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@@ -107,20 +107,85 @@ esac
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if [ -n "${GRUB_BTRFS_PROTECTION_AUTHORIZED_USERS}" ] ; then
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protection_authorized_users="--users ${GRUB_BTRFS_PROTECTION_AUTHORIZED_USERS} "
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fi
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## Probe information of Root and Boot devices
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# Probe info "Root partition"
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root_device=$(${grub_probe} --target=device /) # Root device
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root_uuid=$(${grub_probe} --device ${root_device} --target="fs_uuid" 2>/dev/null) # UUID of the root device
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root_uuid_subvolume=$(btrfs subvolume show / 2>/dev/null) || print_error "UUID of the root subvolume is not available"; # If UUID of root subvolume is not available, then exit
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root_uuid_subvolume=$(awk -F":" 'match($1, /(^[ \t]+UUID)/) {sub(/^[ \t]+/, "", $2); print $2}' <<< "$root_uuid_subvolume") # UUID of the root subvolume '
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# Probe info "Boot partition"
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boot_device=$(${grub_probe} --target=device ${boot_directory}) # Boot device
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boot_uuid=$(${grub_probe} --device ${boot_device} --target="fs_uuid" 2>/dev/null) # UUID of the boot device
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boot_uuid_subvolume=$(btrfs subvolume show "$boot_directory" 2>/dev/null) || boot_uuid_subvolume=" UUID: $root_uuid_subvolume"; # If boot folder isn't a subvolume, then UUID=root_uuid_subvolume
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boot_uuid_subvolume=$(awk -F":" 'match($1, /(^[ \t]+UUID)/) {sub(/^[ \t]+/, "", $2); print $2}' <<< "$boot_uuid_subvolume") # UUID of the boot subvolume '
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boot_hs=$(${grub_probe} --device ${boot_device} --target="hints_string" 2>/dev/null) # hints string
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boot_fs=$(${grub_probe} --device ${boot_device} --target="fs" 2>/dev/null) # Type filesystem of boot device
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# -----------------------------------------------------------
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# ---------- Root partition ----------
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root_device="$(${grub_probe} --target=device /)" # e.g. /dev/mapper/enc
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root_uuid="$(${grub_probe} --device "${root_device}" --target=fs_uuid 2>/dev/null)" || true
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# Fallback when grub-probe fails (encrypted container, detached header…)
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if [ -z "$root_uuid" ]; then
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root_uuid="$(blkid -s UUID -o value "${root_device}" 2>/dev/null)"
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fi
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[ -z "$root_uuid" ] && print_error "Cannot determine UUID of ${root_device}"
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# Root subvolume UUID
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root_uuid_subvolume="$(btrfs subvolume show / 2>/dev/null | \
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awk -F':' '/^\s*UUID/ {gsub(/^[ \t]+/, "", $2); print $2}')"
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[ -z "$root_uuid_subvolume" ] && print_error "UUID of the root subvolume is not available"
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# ---------- Boot partition ----------
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boot_device="$(${grub_probe} --target=device "${boot_directory}")" # e.g. /dev/sdb1
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boot_uuid="$(${grub_probe} --device "${boot_device}" --target=fs_uuid 2>/dev/null)" || true
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# Fallback for boot UUID
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if [ -z "$boot_uuid" ]; then
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boot_uuid="$(blkid -s UUID -o value "${boot_device}" 2>/dev/null)"
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fi
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[ -z "$boot_uuid" ] && print_error "Cannot determine UUID of ${boot_device}"
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# If /boot is not a Btrfs subvolume, reuse root subvol UUID
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boot_uuid_subvolume="$(
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btrfs subvolume show "${boot_directory}" 2>/dev/null | \
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awk -F':' '/^\s*UUID/ {gsub(/^[ \t]+/, "", $2); print $2; exit}'
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)"
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[ -z "$boot_uuid_subvolume" ] && boot_uuid_subvolume="$root_uuid_subvolume"
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# Extra data for GRUB commands
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boot_hs="$(${grub_probe} --device "${boot_device}" --target=hints_string 2>/dev/null)"
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boot_fs="$(${grub_probe} --device "${boot_device}" --target=fs 2>/dev/null)"
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# -----------------------------------------------------------
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## Enable LUKS encrypted devices support
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case "$(echo "$GRUB_BTRFS_ENABLE_CRYPTODISK" | tr '[:upper:]' '[:lower:]')" in
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true)
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list_insmods=(
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"insmod gzio"
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"insmod part_gpt"
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"insmod cryptodisk"
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"insmod luks"
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"insmod gcry_rijndael"
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"insmod gcry_rijndael"
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"insmod gcry_sha256"
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"insmod ${boot_fs}"
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)
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# Extract the <source> field of cryptdevice=<source>:<name>[:header]
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crypt_source="$(printf '%s %s\n' "$GRUB_CMDLINE_LINUX_DEFAULT" "$GRUB_CMDLINE_LINUX" \
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| grep -o -P 'cryptdevice=\K[^:]+' || true)"
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# Turn the source into a UUID that cryptomount -u understands
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crypt_uuid=""
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if [[ "$crypt_source" =~ ^UUID=.* ]]; then # already UUID=…
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crypt_uuid="${crypt_source#UUID=}"
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elif [[ "$crypt_source" == /dev/* ]]; then # path → resolve → blkid
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real_dev=$(readlink -f "$crypt_source" 2>/dev/null || true)
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[ -b "$real_dev" ] && crypt_uuid=$(blkid -s UUID -o value "$real_dev" 2>/dev/null || true)
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fi
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# Emit the proper cryptomount command
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if [[ "$crypt_uuid" =~ ^[0-9a-fA-F-]{36}$ ]]; then
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list_insmods+=("cryptomount -u ${crypt_uuid}")
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else
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# last-resort: scan all crypto containers (works but a bit slower)
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list_insmods+=("cryptomount -a")
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fi
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;;
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*)
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list_insmods=("insmod ${boot_fs}")
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;;
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esac
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## Parameters passed to the kernel
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kernel_parameters="$GRUB_CMDLINE_LINUX $GRUB_CMDLINE_LINUX_DEFAULT $GRUB_BTRFS_SNAPSHOT_KERNEL_PARAMETERS"
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@@ -218,13 +283,22 @@ make_menu_entries()
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if [ x\$feature_all_video_module = xy ]; then
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insmod all_video
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fi
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set gfxpayload=keep
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insmod ${boot_fs}
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set gfxpayload=keep"
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for j in "${insmods[@]}"; do
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entry "\
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${j}"
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done
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entry "\
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if [ x\$feature_platform_search_hint = xy ]; then
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search --no-floppy --fs-uuid --set=root ${boot_hs} ${boot_uuid}
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else
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search --no-floppy --fs-uuid --set=root ${boot_uuid}
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fi"
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if [ "${SUSE_BTRFS_SNAPSHOT_BOOTING:-"false"}" = "true" ]; then
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entry "\
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set btrfs_subvolid=5"
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fi
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entry "\
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echo 'Loading Snapshot: "${snap_date_trim}" "${snap_dir_name_trim}"'
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echo 'Loading Kernel: "${k}" ...'
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linux \"${boot_dir_root_grub}/"${k}"\" root="${LINUX_ROOT_DEVICE}" ${kernel_parameters} ${rootflags}subvol=\""${snap_dir_name_trim}"\""
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@@ -259,7 +333,12 @@ make_menu_entries()
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search --no-floppy --fs-uuid --set=root ${boot_hs} ${boot_uuid}
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else
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search --no-floppy --fs-uuid --set=root ${boot_uuid}
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fi"
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if [ "${SUSE_BTRFS_SNAPSHOT_BOOTING:-"false"}" = "true" ]; then
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entry "\
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set btrfs_subvolid=5"
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fi
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entry "\
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echo 'Loading Snapshot: "${snap_date_trim}" "${snap_dir_name_trim}"'
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echo 'Loading Kernel: "${k}" ...'
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linux \"${boot_dir_root_grub}/"${k}"\" root="${LINUX_ROOT_DEVICE}" ${kernel_parameters} ${rootflags}subvol=\""${snap_dir_name_trim}"\""
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@@ -318,7 +397,7 @@ snapshot_list()
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# Parse Snapper & timeshift & yabsnap information
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local type_snapshot="N/A"
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local description_snapshot="N/A"
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# path to yabsnap snapshot meta data
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local yabsnap_info="$grub_btrfs_mount_point/${path_snapshot%"/"*}/$(echo "${snap[13]}" | awk -F'/' '{print $3 "-meta.json"}')"
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@@ -455,12 +534,8 @@ detect_microcode()
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list_ucode=()
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# Original intel/amd microcode (auto-detect)
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# See "https://www.gnu.org/software/grub/manual/grub/html_node/Simple-configuration.html"
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for oiucode in "${boot_dir}"/intel-uc.img \
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"${boot_dir}"/intel-ucode.img \
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"${boot_dir}"/amd-uc.img \
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"${boot_dir}"/amd-ucode.img \
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"${boot_dir}"/early_ucode.cpio \
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"${boot_dir}"/microcode.cpio; do
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for oiucode in ${GRUB_EARLY_INITRD_LINUX_STOCK} ; do
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oiucode="${boot_dir}/${oiucode}"
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[ ! -f "${oiucode}" ] && continue;
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list_ucode+=("$oiucode")
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done
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@@ -531,6 +606,7 @@ boot_bounded()
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detect_rootflags
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title_format
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boot_dir_root_grub="$(make_system_path_relative_to_its_root "${boot_dir}")" # convert "boot_directory" to root of GRUB (e.g /boot become /)
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insmods=("${list_insmods[@]##*"/"}")
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make_menu_entries
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# show snapshot found during run "grub-mkconfig"
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if [ "${GRUB_BTRFS_SHOW_SNAPSHOTS_FOUND:-"true"}" = "true" ]; then
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