[SOLVED] Creating storage type CephFS fails: error with cfs lock 'file-storage_cfg': mount error: exit code 2

[cmonty14]

Hi,

after creating MDS and CephFS manually in my cluster, I want to create a storage of type cephfs.

However this fails with error:
error with cfs lock 'file-storage_cfg': mount error: exit code 2

This is the complete output:
root@ld3955:~# pvesm add cephfs pve_cephfs
mount error 2 = No such file or directory
create storage failed: error with cfs lock 'file-storage_cfg': mount error: exit code 2

root@ld3955:~# ls -l /mnt/
insgesamt 0
drwxr-xr-x 1 root root 20 Jun 12 12:09 pve
root@ld3955:~# ls -l /mnt/pve/
insgesamt 0
drwxr-xr-x 1 root root 0 Jun 12 12:09 pve_cephfs
root@ld3955:~# ls -l /mnt/pve/pve_cephfs/
insgesamt 0

I didn't manage to identify the root cause of this error.

Please advise how to fix this.

THX

 

[Alwin]

See your other post, your MDS is still creating it store.

 

[cmonty14]

OK. But this should not take hours.
My conclusion is that something is wrong with Ceph.

 

[cmonty14]

This "something wrong with Ceph" is identified:
Crush Map was resetted to some kind of default.
But this results in a faulty Ceph Cluster where device classes and rules are expected to be used in the crush map.