Note, the whitespace damage in the patch is not needed, just my text client cleaning up trailing whitespace.
With this patch applied, vgscan --mknodes no longer creates block devices in /dev/mapper root@ubuntu:/dev/mapper# ls -al total 0 drwxr-xr-x 2 root root 120 Apr 28 16:31 . drwxr-xr-x 17 root root 3800 Apr 28 15:25 .. crw------- 1 root root 10, 236 Apr 28 15:22 control lrwxrwxrwx 1 root root 7 Apr 28 16:31 mpatha -> ../dm-0 lrwxrwxrwx 1 root root 7 Apr 28 16:31 mpatha-part1 -> ../dm-1 lrwxrwxrwx 1 root root 7 Apr 28 16:31 mpatha-part2 -> ../dm-2 root@ubuntu:/dev/mapper# root@ubuntu:/dev/mapper# root@ubuntu:/dev/mapper# ls -al total 0 drwxr-xr-x 2 root root 120 Apr 28 16:31 . drwxr-xr-x 17 root root 3800 Apr 28 15:25 .. crw------- 1 root root 10, 236 Apr 28 15:22 control lrwxrwxrwx 1 root root 7 Apr 28 16:31 mpatha -> ../dm-0 lrwxrwxrwx 1 root root 7 Apr 28 16:31 mpatha-part1 -> ../dm-1 lrwxrwxrwx 1 root root 7 Apr 28 16:31 mpatha-part2 -> ../dm-2 root@ubuntu:/dev/mapper# rm -rf mpatha* root@ubuntu:/dev/mapper# vgscan --mknodes root@ubuntu:/dev/mapper# ls -al total 0 drwxr-xr-x 2 root root 60 Apr 28 16:40 . drwxr-xr-x 17 root root 3800 Apr 28 15:25 .. crw------- 1 root root 10, 236 Apr 28 15:22 control The relevant output: 16:40:35.179504 vgscan[55466] toollib.c:2288 No volume groups found. 16:40:35.179806 vgscan[55466] device_mapper/libdm-common.c:2205 WARK: setting a cookie 16:40:35.180137 vgscan[55466] device_mapper/libdm-common.c:2565 Udev cookie 0xd4d8d17 (semid 32786) created 16:40:35.180451 vgscan[55466] device_mapper/libdm-common.c:2585 Udev cookie 0xd4d8d17 (semid 32786) incremented to 1 16:40:35.180762 vgscan[55466] device_mapper/libdm-common.c:2457 Udev cookie 0xd4d8d17 (semid 32786) incremented to 2 16:40:35.181082 vgscan[55466] device_mapper/libdm-common.c:2690 Udev cookie 0xd4d8d17 (semid 32786) assigned to MKNODES task(15) with flags DISABLE_LIBRARY_FALLBACK (0x20) 16:40:35.181398 vgscan[55466] device_mapper/libdm-common.c:2709 WARK: got my cookie, return 1 16:40:35.181714 vgscan[55466] device_mapper/libdm-common.c:2214 WARK: running dmt with DM-DEV_DISABLE_LIBRARY_FALLBACK flag 16:40:35.182048 vgscan[55466] device_mapper/ioctl/libdm-iface.c:1853 dm names [ opencount flush ] [16384] (*1) 16:40:35.182379 vgscan[55466] device_mapper/ioctl/libdm-iface.c:1853 dm mknodes mpatha [ noopencount flush ] [16384] (*1) 16:40:35.182687 vgscan[55466] device_mapper/libdm-common.c:1484 mpatha: Stacking NODE_ADD (253,0) 0:6 0660 [trust_udev] 16:40:35.183004 vgscan[55466] device_mapper/ioctl/libdm-iface.c:1853 dm mknodes mpatha-part2 [ noopencount flush ] [16384] (*1) 16:40:35.183341 vgscan[55466] device_mapper/libdm-common.c:1484 mpatha-part2: Stacking NODE_ADD (253,2) 0:6 0660 [trust_udev] 16:40:35.183648 vgscan[55466] device_mapper/ioctl/libdm-iface.c:1853 dm mknodes mpatha-part1 [ noopencount flush ] [16384] (*1) 16:40:35.183968 vgscan[55466] device_mapper/libdm-common.c:1484 mpatha-part1: Stacking NODE_ADD (253,1) 0:6 0660 [trust_udev] 16:40:35.184275 vgscan[55466] device_mapper/libdm-common.c:2218 WARK: running out path 16:40:35.184563 vgscan[55466] activate/fs.c:492 Syncing device names 16:40:35.184862 vgscan[55466] device_mapper/libdm-common.c:1484 mpatha: Skipping NODE_ADD (253,0) 0:6 0660 [trust_udev] 16:40:35.185163 vgscan[55466] device_mapper/libdm-common.c:1484 mpatha-part2: Skipping NODE_ADD (253,2) 0:6 0660 [trust_udev] 16:40:35.185478 vgscan[55466] device_mapper/libdm-common.c:1484 mpatha-part1: Skipping NODE_ADD (253,1) 0:6 0660 [trust_udev] 16:40:35.185806 vgscan[55466] device_mapper/libdm-config.c:986 report/output_format not found in config: defaulting to basic 16:40:35.186112 vgscan[55466] device_mapper/libdm-config.c:1085 log/report_command_log not found in config: defaulting to 0 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lvm2 in Ubuntu. https://bugs.launchpad.net/bugs/1874501 Title: vgscan --mknodes creates block device multipath nodes in /dev/mapper Status in Ubuntu on IBM z Systems: New Status in lvm2 package in Ubuntu: Confirmed Bug description: Description: Ubuntu 20.04 LTS Release: 20.04 # apt-cache policy multipath-tools multipath-tools: Installed: 0.8.3-1ubuntu2 Candidate: 0.8.3-1ubuntu2 Version table: *** 0.8.3-1ubuntu2 500 500 http://ports.ubuntu.com/ubuntu-ports focal/main s390x Packages 100 /var/lib/dpkg/status /dev/mapper/mpatha is symlink which points to ../../dm-X device /dev/mapper/mpath is block device ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: multipath-tools 0.8.3-1ubuntu2 ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic s390x NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu27 Architecture: s390x CasperMD5CheckResult: pass CasperVersion: 1.445 Date: Thu Apr 23 17:32:12 2020 LiveMediaBuild: Ubuntu-Server 20.04 LTS "Focal Fossa" - Release s390x (20200423.1) ProcEnviron: TERM=screen.xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash SourcePackage: multipath-tools UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.multipath.conf: defaults { user_friendly_names yes skip_kpartx no verbosity 4 } mtime.conffile..etc.multipath.conf: 2020-04-23T15:47:28.659850 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874501/+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
