mirror of
https://src.fedoraproject.org/rpms/grub2.git
synced 2024-10-18 09:51:50 +00:00
d4811852b4
In the old days before BLS, setting the GRUB_DEFAULT_DTB variable would
create a devicetree entry for each kernel, which would be prepended by
/dtb-${kernelver}, so it was possible to test a different dtb per
installed kernel.
In the transition to BLS, the variable was kept but the functionality is
now slightly different. The value of GRUB_DEFAULT_DTB goes to the
grubenv and that dtb is loaded from the /dtb symlink instead, which may
change with kernel installs.
This patch introduces a different variable which restores the previous
behavior, and adds the devicetree entry to each BLS entry, if set.
This variable is not set by default in an install, so it does not affect
users with default settings.
It is useful for developers and users of boards with not yet stable
upstream support, where changes to the dtb may cause behavior
difference. In these cases, it is desirable to not pick the dtb of just
the latest installed kernel, but keep previous kernel+dtb choices
unaffected as a fallback.
Signed-off-by: Erico Nunes <ernunes@redhat.com>
219 lines
9.1 KiB
Bash
Executable file
219 lines
9.1 KiB
Bash
Executable file
#!/bin/bash
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if ! [[ $KERNEL_INSTALL_MACHINE_ID ]]; then
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exit 0
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fi
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[[ -f /etc/default/grub ]] && . /etc/default/grub
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[[ -f /etc/os-release ]] && . /etc/os-release
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COMMAND="$1"
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KERNEL_VERSION="$2"
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BOOT_DIR_ABS="$3"
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KERNEL_IMAGE="$4"
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KERNEL_DIR="${KERNEL_IMAGE%/*}"
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MACHINE_ID=$KERNEL_INSTALL_MACHINE_ID
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# If ${BOOT_DIR_ABS} exists, some other boot loader is active.
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[[ -d "${BOOT_DIR_ABS}" ]] && exit 0
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# UKIs are BLS type 2 entries, 90-uki-copy.install takes care of them
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[ "x$KERNEL_INSTALL_LAYOUT" != "xuki" ] || exit 0
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BLS_DIR="/boot/loader/entries"
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mkbls() {
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local kernelver=$1 && shift
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local datetime=$1 && shift
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local kernelopts=$1 && shift
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local debugname=""
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local debugid=""
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local flavor=""
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local devicetree_entry=""
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if [[ "$kernelver" == *\+* ]] ; then
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local flavor=-"${kernelver##*+}"
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if [[ "${flavor}" == "-debug" ]]; then
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local debugname=" with debugging"
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local debugid="-debug"
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fi
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fi
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# Define devicetree_entry if the user defined GRUB_DEVICETREE
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# in /etc/default/grub, otherwise leave it empty
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if [ -n "$GRUB_DEVICETREE" ] ; then
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local devicetree_entry="devicetree /dtb-${kernelver}/$GRUB_DEVICETREE"
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fi
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cat <<EOF
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title ${NAME} (${kernelver}) ${VERSION}${debugname}
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version ${kernelver}${debugid}
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linux /vmlinuz-${kernelver}
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initrd /initramfs-${kernelver}.img
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options ${kernelopts}
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grub_users \$grub_users
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grub_arg --unrestricted
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grub_class ${ID}
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${devicetree_entry}
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EOF
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}
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[[ "$KERNEL_VERSION" == *\+* ]] && flavor=-"${KERNEL_VERSION##*+}"
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case "$COMMAND" in
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add)
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if [[ "${KERNEL_DIR}" != "/boot" ]]; then
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# rename to match the name used in the pseudo-BLS snippet above
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cp --remove-destination --preserve=timestamps -T "${KERNEL_IMAGE}" "/boot/vmlinuz-${KERNEL_VERSION}"
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command -v restorecon &>/dev/null && \
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restorecon -R "/boot/vmlinuz-${KERNEL_VERSION}"
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for i in \
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"$KERNEL_DIR"/System.map \
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"$KERNEL_DIR"/config \
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"$KERNEL_DIR"/zImage.stub \
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"$KERNEL_DIR"/dtb
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do
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[[ -e "$i" ]] || continue
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cp --remove-destination --preserve=timestamps -rT "$i" "/boot/${i##*/}-${KERNEL_VERSION}"
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command -v restorecon &>/dev/null && \
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restorecon -R "/boot/${i##*/}-${KERNEL_VERSION}"
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done
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# hmac is .vmlinuz-<version>.hmac so needs a special treatment
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i="$KERNEL_DIR/.${KERNEL_IMAGE##*/}.hmac"
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if [[ -e "$i" ]]; then
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cp --remove-destination --preserve=timestamps "$i" "/boot/.${KERNEL_IMAGE##*/}-${KERNEL_VERSION}.hmac"
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command -v restorecon &>/dev/null && \
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restorecon "/boot/.${KERNEL_IMAGE##*/}-${KERNEL_VERSION}.hmac"
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fi
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# OLD method using gzip'd file (will be deprecated and removed in the future)
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# symvers is symvers-<version>.gz symlink, needs a special treatment
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i="$KERNEL_DIR/symvers.gz"
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if [[ -e "$i" ]]; then
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ln -fs "$i" "/boot/symvers-${KERNEL_VERSION}.gz"
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command -v restorecon &>/dev/null && \
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restorecon "/boot/symvers-${KERNEL_VERSION}.gz"
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fi
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# symvers is symvers-<version>.bz symlink, needs a special treatment
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i="$KERNEL_DIR/symvers.bz"
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if [[ -e "$i" ]]; then
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ln -fs "$i" "/boot/symvers-${KERNEL_VERSION}.bz"
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command -v restorecon &>/dev/null && \
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restorecon "/boot/symvers-${KERNEL_VERSION}.bz"
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fi
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fi
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if [[ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]] || [[ ! -f /sbin/new-kernel-pkg ]]; then
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if [[ -f /etc/kernel/cmdline ]]; then
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if [[ /etc/kernel/cmdline -ot /etc/default/grub ]]; then
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# user modified /etc/default/grub manually; sync
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grub2-mkconfig -o /etc/grub2.cfg
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fi
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read -r -d '' -a BOOT_OPTIONS < /etc/kernel/cmdline
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elif [[ -f /usr/lib/kernel/cmdline ]]; then
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read -r -d '' -a BOOT_OPTIONS < /usr/lib/kernel/cmdline
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else
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declare -a BOOT_OPTIONS
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read -r -d '' -a line < /proc/cmdline
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for i in "${line[@]}"; do
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[[ "${i#initrd=*}" != "$i" ]] && continue
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[[ "${i#BOOT_IMAGE=*}" != "$i" ]] && continue
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BOOT_OPTIONS+=("$i")
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done
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fi
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eval "$(grub2-get-kernel-settings)" || true
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[[ -d "$BLS_DIR" ]] || mkdir -m 0700 -p "$BLS_DIR"
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BLS_ID="${MACHINE_ID}-${KERNEL_VERSION}"
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BLS_TARGET="${BLS_DIR}/${BLS_ID}.conf"
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mkbls "${KERNEL_VERSION}" \
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"$(date -u +%Y%m%d%H%M%S -d "$(stat -c '%y' "${KERNEL_DIR}")")" \
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"${BOOT_OPTIONS[*]}" >"${BLS_TARGET}"
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command -v restorecon &>/dev/null && restorecon -R "${BLS_TARGET}"
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LINUX="$(grep '^linux[ \t]' "${BLS_TARGET}" | sed -e 's,^linux[ \t]*,,')"
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INITRD="$(grep '^initrd[ \t]' "${BLS_TARGET}" | sed -e 's,^initrd[ \t]*,,')"
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if [[ "$(grub2-probe --device $(grub2-probe --target=device /) --target=fs)" == "btrfs" &&
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"${SUSE_BTRFS_SNAPSHOT_BOOTING}" == "true" ]]; then
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LINUX_RELPATH="$(grub2-mkrelpath -r /boot${LINUX})"
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else
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LINUX_RELPATH="$(grub2-mkrelpath /boot${LINUX})"
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fi
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BOOTPREFIX="$(dirname ${LINUX_RELPATH})"
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ROOTPREFIX="$(dirname "/boot${LINUX}")"
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if [[ $LINUX != $LINUX_RELPATH ]]; then
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sed -i -e "s,^linux.*,linux ${BOOTPREFIX}${LINUX},g" "${BLS_TARGET}"
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sed -i -e "s,^initrd.*,initrd ${BOOTPREFIX}${INITRD},g" "${BLS_TARGET}"
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fi
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if ( [[ "$KERNEL_VERSION" != *${GRUB_DEFAULT_KERNEL_TYPE}* ]] && \
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[ "x$GRUB_NON_STANDARD_KERNEL" == "xtrue" ] ) || \
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( echo "$KERNEL_VERSION" | grep -E -q "64k|auto|rt|uki" && \
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[ "x$GRUB_NON_STANDARD_KERNEL" != "xtrue" ] ) || \
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( [[ "$KERNEL_VERSION" == *debug* ]] && [ "x$GRUB_DEFAULT_TO_DEBUG" != "xtrue" ] ); then
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GRUB_UPDATE_DEFAULT_KERNEL=false
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fi
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if [ "x$GRUB_UPDATE_DEFAULT_KERNEL" = "xtrue" ]; then
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NEWDEFAULT="${BLS_ID}"
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fi
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if [ "x$GRUB_LINUX_MAKE_DEBUG" = "xtrue" ]; then
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BLS_DEBUG="$(echo ${BLS_TARGET} | sed -e "s/${KERNEL_VERSION}/${KERNEL_VERSION}~debug/")"
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cp --preserve=timestamps -T "${BLS_TARGET}" "${BLS_DEBUG}"
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TITLE="$(grep '^title[ \t]' "${BLS_DEBUG}" | sed -e 's/^title[ \t]*//')"
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OPTIONS="$(echo "${BOOT_OPTIONS[*]} ${GRUB_CMDLINE_LINUX_DEBUG}" | sed -e 's/\//\\\//g')"
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sed -i -e "s/^title.*/title ${TITLE}${GRUB_LINUX_DEBUG_TITLE_POSTFIX}/" "${BLS_DEBUG}"
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sed -i -e "s/^options.*/options ${OPTIONS}/" "${BLS_DEBUG}"
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if [ -n "$NEWDEFAULT" -a "x$GRUB_DEFAULT_TO_DEBUG" = "xtrue" ]; then
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NEWDEFAULT="${BLS_DEBUG_ID}"
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fi
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fi
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if [ -n "$NEWDEFAULT" ]; then
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grub2-editenv - set "saved_entry=${NEWDEFAULT}"
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fi
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# this probably isn't the best place to do this, but it will do for now.
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if [ -e "${ROOTPREFIX}${INITRD}" -a -e "${ROOTPREFIX}${LINUX}" -a \
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"${ROOTPREFIX}${INITRD}" -ot "${ROOTPREFIX}${LINUX}" -a \
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-x /usr/lib/kernel/install.d/50-dracut.install ]; then
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rm -f "${ROOTPREFIX}${INITRD}"
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fi
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exit 0
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fi
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/sbin/new-kernel-pkg --package "kernel${flavor}" --install "$KERNEL_VERSION" || exit $?
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/sbin/new-kernel-pkg --package "kernel${flavor}" --mkinitrd --dracut --depmod --update "$KERNEL_VERSION" || exit $?
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/sbin/new-kernel-pkg --package "kernel${flavor}" --rpmposttrans "$KERNEL_VERSION" || exit $?
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# If grubby is used there's no need to run other installation plugins
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exit 77
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;;
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remove)
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if [[ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]] || [[ ! -f /sbin/new-kernel-pkg ]]; then
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BLS_TARGET="${BLS_DIR}/${MACHINE_ID}-${KERNEL_VERSION}.conf"
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BLS_DEBUG="$(echo ${BLS_TARGET} | sed -e "s/${KERNEL_VERSION}/${KERNEL_VERSION}~debug/")"
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rm -f "${BLS_TARGET}" "${BLS_DEBUG}"
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for i in vmlinuz System.map config zImage.stub dtb; do
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rm -rf "/boot/${i}-${KERNEL_VERSION}"
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done
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# hmac is .vmlinuz-<version>.hmac so needs a special treatment
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rm -f "/boot/.vmlinuz-${KERNEL_VERSION}.hmac"
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# symvers is symvers-<version>.gz symlink, needs a special treatment
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rm -f "/boot/symvers-${KERNEL_VERSION}.gz"
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exit 0
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fi
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/sbin/new-kernel-pkg --package "kernel${flavor+-$flavor}" --rminitrd --rmmoddep --remove "$KERNEL_VERSION" || exit $?
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# If grubby is used there's no need to run other installation plugins
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exit 77
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;;
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*)
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;;
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esac
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