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lvm2/udev/69-dm-lvm-metad.rules
Peter Rajnoha 2c2bb4a458 Detect the lvm binary path in lvmetad udev rules.
We can't use 'DM_SBIN_PATH'. This one is set only for DM devices but not
for all block devices - the pvscan is run on all relevant block devices!

This LVM_SBIN_PATH (as well as DM_SBIN_PATH) detection should be removed
eventually but for upstream solution, we still have to do that as there are
known cases where the binaries are put either in /sbin or /usr/sbin
(some installation systems, initrd systems etc.).
2012-03-12 08:59:55 +00:00

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# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
#
# This file is part of LVM2.
# Udev rules for LVM.
#
# Scan all block devices having a PV label for LVM metadata.
# Store this information in LVMetaD (the LVM metadata daemon) and maintain LVM
# metadata state for improved performance by avoiding further scans while
# running subsequent LVM commands or while using lvm2app library.
# Also, notify LVMetaD about any relevant block device removal.
#
# This rule is essential for having the information in LVMetaD up-to-date.
# It also requires blkid to be called on block devices before so only devices
# used as LVM PVs are processed (ID_FS_TYPE="LVM2_member" or "LVM1_member").
SUBSYSTEM!="block", GOTO="lvm_end"
# Device-mapper devices are processed only on change event or on supported synthesized event.
KERNEL=="dm-[0-9]*", ENV{DM_UDEV_RULES_VSN}!="?*", GOTO="lvm_end"
# Set proper sbin path, /sbin has higher priority than /usr/sbin.
ENV{LVM_SBIN_PATH}="/sbin"
TEST!="$env{LVM_SBIN_PATH}/lvm", ENV{LVM_SBIN_PATH}="/usr/sbin"
TEST!="$env{LVM_SBIN_PATH}/lvm", GOTO="lvm_end"
# Only process devices already marked as a PV - this requires blkid to be called before.
ENV{ID_FS_TYPE}=="LVM2_member|LVM1_member", RUN+="$env{LVM_SBIN_PATH}/lvm pvscan --cache --major $major --minor $minor"
LABEL="lvm_end"