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c48149cf80
The blkid we call in 13-dm-disk.rules also returns identifiers for
partitions based on which the /dev/disk/by-part{uuid,label} and
gpt-auto-root symlinks should be created in the same manner as we
already create symlinks for filesystem labels and uuids.
This is because we handle blkid calls and symlink creation under
/dev/disk ourselves in our 13-dm-disk.rules for device-mapper devices
for us to have more control over this process.
See also https://lists.freedesktop.org/archives/systemd-devel/2017-July/039220.html
and original report http://tracker.ceph.com/issues/19489 for
the exact case where these symlinks were missing.
43 lines
1.7 KiB
Plaintext
43 lines
1.7 KiB
Plaintext
# Copyright (C) 2009 Red Hat, Inc. All rights reserved.
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#
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# This file is part of LVM2.
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# Udev rules for device-mapper devices.
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#
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# These rules create symlinks in /dev/disk directory.
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# Symlinks that depend on probing filesystem type,
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# label and uuid are created only if the device is not
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# suspended.
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# "add" event is processed on coldplug only!
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ACTION!="add|change", GOTO="dm_end"
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ENV{DM_UDEV_RULES_VSN}!="?*", GOTO="dm_end"
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ENV{DM_UDEV_DISABLE_DISK_RULES_FLAG}=="1", GOTO="dm_end"
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SYMLINK+="disk/by-id/dm-name-$env{DM_NAME}"
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ENV{DM_UUID}=="?*", SYMLINK+="disk/by-id/dm-uuid-$env{DM_UUID}"
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ENV{DM_SUSPENDED}=="1", GOTO="dm_end"
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ENV{DM_NOSCAN}=="1", GOTO="dm_watch"
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(BLKID_RULE)
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ENV{DM_UDEV_LOW_PRIORITY_FLAG}=="1", OPTIONS="link_priority=-100"
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ENV{ID_FS_USAGE}=="filesystem|other|crypto", ENV{ID_FS_UUID_ENC}=="?*", SYMLINK+="disk/by-uuid/$env{ID_FS_UUID_ENC}"
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ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_FS_LABEL_ENC}=="?*", SYMLINK+="disk/by-label/$env{ID_FS_LABEL_ENC}"
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ENV{ID_PART_ENTRY_UUID}=="?*", SYMLINK+="disk/by-partuuid/$env{ID_PART_ENTRY_UUID}"
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ENV{ID_PART_ENTRY_SCHEME}=="gpt", ENV{ID_PART_ENTRY_NAME}=="?*", SYMLINK+="disk/by-partlabel/$env{ID_PART_ENTRY_NAME}"
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ENV{ID_PART_ENTRY_SCHEME}=="gpt", ENV{ID_PART_GPT_AUTO_ROOT}=="1", SYMLINK+="gpt-auto-root"
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# Add inotify watch to track changes on this device.
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# Using the watch rule is not optimal - it generates a lot of spurious
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# and useless events whenever the device opened for read-write is closed.
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# The best would be to generete the event directly in the tool changing
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# relevant information so only relevant events will be processed
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# (like creating a filesystem, changing filesystem label etc.).
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#
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# But let's use this until we have something better...
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LABEL="dm_watch"
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OPTIONS+="watch"
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LABEL="dm_end"
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