Hi guys: I had setup ceph cluster and mount rbd on one machine. I delete ceph cluster and reinstall follow the manual. but I still have rbd device mount on my machine. I can not access mount point. This is my detail info, I want to delete all old rbd device, what should I do? node1 $> rbd device list id pool namespace image snap device 0 rbd foo - /dev/rbd0 1 kube kubernetes-dynamic-pvc-1cc43c5b-ade1-11e9-9a92-863e3c12afd1 - /dev/rbd1 node1 $> df Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/rootvg-lv_root 10995712 2528388 8467324 23% / devtmpfs 2012656 0 2012656 0% /dev tmpfs 2023588 0 2023588 0% /dev/shm tmpfs 2023588 207340 1816248 11% /run tmpfs 2023588 0 2023588 0% /sys/fs/cgroup /dev/sda1 520868 116936 403932 23% /boot /dev/mapper/rootvg-lv_var 5232640 3226816 2005824 62% /var /dev/mapper/rootvg-lv_tmp 5232640 33060 5199580 1% /tmp /dev/rbd0 3997376 16392 3754888 1% /mnt tmpfs 404720 0 404720 0% /run/user/1001 node1 $> rbd trush list rbd: error opening default pool 'rbd' Ensure that the default pool has been created or specify an alternate pool name. node1 $> rbd info rbd/foo rbd: error opening default pool 'rbd' Ensure that the default pool has been created or specify an alternate pool name. [https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif]<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> 无病毒。www.avast.com<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>