The operation has completed successfully.
+ hdparm -z /dev/sdb
/dev/sdb:
re-reading partition table
+ /sbin/sgdisk --largest-new=0 --mbrtogpt -- /dev/sdb
Warning: The kernel is still using the old partition table.
The new table will be used at the next reboot or after you
run partprobe(8) or kpartx(8)
The operation has completed successfully.
+ hdparm -z /dev/sdb
/dev/sdb:
re-reading partition table
BLKRRPART failed: Device or resource busy
+ 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