+ dev_metadata=/dev/disk/by-partuuid/55015fcb-dcae-4ced-86f2-c46a0e22ae17
+ dev_block=/dev/disk/by-partuuid/35964ca6-b825-4cef-a784-cc4531cd73f2
+ /sbin/sgdisk --new=0:0:+100M --change-name=0:ceph data --partition-guid=0:55015fcb-dcae-4ced-86f2-c46a0e22ae17 --typecode=0:4fbd7e29-9d25-41b8-afd0-062c0ceff05d --mbrtogpt -- /dev/sdb
Creating new GPT entries.
Setting name!
partNum is 0
REALLY setting name!
The operation has completed successfully.
+ /sbin/udevadm settle --timeout=600
this triggers a mount!!!
Feb 18 19:48:32 unconfigured-host kernel: [ 1608.438792] sdb: sdb1
Feb 18 19:48:33 unconfigured-host kernel: [ 1609.490182] XFS (sdb1): Mounting V5 Filesystem
Feb 18 19:48:33 unconfigured-host kernel: [ 1609.500185] XFS (sdb1): Ending clean mount
root@unconfigured-host:~# mount | grep sdb
/dev/sdb1 on /var/lib/ceph/osd/ceph-0 type xfs (rw,noatime,attr2,inode64,noquota)
That's a previous mount point that did not exist prior to calling udevadm.
Nico Schottelius