Ceph

Hi, I was trying to fix this today. But in my cluster, disk was activated automatically right after ceph-disk-prepare.
When I tried ceph-disk-activate, it said the the disk was mounted already.
I was confused. Can someone explain the magic behide it? Thanks!
The log http://pastebin.com/VUFfVATb
I didn't modify the code.
OS: ubuntu 12.04
ceph: 0.72.2
ceph-deploy:1.3.5

After the disk are prepared, udev notices the disk label and this rule calls ceph-disk-activate: https://github.com/ceph/ceph/blob/master/udev/95-ceph-osd.rules

I change the ceph-disk a little bit:
In mount_active, mount the disk using default mount options, then activate it to get the cluster name.
Read the right mount options from {cluster}.conf. Unmount and pass the right options to move_mount

I'm no sure what would happen if using default mount options for activate() temporally. But it works in my cluster.

https://github.com/ceph/ceph/pull/1206