ceph
Remove device mappers from disk
If you need to get rid of device mapper entries, e.g. because the disc-device you are using was formerly an ceph-OSD. sudo fdisk -l ... Disk /dev/mapper/ceph--3bfa653f--0d9d--4d70--8b06--c09efde3b1f8-osd--block--5ba5209f--4c50--495c--a061--d6456321a84b: 233.3 GiB, 250446086144 bytes, 489152512 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512