Public bug reported:
Upstream bug report: https://github.com/karelzak/util-linux/issues/918
In summary if a disk partition used for zfs is at the end of the disk
then libblkid identifies the _whole_ disk as a zfs member which causes
udev information returned for other partitions to be incorrect. blkid
used directly reports the correct information.
# udevadm info /dev/sdb | grep ID_FS_TYPE
E: ID_FS_TYPE=zfs_member
# udevadm info /dev/sdb3 | grep ID_FS_TYPE
E: ID_FS_TYPE=zfs_member
# blkid /dev/sdb3
/dev/sdb3: UUID="4dcL2M-osmP-8MNF-kB3G-VobX-m1UX-aWGYk1" TYPE="LVM2_member"
PARTLABEL="bootvg" PARTUUID="3abeebf9-9699-49c1-9e6e-039afb3b04a2"
# gdisk -l /dev/sdb
GPT fdisk (gdisk) version 1.0.3
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sdb: 3907029168 sectors, 1.8 TiB
Model: HUS722T2TALA600
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): 45A8D0F8-D347-4D68-8DA1-72CDB2CCAC38
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 3907029134
Partitions will be aligned on 2048-sector boundaries
Total free space is 4205 sectors (2.1 MiB)
Number Start (sector) End (sector) Size Code Name
1 2048 4095 1024.0 KiB EF02 BIOSBOOT
2 4096 2099199 1023.0 MiB EF00 EFI_DATA
3 2099200 3147775 512.0 MiB 8E00 vg1
4 3147776 7342079 2.0 GiB 8E00 vg2
5 7342080 11536383 2.0 GiB 0700 recovery
6 11536384 3907029133 1.8 TiB BF01 ztank
This is fixed for me by rebuilding the util-linux patch and adding commit
f6e182078a3f05af3ce3b5e5a2d1956d4b9677e2 from the upstream git tree. Once that
is applied:
# udevadm info /dev/sdb | grep ID_FS_TYPE
(no output)
# udevadm info /dev/sdb3 | grep ID_FS_TYPE
E: ID_FS_TYPE=LVM2_member
This has been observed on Ubuntu bionic.
$ apt-cache policy util-linux
util-linux:
Installed: 2.31.1-0.4ubuntu3.7
Candidate: 2.31.1-0.4ubuntu3.7
Version table:
*** 2.31.1-0.4ubuntu3.7 500
500 http://gb.archive.ubuntu.com/ubuntu bionic-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu bionic-security/main amd64
Packages
100 /var/lib/dpkg/status
2.31.1-0.4ubuntu3 500
500 http://gb.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
On Ubuntu focal an ID_FS_TYPE is also incorrectly reported for the whole
disk but the information for individual partitions seems to be correct
although I don't have a system with same partition table from the
example. I haven't yet tried with the util-linux patch in focal.
** Affects: util-linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: bionic focal
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https://bugs.launchpad.net/bugs/1921108
Title:
blkid reports disk as zfs_member if it has a zfs_member partition
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