Issue

Description of problem: s390x z/VM system has the following partitioning layout: [root@rtt2 ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 50G 0 disk `-mpatha 253:0 0 50G 0 mpath `-mpatha1 253:1 0 50G 0 part /mnt/data sdb 8:16 0 50G 0 disk `-mpatha 253:0 0 50G 0 mpath `-mpatha1 253:1 0 50G 0 part /mnt/data sdc 8:32 0 50G 0 disk `-mpatha 253:0 0 50G 0 mpath `-mpatha1 253:1 0 50G 0 part /mnt/data sdd 8:48 0 50G 0 disk `-mpatha 253:0 0 50G 0 mpath `-mpatha1 253:1 0 50G 0 part /mnt/data dasda 94:0 0 61.1G 0 disk `-dasda1 94:1 0 61.1G 0 part / [root@rtt2 ~]# In 5 out of 6 attempts such a system failed to boot, because it's unable to mount /mnt/data: ... [ 3.861847] device-mapper: multipath service-time: version 0.3.0 loaded [ [0;32m OK [0m] Started Device-Mapper Multipath Device Controller. [ [0;32m OK [0m] Reached target Local File Systems (Pre). Mounting /mnt/data... [ 3.932056] /dev/disk/by-uuid/71721c97-ba1f-4c3f-8acb-ed0626c27c30: Can't ope n blockdev [ [0;1;31mFAILED [0m] Failed to mount /mnt/data. See 'systemctl status mnt-data.mount' for details. ... The block device exists and /mnt/data can be mounted after entering emergency mode: ... You are in emergency mode. After logging in, type "journalctl -xb" to view system logs, "systemctl reboot" to reboot, "systemctl default" or "exit" to boot into default mode. Give root password for maintenance (or press Control-D to continue): [root@rtt2 ~]# ls -l /dev/disk/by-uuid/71721c97-ba1f-4c3f-8acb-ed0626c27c30 [root@rtt2 ~]# ls -l /dev/disk/by-uuid/71721c97-ba1f-4c3f-8acb-ed0626c27c30 ls -l /dev/disk/by-uuid/71721c97-ba1f-4c3f-8acb-ed0626c27c30 lrwxrwxrwx. 1 root root 10 Jul 6 12:56 /dev/disk/by-uuid/71721c97-ba1f-4c3f-8ac b-ed0626c27c30 -> ../../dm-1 [root@rtt2 ~]# mount /mnt/data [root@rtt2 ~]# mount /mnt/data mount /mnt/data [ 531.847048] XFS (dm-1): Mounting V5 Filesystem [ 531.885715] XFS (dm-1): Ending clean mount [root@rtt2 ~]# Version-Release number of selected component (if applicable): RHEL-8.7.0-20220705.3 systemd-239-60.el8 How reproducible: 5 out of 6 attempts Steps to Reproduce: 1. Install an s390x system with / on a partition on a DASD disk and /mnt/data on a partition on a zFCP multipath disk. 2. Reboot the installed system few times. Actual results: Sometimes/often the system fails to mount /mnt/data during boot and the system fails to boot. Expected results: Successful boot with all filesystems mounted.

Release Notes

No. of Comments

Resolution

Unresolved