Hello, I tried to upgrade one node in my cluster to pacific in Ubuntu 20.04.2 and kernel 5.8.0-49. After upgrade OSDs wont start giving below error message This non-cephadm cluster is running bluestore OSDs which many were created in Luminous. 2021-04-03T10:36:07.698+0300 7f9b8d075f00 -1 bluestore(/var/lib/ceph/osd/ceph-29/block) _read_bdev_label failed to open /var/lib/ceph/osd/ceph-29/block: (1) Operation not permitted 2021-04-03T10:36:07.698+0300 7f9b8d075f00 -1 ESC[0;31m ** ERROR: unable to open OSD superblock on /var/lib/ceph/osd/ceph-29: (2) No such file or directoryESC[0m the directories are existing and have right permission. I have downgraded back to octopus and everything is running ok df -alh tmpfs 16G 28K 16G 1% /var/lib/ceph/osd/ceph-32 tmpfs 16G 28K 16G 1% /var/lib/ceph/osd/ceph-29 tmpfs 16G 28K 16G 1% /var/lib/ceph/osd/ceph-33 tmpfs 16G 28K 16G 1% /var/lib/ceph/osd/ceph-31 tmpfs 16G 28K 16G 1% /var/lib/ceph/osd/ceph-28 tmpfs 16G 52K 16G 1% /var/lib/ceph/osd/ceph-30