Actually it seems this was caused by subiquity running vgscan --mknodes during block probing:
root@ubuntu-server:/# rm -rf /dev/mapper/mpath* root@ubuntu-server:/# ls -l /dev/mapper/ total 0 crw------- 1 root root 10, 236 Apr 24 05:57 control root@ubuntu-server:/# vgscan --mknodes root@ubuntu-server:/# ls -l /dev/mapper/ total 0 crw------- 1 root root 10, 236 Apr 24 05:57 control brw-rw---- 1 root disk 253, 0 Apr 27 21:16 mpatha brw-rw---- 1 root disk 253, 1 Apr 27 21:16 mpatha-part1 retargeting bug... ** Package changed: multipath-tools (Ubuntu) => lvm2 (Ubuntu) ** Summary changed: - /dev/mapper/mpath* are not symlinks from udev consistently + vgscan --mknodes creates block device multipath nodes in /dev/mapper -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1874501 Title: vgscan --mknodes creates block device multipath nodes in /dev/mapper To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1874501/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
