2014/08/25 15:03:46 docker daemon: 1.1.2 1df87acb3375b6c2765e2202f178dee699647448; execdriver: native; graphdriver: Btrfs
[d8e64386] +job serveapi(unix:///var/run/docker.sock)
[d8e64386] +job initserver()
[d8e64386.initserver()] Creating server
driver not supported
[d8e64386] -job initserver() = ERR (1)
2014/08/25 15:03:46 driver not supported
2014/08/25 15:08:47 docker daemon: 1.1.2 1df87acb3375b6c2765e2202f178dee699647448; execdriver: native; graphdriver: Btrfs
[748c1bf7] +job serveapi(unix:///var/run/docker.sock)
[748c1bf7] +job initserver()
[748c1bf7.initserver()] Creating server
driver not supported
[748c1bf7] -job initserver() = ERR (1)
2014/08/25 15:08:47 driver not supported

 

Drive is formatted as BTRFS, i'm using a drive that I manually mount at boot, I name it the system drive.

Mount point is /mnt/system/.

Installation resides in /mnt/system/data/docker.

Everytime I try and start docker the above happens and the service remains as shut down.

Using latest beta release of unRAID in free mode, as I want to test it and create docker containers before migrating my licensed v5 server to v6

Late reply on this issue, I know, but wanted to see if this problem persists for you in the current beta or if anyone else has had this problem.  If not, we'll close out the report.  Also, want to make sure your non-array partition that you're using is formatted with BTRFS. 

Beta 12 is good to go.