contrib/lvm2/dist/udev/11-dm-lvm.rules

   1 # Copyright (C) 2009 Red Hat, Inc. All rights reserved.
   2 #
   3 # This file is part of LVM2.
   4
   5 # Udev rules for LVM.
   6 #
   7 # These rules create symlinks for LVM logical volumes in
   8 # /dev/VG directory (VG is an actual VG name). Some udev
   9 # environment variables are set (they can be used in later
  10 # rules as well):
  11 #   DM_LV_NAME - logical volume name
  12 #   DM_VG_NAME - volume group name
  13 #   DM_LV_LAYER - logical volume layer (blank if not set)
  14
  15 # "add" event is processed on coldplug only!
  16 ACTION!="add|change", GOTO="lvm_end"
  17 ENV{DM_UDEV_RULES_VSN}!="?*", GOTO="lvm_end"
  18 ENV{DM_UUID}!="LVM-?*", GOTO="lvm_end"
  19 ENV{DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG}=="1", GOTO="lvm_end"
  20
  21 # Use DM name and split it up into its VG/LV/layer constituents.
  22 IMPORT{program}="$env{DM_SBIN_PATH}/dmsetup splitname --nameprefixes --noheadings --rows $env{DM_NAME}"
  23
  24 # Do not create symlinks for inappropriate subdevices.
  25 ENV{DM_LV_NAME}=="?*_mimage_[0-9]*|pvmove?*|?*_vorigin", GOTO="lvm_disable"
  26 ENV{DM_LV_LAYER}=="?*", GOTO="lvm_disable"
  27
  28 # Create symlinks for top-level devices only.
  29 ENV{DM_VG_NAME}=="?*", ENV{DM_LV_NAME}=="?*", SYMLINK+="$env{DM_VG_NAME}/$env{DM_LV_NAME}", GOTO="lvm_end"
  30
  31 LABEL="lvm_disable"
  32 ENV{DM_UDEV_DISABLE_DISK_RULES_FLAG}="1"
  33 ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}="1"
  34
  35 LABEL="lvm_end"