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109 lines
3.2 KiB
109 lines
3.2 KiB
3 weeks ago
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#!/usr/bin/bash
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#
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# Manage memtest86+ install location and bootloader config.
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# Currently only manages GRUB with BLS support enabled.
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#
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# Sanity Checks
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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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if ! [[ $KERNEL_INSTALL_BOOT_ROOT ]]; then
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exit 0
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fi
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# Setup variables
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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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MEMTEST_VERSION="$2"
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BOOT_DIR_ABS="$3"
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MEMTEST_IMAGE="$4"
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MEMTEST_DIR="${MEMTEST_IMAGE%/*}"
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BOOT_ROOT="${KERNEL_INSTALL_BOOT_ROOT}"
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MACHINE_ID="${KERNEL_INSTALL_MACHINE_ID}"
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BLS_DIR="${BOOT_ROOT}/loader/entries"
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# Fail back to /boot default if BLS_DIR
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# doesn't exist already, matching 20-grub.install
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if [[ ! -d "${BLS_DIR}" ]]; then
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BOOT_ROOT="/boot"
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BLS_DIR="/boot/loader/entries"
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fi
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BLS_ENTRY="${BLS_DIR}/${MACHINE_ID}-0-memtest86+.conf"
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# Setup functions
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mkbls_grub() {
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local memtestver=$1 && shift
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local memtestimg=$1 && shift
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cat <<EOF
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title Memory test (${memtestimg})
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version 0-${memtestver}-memtest86+
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linux /${memtestimg}
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grub_users \$grub_users
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grub_arg --unrestricted
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grub_class memtest
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EOF
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}
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# If ${BOOT_DIR_ABS} exists, non-grub boot loader is active.
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[[ -d "${BOOT_DIR_ABS}" ]] && exit 0
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case "$COMMAND" in
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add)
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# Install into BOOT_ROOT, if not already there
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if [[ "${MEMTEST_DIR}" != "${BOOT_ROOT}" ]]; then
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for i in \
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"$MEMTEST_IMAGE"
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do
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[[ -e "$i" ]] || continue
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rm -f "${BOOT_ROOT}/${i##*/}"
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cp -aT "$i" "${BOOT_ROOT}/${i##*/}"
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command -v restorecon &>/dev/null && \
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restorecon -R "${BOOT_ROOT}/${i##*/}"
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done
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fi
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# Generate GRUB BLS, if enabled
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if [[ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]]; then
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[[ -d "$BLS_DIR" ]] || mkdir -m 0700 -p "$BLS_DIR"
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mkbls_grub "${MEMTEST_VERSION}" "${MEMTEST_IMAGE##*/}" > "${BLS_ENTRY}"
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command -v restorecon &>/dev/null && restorecon -R "${BLS_ENTRY}"
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MEMTEST_LOC="$(grep '^linux[ \t]' "${BLS_ENTRY}" | sed -e 's,^linux[ \t]*,,')"
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if [[ "$(grub2-probe --device $(grub2-probe --target=device /) --target=fs)" == "btrfs" &&
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"${SUSE_BTRFS_SNAPSHOT_BOOTING}" == "true" ]]; then
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MEMTEST_RELPATH="$(grub2-mkrelpath -r ${BOOT_ROOT}${MEMTEST_LOC})"
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else
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MEMTEST_RELPATH="$(grub2-mkrelpath ${BOOT_ROOT}${MEMTEST_LOC})"
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fi
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BOOTPREFIX="$(dirname ${MEMTEST_RELPATH})"
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if [[ "${MEMTEST_LOC}" != "${MEMTEST_RELPATH}" ]]; then
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sed -i -e "s,^linux.*,linux ${BOOTPREFIX}${MEMTEST_LOC},g" "${BLS_ENTRY}"
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fi
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exit 77
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fi
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;;
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remove)
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# Find MEMTEST_IMAGE location in BLS_ENTRY, delete both MEMTEST_IMAGE and BLS_ENTRY
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if [[ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]]; then
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if [[ -f "${BLS_ENTRY}" ]]; then
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MEMTEST_IMAGE="$(grep '^linux[ \t]' "${BLS_ENTRY}" | sed -e 's,^linux[ \t]*,,')"
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if [[ -f "${BOOT_ROOT}${MEMTEST_IMAGE}" ]]; then
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rm -f "${BOOT_ROOT}${MEMTEST_IMAGE}"
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fi
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rm -f "${BLS_ENTRY}"
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fi
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exit 77
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fi
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;;
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*)
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;;
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esac
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