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//usr/share/doc/device-mapper-1.02.164/12-dm-permissions.rules
# Copyright (C) 2009 Red Hat, Inc. All rights reserved. # # This file is part of LVM2. # Udev rules for device-mapper devices. # # These rules set permissions for DM devices. # # This file is considered to be a template where users can put their # own entries and then put a copy of it manually to a usual place with # user-edited udev rules (usually /etc/udev/rules.d). # # There are some environment variables set that can be used: # DM_UDEV_RULES_VSN - DM udev rules version # DM_NAME - actual DM device's name # DM_UUID - UUID set for DM device (blank if not specified) # DM_SUSPENDED - suspended state of DM device (0 or 1) # DM_LV_NAME - logical volume name (not set if LVM device not present) # DM_VG_NAME - volume group name (not set if LVM device not present) # DM_LV_LAYER - logical volume layer (not set if LVM device not present) # "add" event is processed on coldplug only! ACTION!="add|change", GOTO="dm_end" ENV{DM_UDEV_RULES_VSN}!="?*", GOTO="dm_end" # A few demonstrational examples... # PLAIN DM DEVICES # # Set permissions for a DM device named 'my_device' exactly # ENV{DM_NAME}=="my_device", OWNER:="root", GROUP:="root", MODE:="660" # Set permissions for all DM devices having 'MY_UUID-' UUID prefix # ENV{DM_UUID}=="MY_UUID-?*", OWNER:="root", GROUP:="root", MODE:="660" # LVM DEVICES # # Set permissions for all LVM devices # ENV{DM_UUID}=="LVM-?*", OWNER:="root", GROUP:="root", MODE:="660" # Set permissions for all devices that belong to one LVM VG # ENV{DM_VG_NAME}=="VolGroup00", OWNER:="root", GROUP:="root", MODE:="660" # Set permissions for an LVM device with VG named VolGroup00 and LV named LogVol00 exactly # ENV{DM_VG_NAME}=="VolGroup00", ENV{DM_LV_NAME}=="LogVol00", OWNER:="root", GROUP:="root", MODE:="660" # Set permissions for all LVM devices that does not belong to a VG named VolGroup00 # ENV{DM_VG_NAME}!="VolGroup00", OWNER:="root", GROUP:="root", MODE:="660" # ENCRYPTED DEVICES (using cryptsetup >= 1.1) # # Set permissions for all encrypted devices created by cryptsetup (plain devices) # ENV{DM_UUID}=="CRYPT-PLAIN-?*", OWNER:="root", GROUP:="root", MODE:="660" # Set permissions for all encrypted devices created by cryptsetup (LUKS extension) # ENV{DM_UUID}=="CRYPT-LUKS1-?*", OWNER:="root", GROUP:="root", MODE:="660" # Set permissions for an encrypted device created by cryptsetup and having an exact luks UUID # ENV{DM_UUID}=="CRYPT-LUKS1-22fce5c8313c43c68d84b50a3b0fee78-?*", OWNER:="root", GROUP:="root", MODE:="660" # MULTIPATH DEVICES # # Set permissions for all multipath devices # ENV{DM_UUID}=="mpath-?*", OWNER:="root", GROUP:="root", MODE:="660" # Set permissions for first two partitions created on a multipath device (and detected by kpartx) # ENV{DM_UUID}=="part[1-2]-mpath-?*", OWNER:="root", GROUP:="root", MODE:="660" # ...you can use any combination of the comparisons with the environment variables # listed at the beginning of this file (udev provides simple pattern matching by # using *, ? and [] that you can use, see 'man udev' for more information). # Set default permissions for all DM devices if not set before. # OWNER:="root", GROUP:="root", MODE:="660" LABEL="dm_end"