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380 lines
11 KiB
380 lines
11 KiB
#!/bin/bash
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source /etc/make.conf
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progname=cl-kernel
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OVERLAY_DIRECTORY="/usr/local/portage/layman/calculate"
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[[ -d "/var/lib/layman/calculate" ]] &&
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OVERLAY_DIRECTORY="/var/lib/layman/calculate"
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KERNEL_CONFIG_DIR="${OVERLAY_DIRECTORY}/profiles/kernel"
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SHORTOPTS="k:c:e:hmoq"
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LONGOPTS="help,kerneldir:,kernel-config:,extraversion:,no-clean,menuconfig,use-own-config,quiet,lvm,dmraid,mdadm"
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print_help() {
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cat <<'EOF'
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Usage: cl-kernel [options] [-c FILE|-o]
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Make kernel.
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Options:
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-c, --kernel-config FILE Kernel configuration file to use for compilation
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--dmraid Include RMRAID support
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-e, --extraversion VER Specify extraversion for kernel
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-h, --help Print this help message
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-k, --kerneldir DIR Location of the kernel sources
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--lvm Include LVM support
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--mdadm Copy /etc/mdadm.conf to initramfs
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-m, --menuconfig Run menuconfig after oldconfig
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--no-clean Do not run make clean before compilation
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-o, --use-own-config Use config from kernel directory.
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-q, --quiet Do not display kernel compilation process
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Examples:
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The most common use is to run it like this, which build and install current kernel.
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$ cl-kernel
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$ cl-kernel --menuconfig --kerneldir /usr/src/linux-2.6.31-gentoo-r6
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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=$1
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OKV=${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}
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KERNEL_VERSION=${OKV}${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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get_value() {
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sed -rn "s/^$1=\"?([^\"]*)\"?$/\1/p" $2
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}
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set_param() {
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local paramname=$1
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local paramvalue=$2
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local filename=$3
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sed -ri "s/^$paramname = .*$/$paramname = $paramvalue/" $filename
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}
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set_kernel_version() {
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set_param VERSION $KV_MAJOR ${KERNEL_DIR}/Makefile
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set_param PATCHLEVEL $KV_MINOR ${KERNEL_DIR}/Makefile
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set_param SUBLEVEL $KV_PATCH ${KERNEL_DIR}/Makefile
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set_param EXTRAVERSION $KV_TYPE ${KERNEL_DIR}/Makefile
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}
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get_stdin_value() {
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sed -rn "s/^(.*\s+)?+$1=\"?([^\" ]*)\"?(\s+.*|$)/\2/p"
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}
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change_kernel_in_grub() {
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local ROOTDEV=$( get_stdin_value root < /proc/cmdline )
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local NAMESUFFIX=$1
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[[ -f /boot/vmlinuz-${NAMESUFFIX} ]] &&
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[[ -f /boot/initramfs-${NAMESUFFIX} ]] &&
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[[ -f /boot/initramfs-${NAMESUFFIX}-install ]] &&
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[[ -f /boot/grub/grub.conf ]] &&
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sed -ri "/^title/{ #find title in grub.conf
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:readnextline;N; #read next line
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s/\ninitrd/&/; #if pattern not contents initrd
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Treadnextline; #goto read next line
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:changemenuitem; #else try change menuitem
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s|root=${ROOTDEV}|&|; #if menuitem not for the system
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Tskipmenuitem; #then skip menuitem
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s|(/boot/vmlinuz)[^ ]+|\1-${NAMESUFFIX}|; #else change vmlinuz
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s|initrd (.*)-install$|initrd \1/install|; #hide '-install'
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s|(/boot/initramfs)[^ /]+|\1-${NAMESUFFIX}|; #change initramfs
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s|/install$|-install|; #show '-install'
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:skipmenuitem;
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}" /boot/grub/grub.conf
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}
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initramfs_unpack() {
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mkdir -p tmp/initramfs ||
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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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arcmd="gzip"
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# check may be initramfs packed by lzma
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lzma -dc ${BOOT_DIR}/initramfs-${KERNEL_NAME}-*-${KERNEL_VERSION} \
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&>/dev/null && arcmd="lzma"
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${arcmd} -dc ${BOOT_DIR}/initramfs-${KERNEL_NAME}-*-${KERNEL_VERSION} |
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cpio -di &>/dev/null || die "Cann't unpack initramfs"
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}
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initramfs_clean() {
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# remove sound moudles
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find -name sound -exec rm -rf {} \; &>/dev/null
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}
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initramfs_pack() {
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# pack new initramfs
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find * | cpio -o --quiet -H newc |
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gzip -9 >${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 ||
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warning "Cann't remove temporary directory contenting initramfs"
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}
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set_new_current_kernel() {
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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 &&
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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 &&
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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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# mv file to file with suffix and fix symlink to this file
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old_file() {
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local dir=$1
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local filename=$2
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local suffix=$3
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mv -f ${dir}/${filename} ${dir}/${filename}${suffix} &>/dev/null &&
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[[ -f ${dir}/${filename}${suffix} ]] &&
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find ${dir} -lname "$filename" -exec ln -sf ${filename}${suffix} {} \;
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}
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detect_linux_shortname() {
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local makeprofile=$(readlink /etc/make.profile)
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local profile=
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local system=
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local shortname=
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while [[ $profile != "calculate" && $profile != "." ]]
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do
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shortname=$system
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system=$profile
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profile=$(basename $makeprofile)
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makeprofile=$(dirname $makeprofile)
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done
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if [[ $profile == "calculate" ]]
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then
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echo $shortname
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else
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echo "gentoo"
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fi
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}
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install_kernel() {
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local NEW_KERNEL_VERSION=${KERNEL_VERSION/-calculate}-`arch`-$(detect_linux_shortname)
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old_file ${BOOT_DIR} vmlinuz-${NEW_KERNEL_VERSION} .old
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old_file ${BOOT_DIR} System.map-${NEW_KERNEL_VERSION} .old
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old_file ${BOOT_DIR} initramfs-${NEW_KERNEL_VERSION} .old
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old_file ${BOOT_DIR} initramfs-${NEW_KERNEL_VERSION}-install .old
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old_file ${BOOT_DIR} vmlinuz .old
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old_file ${BOOT_DIR} System.map .old
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old_file ${BOOT_DIR} initrd .old
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old_file ${BOOT_DIR} initrd-install .old
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old_file ${BOOT_DIR} config-${NEW_KERNEL_VERSION} .old
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mv ${BOOT_DIR}/kernel-${KERNEL_NAME}-*-${KERNEL_VERSION} \
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${BOOT_DIR}/vmlinuz-${NEW_KERNEL_VERSION}
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ln -sf vmlinuz-${NEW_KERNEL_VERSION} ${BOOT_DIR}/vmlinuz
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mv ${BOOT_DIR}/System.map-${KERNEL_NAME}-*-${KERNEL_VERSION} \
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${BOOT_DIR}/System.map-${NEW_KERNEL_VERSION}
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ln -sf System.map-${NEW_KERNEL_VERSION} ${BOOT_DIR}/System.map
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cp ${BOOT_DIR}/initramfs-${KERNEL_NAME}-*-${KERNEL_VERSION} \
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${BOOT_DIR}/initramfs-${NEW_KERNEL_VERSION}
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ln -sf initramfs-${NEW_KERNEL_VERSION} ${BOOT_DIR}/initrd
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mv ${BOOT_DIR}/initramfs-${KERNEL_NAME}-*-${KERNEL_VERSION} \
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${BOOT_DIR}/initramfs-${NEW_KERNEL_VERSION}-install
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ln -sf initramfs-${NEW_KERNEL_VERSION}-install ${BOOT_DIR}/initrd-install
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cp ${KERNEL_DIR}/.config ${BOOT_DIR}/config-${NEW_KERNEL_VERSION}
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change_kernel_in_grub ${NEW_KERNEL_VERSION}
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}
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KERNEL_DIR=/usr/src/linux
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KERNEL_CONFIG=
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USE_OWN_CONFIG=false
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SYSTEMNAME=$(sed -nr '/^system=/ s/^[^=]+=(.*)$/\1/p' \
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/etc/calculate/calculate.ini)
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KERNEL_NAME=${SYSTEMNAME}
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KERNEL_VERSION=
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DESTINATION=
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KERNEL_EXTRAVERSION=
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ARCH=`arch`
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NOCLEAN=""
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MENUCONFIG=""
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GENKERNEL_RAW_OPTS=""
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LOGLEVEL="--loglevel=2"
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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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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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-m|--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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-o|--use-own-config)
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[[ -n $KERNEL_CONFIG ]] &&
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die "Option '$1' cannot be used in conjunction with '--kernel-config'"
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USE_OWN_CONFIG=true
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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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[[ $USE_OWN_CONFIG == "true" ]] &&
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die "Option '$1' cannot be used in conjunction with '--use-own-config'"
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KERNEL_CONFIG=$2
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shift 2
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;;
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-e|--extraversion)
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KERNEL_EXTRAVERSION=$2
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shift 2
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;;
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-q|--quiet)
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LOGLEVEL="--loglevel=1"
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shift
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;;
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--lvm)
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GENKERNEL_RAW_OPTS="${GENKERNEL_RAW_OPTS} --lvm"
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shift
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;;
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--dmraid)
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GENKERNEL_RAW_OPTS="${GENKERNEL_RAW_OPTS} --dmraid"
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shift
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;;
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--mdadm)
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GENKERNEL_RAW_OPTS="${GENKERNEL_RAW_OPTS} --mdadm"
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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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die "unknown second option: $1"
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;;
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esac
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done
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# check kernel directory
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[[ -e ${KERNEL_DIR}/Makefile ]] ||
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die "Wrong kernel sources directory: ${KERNEL_DIR}"
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[[ -z ${DESTINATION} ]] && DESTINATION="/"
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# get it from Makefile of sources
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KERNEL_VERSION=`grep \
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-e ^VERSION -e ^PATCHLEVEL -e ^SUBLEVEL -e ^EXTRAVERSION \
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${KERNEL_DIR}/Makefile \
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| sed -rn "{N;N;N;s/PATCHLEVEL = |SUBLEVEL = /./g;
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s/EXTRAVERSION = |VERSION = |\n//g;p}"`
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MODULE_INS_PATH=${DESTINATION}
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mkdir -p ${DESTINATION}
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BOOT_DIR=${DESTINATION%/}/boot
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# if specify extraversion add - or . before extraversion if it is missed
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if [[ -n ${KERNEL_EXTRAVERSION} ]] && [[ ${KERNEL_EXTRAVERSION:0:1} != [.-] ]]
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then
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if [[ ${KERNEL_EXTRAVERSION:0:1} == [0-9] ]]
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then
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# dot before number
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KERNEL_EXTRAVERSION=.${KERNEL_EXTRAVERSION}
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else
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# else - minus
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KERNEL_EXTRAVERSION=-${KERNEL_EXTRAVERSION}
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fi
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fi
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parse_kernel_version ${KERNEL_EXTRAVERSION}
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set_kernel_version
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# select kernel config (in kernel dir, own config or overlay kernel config)
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# .config.bak used instead .config, because genkernel copy specified kernel
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# config to "kernel directory/.config"
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if [[ ${USE_OWN_CONFIG} != "false" ]] ||
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[[ $( readlink -f "${KERNEL_CONFIG}" ) == \
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$( readlink -f "${KERNEL_DIR}/.config" ) ]]
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then
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KERNEL_CONFIG="${KERNEL_DIR}/.config.bak"
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[[ -e ${KERNEL_DIR}/.config ]] &&
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cp ${KERNEL_DIR}/.config ${KERNEL_CONFIG} ||
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die "Not found .config in ${KERNEL_DIR}"
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fi
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[[ -z ${KERNEL_CONFIG} ]] &&
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KERNEL_CONFIG="${KERNEL_CONFIG_DIR}/config-${SYSTEMNAME}-${ARCH}-${OKV}"
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[[ -e ${KERNEL_CONFIG} ]] ||
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die "Kernel config not found in ${KERNEL_CONFIG}"
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mkdir -p ${BOOT_DIR}
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# run generating kernel
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genkernel --splash=tty1 --unionfs --all-ramdisk-modules --disklabel \
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--slowusb --kerneldir=${KERNEL_DIR} ${LOGLEVEL} \
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--module-prefix=${MODULE_INS_PATH} --makeopts=${MAKEOPTS} \
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${NOCLEAN} ${MENUCONFIG} --no-save-config \
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--kernel-config=${KERNEL_CONFIG} --kernname=${KERNEL_NAME} \
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--bootdir=${BOOT_DIR} ${GENKERNEL_RAW_OPTS} all || \
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die "kernel was not builded"
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KERNEL_LOCALVERSION=$( get_value CONFIG_LOCALVERSION ${KERNEL_DIR}/.config )
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KERNEL_VERSION=${KERNEL_VERSION}${KERNEL_LOCALVERSION}
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pushd ${DESTINATION} &>/dev/null
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initramfs_unpack
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initramfs_clean
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initramfs_pack
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install_kernel
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set_new_current_kernel
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/usr/calculate/install/calculate --initrd
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if [[ "$(md5sum /boot/initrd | awk '{print $1}')" == \
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"$(md5sum /boot/initrd-install | awk '{print $1}')" ]]
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then
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echo
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echo "Perform command after reboot for optimization initramfs:"
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echo " /usr/calculate/install/calculate --initrd"
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fi
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