&2
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echo "Error:"$1 1>&2
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exit 1
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}
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set_kernel_version() {
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sed -ri "s/^VERSION = .*$/VERSION = $KV_MAJOR/" ${KERNEL_DIR}/Makefile
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sed -ri "s/^PATCHLEVEL = .*$/PATCHLEVEL = $KV_MINOR/" ${KERNEL_DIR}/Makefile
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sed -ri "s/^SUBLEVEL = .*$/SUBLEVEL = $KV_PATCH/" ${KERNEL_DIR}/Makefile
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sed -ri "s/^EXTRAVERSION = .*$/EXTRAVERSION = $KV_TYPE/" ${KERNEL_DIR}/Makefile
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}
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initramfs_unpack() {
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mkdir -p tmp/initramfs || die "Catn't create temporary directory for initramfs"
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pushd tmp/initramfs >/dev/null
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# unpack initramfs
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gzip -dc ${BOOT_DIR}/initramfs-${KERNEL_NAME}-*-${KERNEL_VERSION} | cpio -di &>/dev/null || die "Cann't unpack initramfs"
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# remove old initramfs
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rm ${BOOT_DIR}/initramfs-${KERNEL_NAME}-*-${KERNEL_VERSION} || warning "Cann't remove old initramfs"
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}
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initramfs_clean() {
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# remove sound moudles
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find -name sound -exec rm -rf {} \; &>/dev/null
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# remove splash images if need
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[[ ${REMOVE_SPLASH} == 'true' ]] && rm etc/splash/tty1/images/* >/dev/null
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}
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initramfs_pack() {
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# pack new initramfs
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find * | cpio -o --quiet -H newc | gzip -9 >${BOOT_DIR}/initramfs-${KERNEL_NAME}-${KERNEL_VERSION} ||
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die "Cann't pack initramfs"
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popd &>/dev/null
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rm -rf tmp/initramfs || warning "Cann't remove temporary directory with contents of initramfs"
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}
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rename_kernel_systemmap() {
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# rename kernel
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mv ${BOOT_DIR}/kernel-${KERNEL_NAME}-*-${KERNEL_VERSION} ${BOOT_DIR}/linux-${KERNEL_NAME}-${KERNEL_VERSION} || die "Cann't rename kernel"
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# change System.map
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[[ -e ${BOOT_DIR}/System.map-${KERNEL_NAME}-${KERNEL_VERSION} ]] &&
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mv ${BOOT_DIR}/System.map-${KERNEL_NAME}-${KERNEL_VERSION} ${BOOT_DIR}/System.map-${KERNEL_NAME}-${KERNEL_VERSION}.old
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mv ${BOOT_DIR}/System.map-${KERNEL_NAME}-*-${KERNEL_VERSION} ${BOOT_DIR}/System.map-${KERNEL_NAME}-${KERNEL_VERSION} || die "Cann't rename System.map"
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}
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install_kernel() {
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# change kernel
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rm -f ${BOOT_DIR}/vmlinuz.old
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[[ -e ${BOOT_DIR}/vmlinuz ]] && mv ${BOOT_DIR}/vmlinuz ${BOOT_DIR}/vmlinuz.old
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ln -sf linux-${KERNEL_NAME}-${KERNEL_VERSION} ${BOOT_DIR}/vmlinuz
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# change initramfs
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[[ -e ${BOOT_DIR}/initrd ]] && mv ${BOOT_DIR}/initrd ${BOOT_DIR}/initrd.old
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[[ -e ${BOOT_DIR}/initrd-install ]] && mv ${BOOT_DIR}/initrd-install ${BOOT_DIR}/initrd-install.old
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mv ${BOOT_DIR}/initramfs-${KERNEL_NAME}-${KERNEL_VERSION} ${BOOT_DIR}/initrd
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cp ${BOOT_DIR}/initrd ${BOOT_DIR}/initrd-install
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# copy config
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[[ -e ${BOOT_DIR}/config-${KERNEL_NAME}-${KERNEL_VERSION} ]] && \
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mv ${BOOT_DIR}/config-${KERNEL_NAME}-${KERNEL_VERSION} ${BOOT_DIR}/config-${KERNEL_NAME}-${KERNEL_VERSION}.old
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cp ${KERNEL_CONFIG} ${BOOT_DIR}/config-${KERNEL_NAME}-${KERNEL_VERSION}
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# set new current kernel
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if [[ ${KERNEL_DIR} != '/usr/src/linux' ]]
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then
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# if source place in /usr/src
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if [[ ${KERNEL_DIR} =~ ^/usr/src/([^/]+)$ ]]
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then
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rm /usr/src/linux && ln -sf ${BASH_REMATCH[1]} /usr/src/linux
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else
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# is specifed absolutly path
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if [[ ${KERNEL_DIR:0:1} == '/' ]]
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then
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rm /usr/src/linux && ln -sf ${KERNEL_DIR} /usr/src/linux
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fi
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fi
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fi
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}
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make_tarball() {
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# remove symlink for tarball
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find lib -type l -delete || warning "Cann't delete symbolic links"
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tar cjf ${KERNEL_TARBALL} boot lib || die "Cann't create kernel tarbal"
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}
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OPTS=$(getopt -o $SHORTOPTS --long $LONGOPTS -n "$progname" -- "$@")
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if [ $? -ne 0 ]; then
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echo "'$progname --help' for more information" 1>&2
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exit 1
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fi
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eval set -- "$OPTS"
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KERNEL_DIR=
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KERNEL_CONFIG=
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KERNEL_TARBALL=
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KERNEL_NAME=calculate
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KERNEL_VERSION=
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DESTINATION=
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KERNEL_EXTRAVERSION=
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REMOVE_SPLASH=false
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ARCH=`arch`
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NO_INSTALL=false
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NOCLEAN=""
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MENUCONFIG=""
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while [ $# -gt 0 ]; do
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case $1 in
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-h|--help)
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print_help
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exit 0
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;;
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--menuconfig)
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MENUCONFIG="--menuconfig"
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shift
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;;
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--no-clean)
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NOCLEAN="--no-clean"
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shift
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;;
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-k|--kerneldir)
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KERNEL_DIR=$2
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shift 2
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;;
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-c|--kernel-config)
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KERNEL_CONFIG=$2
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shift 2
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;;
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-t|--make-tarball)
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KERNEL_TARBALL=$2
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shift 2
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;;
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-r|--remove-splash)
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REMOVE_SPLASH=true
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shift
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;;
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-n|--kernel-name)
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KERNEL_NAME=$2
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shift 2
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;;
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-v|--kernel-version)
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KERNEL_VERSION=$2
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shift 2
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;;
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-e|--extraversion)
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KERNEL_EXTRAVERSION=$2
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shift 2
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;;
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--no-install)
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NO_INSTALL=true
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shift
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;;
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--)
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shift
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;;
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*)
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if [[ -z ${DESTINATION} ]]
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then
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DESTINATION=$1
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shift
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else
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echo "Error: unknown second option: $1" 1>&2
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exit 1
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fi
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;;
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esac
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done
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[[ -z ${KERNEL_DIR} ]] && KERNEL_DIR="/usr/src/linux"
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[[ -e ${KERNEL_DIR}/Makefile ]] || die "Wrong kernel sources directory: ${KERNEL_DIR}"
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[[ -z ${KERNEL_CONFIG} ]] && KERNEL_CONFIG="${KERNEL_DIR}/.config.bak"
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[[ -z ${DESTINATION} ]] && DESTINATION="/"
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# if kernel_version not defined get it from Makefile of sources
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[[ -z ${KERNEL_VERSION} ]] && \
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KERNEL_VERSION=`grep -e ^VERSION -e ^PATCHLEVEL -e ^SUBLEVEL -e ^EXTRAVERSION \
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${KERNEL_DIR}/Makefile \
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| sed -rn "{N;N;N;s/PATCHLEVEL = |SUBLEVEL = /./g;s/EXTRAVERSION = |VERSION = |\n//g;p}"`
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MODULE_INS_PATH=${DESTINATION}
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mkdir -p ${DESTINATION}
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# tarball should be created in empty directory
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if [[ -n ${KERNEL_TARBALL} ]] && [[ $(ls $DESTINATION | wc -l ) -gt 2 ]];
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then
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die "tarball should be created in empty directory"
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fi
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BOOT_DIR=${DESTINATION%/}/boot
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parse_kernel_version ${KERNEL_EXTRAVERSION}
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set_kernel_version
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mkdir -p ${BOOT_DIR}
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# run generating kernel
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genkernel --splash=tty1 --unionfs --all-ramdisk-modules --disklabel --slowusb --kerneldir=${KERNEL_DIR} --module-prefix=${MODULE_INS_PATH} --makeopts=${MAKEOPTS} ${NOCLEAN} ${MENUCONFIG} --no-save-config --kernel-config=${KERNEL_CONFIG} --kernname=${KERNEL_NAME} --bootdir=${BOOT_DIR} all
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[[ $? -ne 0 ]] && die "kernel was not builded"
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pushd ${DESTINATION} &>/dev/null
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initramfs_unpack
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initramfs_clean
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initramfs_pack
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rename_kernel_systemmap
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[[ -n ${KERNEL_TARBALL} ]] && make_tarball || install_kernel
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Loading…
Reference in new issue