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#!/bin/bash
if ! [[ $KERNEL_INSTALL_MACHINE_ID ]]; then
exit 0
fi
[[ -f /etc/default/grub ]] && . /etc/default/grub
[[ -f /etc/os-release ]] && . /etc/os-release
COMMAND="$1"
KERNEL_VERSION="$2"
BOOT_DIR_ABS="$3"
KERNEL_IMAGE="$4"
KERNEL_DIR="${KERNEL_IMAGE%/*}"
MACHINE_ID=$KERNEL_INSTALL_MACHINE_ID
# Remove it, since for grub2 the images are always installed in /boot
rm -rf "${BOOT_DIR_ABS%/*}"
BLS_DIR="/boot/loader/entries"
mkbls() {
local kernelver=$1 && shift
local datetime=$1 && shift
local debugname=""
local debugid=""
local flavor=""
if [[ "$kernelver" == *\+* ]] ; then
local flavor=-"${kernelver##*+}"
if [[ "${flavor}" == "-debug" ]]; then
local debugname=" with debugging"
local debugid="-debug"
fi
fi
cat <<EOF
title ${NAME} (${kernelver}) ${VERSION}${debugname}
version ${kernelver}${debugid}
linux /vmlinuz-${kernelver}
initrd /initramfs-${kernelver}.img
options \$kernelopts
id ${ID}-${datetime}-${kernelver}
grub_users \$grub_users
grub_arg --unrestricted
grub_class kernel${flavor}
EOF
}
[[ "$KERNEL_VERSION" == *\+* ]] && flavor=-"${KERNEL_VERSION##*+}"
case "$COMMAND" in
add)
if [[ "${KERNEL_DIR}" != "/boot" ]]; then
for i in \
"$KERNEL_IMAGE" \
"$KERNEL_DIR"/System.map \
"$KERNEL_DIR"/config \
"$KERNEL_DIR"/zImage.stub \
"$KERNEL_DIR"/dtb
do
[[ -e "$i" ]] || continue
rm -f "/boot/${i##*/}-${KERNEL_VERSION}"
cp -aT "$i" "/boot/${i##*/}-${KERNEL_VERSION}"
command -v restorecon &>/dev/null && \
restorecon -R "/boot/${i##*/}-${KERNEL_VERSION}"
done
# hmac is .vmlinuz-<version>.hmac so needs a special treatment
i="$KERNEL_DIR/.${KERNEL_IMAGE##*/}.hmac"
if [[ -e "$i" ]]; then
rm -f "/boot/.${KERNEL_IMAGE##*/}-${KERNEL_VERSION}.hmac"
cp -a "$i" "/boot/.${KERNEL_IMAGE##*/}-${KERNEL_VERSION}.hmac"
command -v restorecon &>/dev/null && \
restorecon "/boot/.${KERNEL_IMAGE##*/}-${KERNEL_VERSION}.hmac"
fi
# symvers is symvers-<version>.gz symlink, needs a special treatment
i="$KERNEL_DIR/symvers.gz"
if [[ -e "$i" ]]; then
rm -f "/boot/symvers-${KERNEL_VERSION}.gz"
ln -s "$i" "/boot/symvers-${KERNEL_VERSION}.gz"
command -v restorecon &>/dev/null && \
restorecon "/boot/symvers-${KERNEL_VERSION}.gz"
fi
fi
if [[ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]] || [[ ! -f /sbin/new-kernel-pkg ]]; then
eval "$(grub2-get-kernel-settings)" || true
[[ -d "$BLS_DIR" ]] || mkdir -m 0700 -p "$BLS_DIR"
BLS_ID="${MACHINE_ID}-${KERNEL_VERSION}"
BLS_TARGET="${BLS_DIR}/${BLS_ID}.conf"
if [[ -f "${KERNEL_DIR}/bls.conf" ]]; then
cp -aT "${KERNEL_DIR}/bls.conf" "${BLS_TARGET}" || exit $?
else
mkbls "${KERNEL_VERSION}" \
"$(date -u +%Y%m%d%H%M%S -d "$(stat -c '%y' "${KERNEL_DIR}")")" \
>"${BLS_TARGET}"
fi
LINUX="$(grep '^linux[ \t]' "${BLS_TARGET}" | sed -e 's,^linux[ \t]*,,')"
INITRD="$(grep '^initrd[ \t]' "${BLS_TARGET}" | sed -e 's,^initrd[ \t]*,,')"
LINUX_RELPATH="$(grub2-mkrelpath /boot${LINUX})"
BOOTPREFIX="$(dirname ${LINUX_RELPATH})"
ROOTPREFIX="$(dirname "/boot${LINUX}")"
if [[ $LINUX != $LINUX_RELPATH ]]; then
sed -i -e "s,^linux.*,linux ${BOOTPREFIX}${LINUX},g" "${BLS_TARGET}"
sed -i -e "s,^initrd.*,initrd ${BOOTPREFIX}${INITRD},g" "${BLS_TARGET}"
fi
if ( [[ "$KERNEL_VERSION" != *${GRUB_DEFAULT_KERNEL_TYPE}* ]] && \
[ "x$GRUB_NON_STANDARD_KERNEL" == "xtrue" ] ) || \
( echo "$KERNEL_VERSION" | grep -E -q "64k|auto|rt|uki" && \
[ "x$GRUB_NON_STANDARD_KERNEL" != "xtrue" ] ) || \
( [[ "$KERNEL_VERSION" == *debug* ]] && [ "x$GRUB_DEFAULT_TO_DEBUG" != "xtrue" ] ); then
GRUB_UPDATE_DEFAULT_KERNEL=false
fi
# There is a bug which occures in case of several machine ID entries exist in
# /boot/loader/entries - grub doesn't load default entry which is
# set in saved_entry variable by ID (machineID+kernel ver)
# As a temporary workaround we set entry's Title value instead of ID.
BLS_TITLE="$(grep '^title[ \t]' "${BLS_TARGET}" | sed -e 's/^title[ \t]*//')"
if [ "x$GRUB_UPDATE_DEFAULT_KERNEL" = "xtrue" ]; then
if [ -z "${BLS_TITLE}" ]; then
NEWDEFAULT="${BLS_ID}"
else
NEWDEFAULT="${BLS_TITLE}"
fi
fi
if [ "x$GRUB_LINUX_MAKE_DEBUG" = "xtrue" ]; then
ARCH="$(uname -m)"
BLS_DEBUG_ID="$(echo ${BLS_ID} | sed -e "s/${KERNEL_VERSION}/${KERNEL_VERSION}~debug/")"
BLS_DEBUG="$(echo ${BLS_TARGET} | sed -e "s/${KERNEL_VERSION}/${KERNEL_VERSION}~debug/")"
cp -aT "${BLS_TARGET}" "${BLS_DEBUG}"
TITLE="$(grep '^title[ \t]' "${BLS_DEBUG}" | sed -e 's/^title[ \t]*//')"
sed -i -e "s/^title.*/title ${TITLE}${GRUB_LINUX_DEBUG_TITLE_POSTFIX}/" "${BLS_DEBUG}"
sed -i -e "s/^id.*/id ${BLS_DEBUG_ID}/" "${BLS_DEBUG}"
sed -i -e "s/^options.*/options \$kernelopts ${GRUB_CMDLINE_LINUX_DEBUG}/" "${BLS_DEBUG}"
if [ -n "$NEWDEFAULT" -a "x$GRUB_DEFAULT_TO_DEBUG" = "xtrue" ]; then
NEWDEFAULT="${BLS_DEBUG_ID}"
fi
fi
if [ -n "$NEWDEFAULT" ]; then
grub2-editenv - set "saved_entry=${NEWDEFAULT}"
fi
# this probably isn't the best place to do this, but it will do for now.
if [ -e "${ROOTPREFIX}${INITRD}" -a -e "${ROOTPREFIX}${LINUX}" -a \
"${ROOTPREFIX}${INITRD}" -ot "${ROOTPREFIX}${LINUX}" -a \
-x /usr/lib/kernel/install.d/50-dracut.install ]; then
rm -f "${ROOTPREFIX}${INITRD}"
fi
exit 0
fi
/sbin/new-kernel-pkg --package "kernel${flavor}" --install "$KERNEL_VERSION" || exit $?
/sbin/new-kernel-pkg --package "kernel${flavor}" --mkinitrd --dracut --depmod --update "$KERNEL_VERSION" || exit $?
/sbin/new-kernel-pkg --package "kernel${flavor}" --rpmposttrans "$KERNEL_VERSION" || exit $?
# If grubby is used there's no need to run other installation plugins
exit 77
;;
remove)
if [[ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]] || [[ ! -f /sbin/new-kernel-pkg ]]; then
ARCH="$(uname -m)"
BLS_TARGET="${BLS_DIR}/${MACHINE_ID}-${KERNEL_VERSION}.conf"
BLS_DEBUG="$(echo ${BLS_TARGET} | sed -e "s/${KERNEL_VERSION}/${KERNEL_VERSION}~debug/")"
rm -f "${BLS_TARGET}" "${BLS_DEBUG}"
for i in vmlinuz System.map config zImage.stub dtb; do
rm -rf "/boot/${i}-${KERNEL_VERSION}"
done
# hmac is .vmlinuz-<version>.hmac so needs a special treatment
rm -f "/boot/.vmlinuz-${KERNEL_VERSION}.hmac"
# symvers is symvers-<version>.gz symlink, needs a special treatment
rm -f "/boot/symvers-${KERNEL_VERSION}.gz"
exit 0
fi
/sbin/new-kernel-pkg --package "kernel${flavor+-$flavor}" --rminitrd --rmmoddep --remove "$KERNEL_VERSION" || exit $?
# If grubby is used there's no need to run other installation plugins
exit 77
;;
*)
;;
esac