Resolving DRBD error lk_bdev_save (/var/lib/drbd/drbd-minor-0.lkbd) failed: No such file or directory on centos 7 system

Hi everyone! Just a small post here because I have not found anything about this error on the web (at least not on a english-speaking website ;) ) I recently installed and configured drbd on a centos 7 machine. drbdadm came in version 8.9.2 (api:1) GIT-hash: de9236084d57a09160b366e5fdf5b481c5cc163d build by mockbuild@, 2015-04-10 06:40:59 when I tried to create my resource I got the following error

$drbdadm create-md drbd01

error msg:

initializing activity log

NOT initializing bitmap

Writing meta data...

lk_bdev_save(/var/lib/drbd/drbd-minor-0.lkbd) failed: No such file or directory

New drbd meta data block successfully created.

lk_bdev_save(/var/lib/drbd/drbd-minor-0.lkbd) failed: No such file or directory

searching the internet I found nothing about it so I just looked at the error and resolved it using

mkdir /var/lib/drbd/

I think the rpm package from ELRepo I installed just missed that command. Hope this helps anyone