Netboot PXE to ceph disk image?

[jdw]

Is it theoretically possible to PXE boot a diskless server into Proxmox and then have it use a ceph block device as its root filesystem?

The incremental cost of putting at least one SSD in a node, however small, doesn't seem like a lot in terms of cost, power, and failure point, but over a bunch of nodes it really adds up.

Since we've got this hyper-redundant ceph cluster sitting there for the VM's, it'd be great to use it natively as well!

Thanks for any insight!

 

[navigator]

I thinks is totally possible, as ceph is represented in a lvm disk as war o diskimg

The problem is how to invoke this commandas and open ports in ceph for that. Also the key sharing.

The easiest way is to put a NFS Server over CephFs and share the image over NFS

This might help

https://serverfault.com/questions/538581/how-to-pxe-boot-multiple-servers-from-a-single-nfs-image