[SOLVED] Unable to mount CephFS on Proxmox VMs

[lama]

Hello,

I'm trying to mount use CephFS as a shared storage location for Proxmox-hosted VMs but I'm encountering issues mounting the CephFS on Proxmox VMs, with the VMs hosted on the same nodes that Ceph are installed on.

I've followed https://pve.proxmox.com/pve-docs/chapter-pveceph.html to install Ceph Quincy on each of my ProxMox nodes to install Ceph and setup & configure the various Ceph components (e.g. monitors, managers, OSDs, MDS, pools and a CephFS). Whilst I can access this shared storage from each ProxMox node in /mnt/pve/cephfs, I can't mount CephFS using the Kernel Driver on any of the Proxmox-hosted VMs.

Following https://docs.ceph.com/en/quincy/cephfs/mount-prerequisites/:

• I've created a minimal conf file on each VM
• Created a CephX user and obtained the associated secret key.

Using the following command
mount -t ceph user@d8367345-23df-4sdd-b233-dccae02203a0.cephfs=/ -o mon_addr=192.168.10.30:6789,secret=AQBX/wljacvdIhAAUgeMY9z4d3kKzi7ngzl4iA== gives the following error message:

mount: user@d8367345-23df-4sdd-b233-dccae02203a0.cephfs=/: can't find in /etc/fstab.

Would anyone be able to provide any guidance on how I can fix this? Thank you.

 

[lama]

Solved.

For reference, enter the following commands within the VM

sudo apt install ceph-common sudo mkdir /etc/ceph ssh root@[node] "sudo ceph config generate-minimal-conf" | sudo tee /etc/ceph/ceph.conf sudo chmod 644 /etc/ceph/ceph.conf ssh root@[node] "sudo ceph fs authorize cephfs client.[user] / rw" | sudo tee /etc/ceph/ceph.client.[user].keyring sudo chmod 600 /etc/ceph/ceph.client.[user].keyring sudo mkdir /mnt/cephfs sudo su mount -t ceph [mon1]:6789,[mon2]:6789:/ /mnt/cephfs -o name=[user]

 

[Circenn]

Thank you so much for providing the steps that worked. I'd been struggling with this as well and settled on bind mounts

 

[kifeo]

for reference, the fstab (/etc/fstab) entry will correspond to :
[mon1]:6789,[mon2]:6789:/ /mnt/cephfs ceph name=[user]

 

[blackpaw]

for reference, the fstab (/etc/fstab) entry will correspond to :
[mon1]:6789,[mon2]:6789:/ /mnt/cephfs ceph name=[user]

Thanks so much! your guide made it so easy