bin/pve-efiboot-tool

   1 #!/bin/sh
   2
   3 set -e
   4
   5 . /usr/share/pve-kernel-helper/scripts/functions
   6
   7 _add_entry_to_list_file() {
   8         file="$1"
   9         entry="$2"
  10
  11         if [ -e "$file" ]; then
  12                 cp "$file" "$file.new"
  13         fi
  14         echo "$entry" >> "$file.new"
  15         sort -uo "$file.new" "$file.new"
  16         mv "$file.new" "$file"
  17 }
  18
  19 _remove_entry_from_list_file() {
  20         file="$1"
  21         entry="$2"
  22
  23         # guard against removing whole file by accident!
  24         if [ -z "$entry" ]; then
  25                 echo "cannot remove empty entry from '$file'."
  26                 return
  27         fi
  28
  29         if [ -e "$file" ]; then
  30                 grep -vFx "$entry" "$file" > "$file.new" || true
  31                 mv "$file.new" "$file"
  32         else
  33                 echo "'$file' does not exist.."
  34         fi
  35 }
  36
  37 _get_partition_info() {
  38         if [ ! -e "$1" ]; then
  39                 warn "E: '$1' does not exist!"
  40                 exit 1
  41         fi
  42         bdev=$(realpath "$1")
  43         if [ ! -b "$bdev" ]; then
  44                 warn "E: '$bdev' is not a block device!"
  45                 exit 1
  46         fi
  47
  48         bdev_info=$( \
  49                   lsblk \
  50                   --bytes \
  51                   --pairs \
  52                   -o 'UUID,SIZE,FSTYPE,PARTTYPE,PKNAME,MOUNTPOINT' \
  53                   "$bdev" \
  54                   )
  55         if [ -z "$bdev_info" ]; then
  56                 warn "E: unable to get information about block device '$1'!"
  57                 exit 1
  58         fi
  59
  60         count=$(echo "$bdev_info" | grep -c '^')
  61         if [ "$count" -ne '1' ]; then
  62                 echo "$bdev_info"
  63                 warn "E: block device '$1' has children!"
  64                 exit 1
  65         fi
  66
  67         echo "$bdev_info"
  68         eval "$bdev_info"
  69
  70         if [ -z "$PKNAME" ]; then
  71                 warn "E: cannot determine parent device of '$1' - please provide a partition, not a full disk."
  72                 exit 1
  73         fi
  74
  75         if [ -n "$SIZE" ] && [ "$SIZE" -lt 268435456 ]; then
  76                 warn "E: '$1' is too small (<256M)."
  77                 exit 1
  78         fi
  79
  80         if [ -n "$MOUNTPOINT" ]; then
  81                 warn "E: '$1' is mounted on '$MOUNTPOINT' - exiting."
  82                 exit 1
  83         fi
  84 }
  85
  86 format() {
  87         part="$1"
  88         force="$2"
  89
  90         _get_partition_info "$part"
  91
  92         if [ -n "$FSTYPE" ]; then
  93                 if [ -z "$force" ] || [ "$force" != '--force' ]; then
  94                         warn "E: '$part' contains a filesystem ('$FSTYPE') - exiting (use --force to override)"
  95                         exit 1
  96                 fi
  97         fi
  98
  99         part_basename=$(basename "$part")
 100         if [ -z "$part_basename" ]; then
 101                 warn "E: unable to determine basename of '$part'"
 102                 exit 1
 103         fi
 104
 105         part_num=$(cat /sys/block/"$PKNAME"/"$part_basename"/partition)
 106         if [ -z "$part_num" ]; then
 107                 warn "E: unable to determine partition number of '$part'"
 108                 exit 1
 109         fi
 110
 111         if [ -z "$PARTTYPE" ] || [ "$PARTTYPE" != "$ESPTYPE" ]; then
 112                 echo "Setting partition type of '$part' to '$ESPTYPE'.."
 113                 sgdisk "-t$part_num:$ESPTYPE" "/dev/$PKNAME"
 114                 echo "Calling 'udevadm settle'.."
 115                 udevadm settle --timeout=5
 116         fi
 117
 118         echo "Formatting '$part' as vfat.."
 119         mkfs.vfat -F 32 "$part"
 120         echo "Done."
 121         exit 0
 122 }
 123
 124 init() {
 125         part="$1"
 126
 127         _get_partition_info "$part"
 128
 129         if [ -z "$PARTTYPE" ] || [ "$PARTTYPE" != "$ESPTYPE" ]; then
 130                 warn "E: '$part' has wrong partition type (!= $ESPTYPE)."
 131                 exit 1
 132         fi
 133
 134         if [ -z "$FSTYPE" ] || [ "$FSTYPE" != 'vfat' ]; then
 135                 warn "E: '$part' has wrong filesystem (!= vfat)."
 136                 exit 1
 137         fi
 138
 139         if [ -z "$UUID" ]; then
 140                 warn "E: '$part' has no UUID set, required for mounting."
 141                 exit 1
 142         fi
 143
 144         esp_mp="/var/tmp/espmounts/$UUID"
 145
 146         mkdir -p "$esp_mp"
 147         echo "Mounting '$part' on '$esp_mp'."
 148         mount -t vfat "$part" "$esp_mp"
 149
 150         echo "Installing systemd-boot.."
 151         mkdir -p "$esp_mp/$PMX_ESP_DIR"
 152         bootctl --path "$esp_mp" install
 153
 154         echo "Configuring systemd-boot.."
 155         echo "timeout 3" > "$esp_mp/$PMX_LOADER_CONF.tmp"
 156         echo "default proxmox-*" >> "$esp_mp/$PMX_LOADER_CONF.tmp"
 157         mv "$esp_mp/$PMX_LOADER_CONF.tmp" "$esp_mp/$PMX_LOADER_CONF"
 158         echo "Unmounting '$part'."
 159         umount "$part"
 160
 161         echo "Adding '$part' to list of synced ESPs.."
 162         _add_entry_to_list_file "$ESP_LIST" "$UUID"
 163
 164         echo "Refreshing kernels and initrds.."
 165         refresh
 166 }
 167
 168 _clean_impl() {
 169         if [ ! -e "/dev/disk/by-uuid/" ]; then
 170                 warn 'E: /dev/disk/by-uuid does not exist, aborting!'
 171                 exit 1
 172         fi
 173         echo -n "Checking whether ESP '$curr_uuid' exists.. "
 174         if [ -e "/dev/disk/by-uuid/$curr_uuid" ]; then
 175                 echo "Found!"
 176         else
 177                 echo "Not found!"
 178                 if [ -z "$dry_run" ] || [ "$dry_run" != '--dry-run' ]; then
 179                         _remove_entry_from_list_file "$ESP_LIST" "$curr_uuid"
 180                 fi
 181         fi
 182 }
 183
 184 clean() {
 185         dry_run="$1"
 186         rm -f "$ESP_LIST".tmp
 187         loop_esp_list _clean_impl
 188         if [ "$?" -eq 2 ]; then
 189                 warn "E: $ESP_LIST does not exist."
 190                 exit 1
 191         fi
 192         if [ -e "$ESP_LIST".tmp ]; then
 193                 mv "$ESP_LIST".tmp "$ESP_LIST"
 194         fi
 195 }
 196
 197 refresh() {
 198         hookscript='/etc/kernel/postinst.d/zz-pve-efiboot'
 199         echo "Running hook script '$hookscript'.."
 200         exec $hookscript
 201 }
 202
 203 add_kernel() {
 204         ver="$1"
 205
 206         if [ -z "$ver" ]; then
 207                 warn "E: <kernel-version> is mandatory"
 208                 warn ""
 209                 exit 1
 210         fi
 211
 212         if [ ! -e "/boot/vmlinuz-$ver" ]; then
 213                 warn "E: no kernel image found in /boot for '$ver', not adding."
 214                 exit 1
 215         fi
 216         _add_entry_to_list_file "$MANUAL_KERNEL_LIST" "$ver"
 217         echo "Added kernel '$ver' to manual kernel list."
 218 }
 219
 220 remove_kernel() {
 221         ver="$1"
 222
 223         if [ -z "$ver" ]; then
 224                 warn "E: <kernel-version> is mandatory"
 225                 warn ""
 226                 exit 1
 227         fi
 228
 229         if grep -sqFx "$ver" "$MANUAL_KERNEL_LIST"; then
 230                 _remove_entry_from_list_file "$MANUAL_KERNEL_LIST" "$ver"
 231                 echo "Removed kernel '$ver' from manual kernel list."
 232         else
 233                 echo "Kernel '$ver' not found in manual kernel list."
 234         fi
 235 }
 236
 237 list_kernels() {
 238         boot_kernels="$(boot_kernel_list)"
 239
 240         if [ -e "$MANUAL_KERNEL_LIST" ]; then
 241                 manual_kernels="$(echo "$boot_kernels" | grep -Fx -f "$MANUAL_KERNEL_LIST")"
 242                 boot_kernels="$(echo "$boot_kernels" | grep -Fxv -f "$MANUAL_KERNEL_LIST")"
 243         fi
 244
 245         if [ -z "$manual_kernels" ]; then
 246                 manual_kernels="None."
 247         fi
 248
 249         echo "Manually selected kernels:"
 250         echo "$manual_kernels"
 251         echo ""
 252         echo "Automatically selected kernels:"
 253         echo "$boot_kernels"
 254 }
 255
 256 usage() {
 257         warn "USAGE: $0 <commands> [ARGS]"
 258         warn ""
 259         warn "       $0 format <partition> [--force]"
 260         warn "       $0 init <partition>"
 261         warn "       $0 clean [--dry-run]"
 262         warn "       $0 refresh"
 263         warn "       $0 kernels <add|remove> <kernel-version>"
 264         warn "       $0 kernels list"
 265         warn "       $0 help"
 266 }
 267
 268 help() {
 269         echo "USAGE: $0 format <partition> [--force]"
 270         echo ""
 271         echo "    format <partition> as EFI system partition. Use --force to format even if <partition> is currently in use."
 272         echo ""
 273         echo "USAGE: $0 init <partition>"
 274         echo ""
 275         echo "    initialize EFI system partition at <partition> for automatic synchronization of pve-kernels and their associated initrds."
 276         echo ""
 277         echo "USAGE: $0 clean [--dry-run]"
 278         echo ""
 279         echo "    remove no longer existing EFI system partition UUIDs from $ESP_LIST. Use --dry-run to only print outdated entries instead of removing them."
 280         echo ""
 281         echo "USAGE: $0 refresh"
 282         echo ""
 283         echo "    refresh all configured EFI system partitions."
 284         echo ""
 285         echo "USAGE: $0 kernels <add|remove> <kernel-version>"
 286         echo ""
 287         echo "    add/remove pve-kernel with ABI <kernel-version> to list of synced kernels, in addition to automatically selected ones."
 288         echo ""
 289         echo "USAGE: $0 kernels list"
 290         echo ""
 291         echo "    list kernel versions currently selected for inclusion on ESPs."
 292         echo ""
 293 }
 294
 295 if [ -z "$1" ]; then
 296     usage
 297     exit 0
 298 fi
 299
 300 case "$1" in
 301         'format')
 302                 shift
 303                 if [ -z "$1"  ]; then
 304                         warn "E: <partition> is mandatory."
 305                         warn ""
 306                         usage
 307                         exit 1
 308                 fi
 309                 format "$@"
 310                 exit 0
 311         ;;
 312         'init')
 313                 reexec_in_mountns "$@"
 314                 shift
 315                 if [ -z "$1"  ]; then
 316                         warn "E: <partition> is mandatory."
 317                         warn ""
 318                         usage
 319                         exit 1
 320                 fi
 321                 init "$@"
 322                 exit 0
 323         ;;
 324         'clean')
 325                 shift
 326                 clean "$@"
 327                 exit 0
 328         ;;
 329         'refresh')
 330                 shift
 331                 refresh
 332                 exit 0
 333         ;;
 334         'kernels')
 335                 shift
 336                 if [ -z "$1" ]; then
 337                         warn "E: subcommand is mandatory."
 338                         warn ""
 339                         usage
 340                         exit 1
 341                 fi
 342                 cmd="$1"
 343                 case "$cmd" in
 344                         'add')
 345                                 add_kernel "$2"
 346                                 exit 0
 347                         ;;
 348                         'remove')
 349                                 remove_kernel "$2"
 350                                 exit 0
 351                         ;;
 352                         'list')
 353                                 list_kernels
 354                                 exit 0
 355                         ;;
 356                         *)
 357                                 warn "E: invalid subcommand '$cmd'."
 358                                 warn ""
 359                                 usage
 360                                 exit 1
 361                         ;;
 362                 esac
 363         ;;
 364         'help')
 365                 shift
 366                 help
 367                 exit 0
 368         ;;
 369         *)
 370                 warn "Invalid/unknown command '$1'."
 371                 warn ""
 372                 usage
 373                 exit 1
 374         ;;
 375 esac
 376
 377 exit 1