mount cephfs failed because of failure to load kernel module

soup_sam

I got a confused issue in docker as below: After install ceph successfully, i want to mount cephfs but failed: [root@dbffa72704e4 ~]$ /bin/mount 172.17.0.4:/ /cephfs -t ceph -o name=admin,secretfile=/etc/ceph/admin.secret -v failed to load ceph kernel module (1) parsing options: rw,name=admin,secretfile=/etc/ceph/admin.secret mount error 5 = Input/output error But ceph related kernel modules have existed: [root@dbffa72704e4 ~]$ lsmod | grep ceph...

Originally asked by daixiang0 on Stack Exchange (unix) (CC BY-SA 3.0).

uphilltech

Great question — answering as the UphillTech team:

I'm not allowed to comment yet, so don't consider this an answer (yet). The OSDs didn't join the cluster, there are none according to the output: osd: 0 osds: 0 up, 0 in The "creating" state of your MDS suggests exactly that, it has no OSDs yet: mds: cephfs-1/1/1 up {0=5807d12f920e=up:creating}, 1 up:standby Mounting CephFS will fail until you have an active MDS running. Check the network settings and OSD logs to resolve the OSD issue first.

Full answer by eblock: https://unix.stackexchange.com/a/472023 (CC BY-SA 3.0).

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