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PATH: usr / lib / udev / rules.d

# Copyright (C) 2009 Red Hat, Inc. All rights reserved.
#
# This file is part of LVM2.

# Udev rules for LVM.
#
# These rules create symlinks for LVM logical volumes in
# /dev/VG directory (VG is an actual VG name). Some udev
# environment variables are set (they can be used in later
# rules as well):
#   DM_LV_NAME - logical volume name
#   DM_VG_NAME - volume group name
#   DM_LV_LAYER - logical volume layer (blank if not set)

# "add" event is processed on coldplug only!
ACTION=="remove", GOTO="lvm_end"
ENV{DM_UDEV_RULES_VSN}!="?*", GOTO="lvm_end"
ENV{DM_UUID}!="LVM-?*", GOTO="lvm_end"

# Use DM name and split it up into its VG/LV/layer constituents.
IMPORT{program}="/usr/sbin/dmsetup splitname --nameprefixes --noheadings --rows $env{DM_NAME}"

# DM_SUBSYSTEM_UDEV_FLAG0 is the 'NOSCAN' flag for LVM subsystem.
# This flag is used to temporarily disable selected rules to prevent any
# processing or scanning done on the LVM volume before LVM has any chance
# to zero any stale metadata found within the LV data area. Such stale
# metadata could cause false claim of the LV device, keeping it open etc.
#
# If the NOSCAN flag is present, backup selected existing flags used to
# disable rules, then set them firmly so those selected rules are surely skipped.
# Restore these flags once the NOSCAN flag is dropped (which is normally any
# uevent that follows for this LV, even an artificially generated one).
ENV{DM_SUBSYSTEM_UDEV_FLAG0}=="1", ENV{DM_NOSCAN}="1", ENV{DM_DISABLE_OTHER_RULES_FLAG_OLD}="$env{DM_UDEV_DISABLE_OTHER_RULES_FLAG}", ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}="1"
ENV{DM_SUBSYSTEM_UDEV_FLAG0}!="1", IMPORT{db}="DM_NOSCAN", IMPORT{db}="DM_DISABLE_OTHER_RULES_FLAG_OLD"
ENV{DM_SUBSYSTEM_UDEV_FLAG0}!="1", ENV{DM_NOSCAN}=="1", ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}="$env{DM_DISABLE_OTHER_RULES_FLAG_OLD}", \
				   ENV{DM_DISABLE_OTHER_RULES_FLAG_OLD}="", ENV{DM_NOSCAN}=""

ENV{DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG}=="1", GOTO="lvm_end"

# Ignore private devices - the ones having any suffix in DM_UUID. Both in udev rules and in systemd.
## FIXME resolve -suffix handling
## ENV{DM_UUID}=="LVM-?*-?*", ENV{SYSTEMD_READY}="0", GOTO="lvm_disable"

# Do not create symlinks for inappropriate subdevices.
ENV{DM_LV_NAME}=="pvmove?*|?*_vorigin", GOTO="lvm_disable"
ENV{DM_LV_LAYER}=="?*", GOTO="lvm_disable"

# Create symlinks for top-level devices only.
ENV{DM_VG_NAME}=="?*", ENV{DM_LV_NAME}=="?*", SYMLINK+="$env{DM_VG_NAME}/$env{DM_LV_NAME}", GOTO="lvm_end"

LABEL="lvm_disable"
ENV{DM_UDEV_DISABLE_DISK_RULES_FLAG}="1"
ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}="1"
OPTIONS:="nowatch"

LABEL="lvm_end"

[-] 65-scsi-cciss_id.rules [edit]
[-] 60-evdev.rules [edit]
[-] 91-drm-modeset.rules [edit]
[-] 90-vconsole.rules [edit]
[-] 60-cdrom_id.rules [edit]
[-] 65-persistent-net-nbft.rules [edit]
[-] 90-iprutils.rules [edit]
[-] 70-uaccess.rules [edit]
[-] 99-nfs.rules [edit]
[-] 11-dm-mpath.rules [edit]
[-] README [edit]
[-] 71-nvmf-netapp.rules [edit]
[-] 68-del-part-nodes.rules [edit]
[-] 60-persistent-storage-tape.rules [edit]
[-] 60-persistent-v4l.rules [edit]
[-] 01-md-raid-creating.rules [edit]
[-] 60-serial.rules [edit]
[-] 80-drivers.rules [edit]
[-] 60-sensor.rules [edit]
[-] 70-nvmf-keys.rules [edit]
[-] 62-multipath.rules [edit]
[-] 75-probe_mtd.rules [edit]
[-] 75-net-description.rules [edit]
[-] 80-net-setup-link.rules [edit]
[-] 60-net.rules [edit]
[-] 71-seat.rules [edit]
[-] 84-nm-drivers.rules [edit]
[-] 11-dm-parts.rules [edit]
[-] 66-kpartx.rules [edit]
[-] 70-joystick.rules [edit]
[-] 40-redhat.rules [edit]
[-] 11-dm-lvm.rules [edit]
[-] 70-touchpad.rules [edit]
[-] 40-elevator.rules [edit]
[-] 60-drm.rules [edit]
[-] 70-libfprint-2.rules [edit]
[-] 63-fc-wwpn-id.rules [edit]
[-] 98-kexec.rules [edit]
[-] 85-nm-unmanaged.rules [edit]
[-] 60-input-id.rules [edit]
[-] 40-usb-blacklist.rules [edit]
[-] 61-scsi-sg3_id.rules [edit]
[-] 90-nm-thunderbolt.rules [edit]
[-] 70-power-switch.rules [edit]
[-] 60-block.rules [edit]
[-] 60-persistent-alsa.rules [edit]
[-] 69-md-clustered-confirm-device.rules [edit]
[-] 63-scsi-sg3_symlink.rules [edit]
[-] 69-dm-lvm.rules [edit]
[-] 60-persistent-storage.rules [edit]
[-] 95-dm-notify.rules [edit]
[+] ..
[-] 60-persistent-input.rules [edit]
[-] 64-md-raid-assembly.rules [edit]
[-] 70-camera.rules [edit]
[-] 70-mouse.rules [edit]
[-] 60-fido-id.rules [edit]
[-] 71-prefixdevname.rules [edit]
[-] 63-md-raid-arrays.rules [edit]
[-] 90-pipewire-alsa.rules [edit]
[-] 95-upower-wup.rules [edit]
[-] 50-udev-default.rules [edit]
[-] 13-dm-disk.rules [edit]
[-] 60-tpm-udev.rules [edit]
[-] 99-systemd.rules [edit]
[-] 73-seat-late.rules [edit]
[-] 64-btrfs.rules [edit]
[-] 70-memory.rules [edit]
[-] 81-net-dhcp.rules [edit]
[-] 60-autosuspend.rules [edit]
[-] 95-upower-hid.rules [edit]
[-] 70-nvmf-autoconnect.rules [edit]
[-] 78-sound-card.rules [edit]
[-] 66-md-auto-readd.rules [edit]
[-] 10-dm.rules [edit]