Hi,
just a little update on the issue.
As soon as I omit the encryption part I can easily add the device to the
btrfs filesystem. It does not matter if the crypted device is on top of
DRBD or directly on the /dev/sdc. In both cases btrs refuses to add the
device when a luks-encrypted device is on top.
In case I am swapping my setup (drbd on top of encryption) and add the
drbd device to btrfs it works without any issues.
However, I prefer the other way round- and as the other two btrfs
devices are both encryption on top of drbd it should work...
It appears it does not like to add a third device-mapper device...
Let me know how I can help in debugging. If i have some time I will
setup a machine trying to reproduce this.
any ideas otherwise? Let me know!
Thanks!
/KNEBB
