Public bug reported: see upstream bug https://github.com/systemd/systemd/issues/6110
fix https://github.com/poettering/systemd/commit/e2c48187ccb9668dab9f025c9c4228e97927179f udev calls libblkid with flag BLKID_SUBLKS_BADCSUM to see all superblocks but data in filesystem could be detected as broken superblock of other filesystem: root@vla2-4101:~# wipefs -n /dev/sdf2 offset type ---------------------------------------------------------------- 0xae9c36ff006 nilfs2 [filesystem] LABEL: 9-627f5c82-a8f363c9-a716ffb1) ea9a210be67212ac ffff0ae104ca29ef 2019-02-14 05: UUID: 2c205265-6164-5365-7373-696f6e49643a 0x438 ext4 [filesystem] LABEL: /yt/disk5 UUID: 778742b8-1ac6-45cf-a459-2f7919ba5dd4 normal blkid is fine root@vla2-4101:~# blkid -p /dev/sdf2 /dev/sdf2: LABEL="/yt/disk5" UUID="778742b8-1ac6-45cf-a459-2f7919ba5dd4" VERSION="1.0" TYPE="ext4" USAGE="filesystem" PART_ENTRY_SCHEME="gpt" PART_ENTRY_NAME="primary" PART_ENTRY_UUID="259f0f4b-eb1e-4c34-a03d-65d04875f10c" PART_ENTRY_TYPE="ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" PART_ENTRY_NUMBER="2" PART_ENTRY_OFFSET="30720" PART_ENTRY_SIZE="23435786240" PART_ENTRY_DISK="8:80" builtin blkid sees two different superblocks and cannot decide root@vla2-4101:~# udevadm test-builtin blkid /class/block/sdf2 calling: test-builtin === trie on-disk === tool version: 229 file size: 6841781 bytes header size 80 bytes strings 1755245 bytes nodes 5086456 bytes Load module index Network interface NamePolicy= disabled on kernel command line, ignoring. timestamp of '/etc/systemd/network' changed timestamp of '/lib/systemd/network' changed Parsed configuration file /lib/systemd/network/99-default.link Created link configuration context. probe /dev/sdf2 raid offset=0 Unload module index Unloaded link configuration context. root@vla2-4101:~# apt-cache policy udev udev: Installed: 229-4ubuntu21.17 Candidate: 229-4ubuntu21.17 ** Affects: systemd (Ubuntu) Importance: Undecided Status: New ** Tags: xenial ** Tags added: xenial ** Summary changed: - udev cannot identify fs uuid by builtin blkid (fixed in upstream) + [xenial] udev cannot identify fs uuid by builtin blkid (fixed in upstream) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1820874 Title: [xenial] udev cannot identify fs uuid by builtin blkid (fixed in upstream) Status in systemd package in Ubuntu: New Bug description: see upstream bug https://github.com/systemd/systemd/issues/6110 fix https://github.com/poettering/systemd/commit/e2c48187ccb9668dab9f025c9c4228e97927179f udev calls libblkid with flag BLKID_SUBLKS_BADCSUM to see all superblocks but data in filesystem could be detected as broken superblock of other filesystem: root@vla2-4101:~# wipefs -n /dev/sdf2 offset type ---------------------------------------------------------------- 0xae9c36ff006 nilfs2 [filesystem] LABEL: 9-627f5c82-a8f363c9-a716ffb1) ea9a210be67212ac ffff0ae104ca29ef 2019-02-14 05: UUID: 2c205265-6164-5365-7373-696f6e49643a 0x438 ext4 [filesystem] LABEL: /yt/disk5 UUID: 778742b8-1ac6-45cf-a459-2f7919ba5dd4 normal blkid is fine root@vla2-4101:~# blkid -p /dev/sdf2 /dev/sdf2: LABEL="/yt/disk5" UUID="778742b8-1ac6-45cf-a459-2f7919ba5dd4" VERSION="1.0" TYPE="ext4" USAGE="filesystem" PART_ENTRY_SCHEME="gpt" PART_ENTRY_NAME="primary" PART_ENTRY_UUID="259f0f4b-eb1e-4c34-a03d-65d04875f10c" PART_ENTRY_TYPE="ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" PART_ENTRY_NUMBER="2" PART_ENTRY_OFFSET="30720" PART_ENTRY_SIZE="23435786240" PART_ENTRY_DISK="8:80" builtin blkid sees two different superblocks and cannot decide root@vla2-4101:~# udevadm test-builtin blkid /class/block/sdf2 calling: test-builtin === trie on-disk === tool version: 229 file size: 6841781 bytes header size 80 bytes strings 1755245 bytes nodes 5086456 bytes Load module index Network interface NamePolicy= disabled on kernel command line, ignoring. timestamp of '/etc/systemd/network' changed timestamp of '/lib/systemd/network' changed Parsed configuration file /lib/systemd/network/99-default.link Created link configuration context. probe /dev/sdf2 raid offset=0 Unload module index Unloaded link configuration context. root@vla2-4101:~# apt-cache policy udev udev: Installed: 229-4ubuntu21.17 Candidate: 229-4ubuntu21.17 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1820874/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
