My server configuration is as follows:

A ceph cluster server(
B ceph cluster server(
C ceph client (

I could mount using the following ceph-fuse command:

sudo ceph-fuse -k /etc/ceph/ceph.client.admin.keyring -m /mnt/mycephfs/

But I don't know how to mount with /etc/fstab.

The following setting is fails.

sudo vim /etc/fstab    /mnt/mycephfs   fuse.ceph name=admin,secretfile=/home/ec2-user/admin.secret,noatime    0       2
sudo mount -a                -> Syntax error occured.

Using kernel driver mount instead of ceph-fuse is works.

sudo vim /etc/fstab    /mnt/mycephfs  ceph name=admin,secretfile=/home/ec2-user/admin.secret,noatime    0       2
sudo mount -a                -> success

IP specification can not be found even in the official tutorial.

I don't know why there is no way to specify IP of each cluster server in official tutorial.

If it could be mount without specifying IP, I would like to know its principle.

Am I misunderstanding something?

Let me know there is something to be a hint.

Thank you for reading my question.

  • I think the time arrived as you have to start to use punctuations. Look, how beautiful your post become :-)
    – peterh
    Dec 11 '17 at 3:57

I don't have this installed, so cannot test. But the manual says you must supply an ID in the first column, and I don't see one in your attempt. The cluster IP may be found in ceph.conf, or it is supposed to be possible to place in the DEVICE field. So I would expect either of these to work:

If IP is in ceph.conf

id=admin    /mnt/mycephfs   fuse.ceph name=admin,secretfile=/home/ec2-user/admin.secret,noatime    0       2

If IP is not in ceph.conf, or if you want to override, then:

id=admin,m=    /mnt/mycephfs   fuse.ceph name=admin,secretfile=/home/ec2-user/admin.secret,noatime    0       2

Given the ID appearing in the DEVICE field, I don't know if it needs to be in the option field at all.

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