linux - 无法检测到 Linux 发行版或不受支持

Question

运行 Web 仪表板给出的此命令时出现此错误（将密钥更改为 *）

sudo curl -Ls https://get.cloud.docker.com/ | sudo -H sh -s f74*************************
ERROR: Cannot detect Linux distribution or it's unsupported
Learn more: https://docs.docker.com/docker-cloud/tutorials/byoh/

而 docker info 命令给出以下输出：

sudo docker info
Containers: 0
 Running: 0
 Paused: 0
 Stopped: 0
Images: 0
Server Version: 1.12.1
Storage Driver: aufs
 Root Dir: /var/lib/docker/aufs
 Backing Filesystem: extfs
 Dirs: 0
 Dirperm1 Supported: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: null host bridge overlay
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Security Options: apparmor
Kernel Version: 3.13.0-37-generic
Operating System: Ubuntu 14.04.1 LTS
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 15.56 GiB
Name: G1
ID: WNIV:V2NZ:**********
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
WARNING: No swap limit support
Insecure Registries:
 127.0.0.0/8

Ubuntu 14.04.1 不支持 docker cloud 吗？有关如何解决此问题的任何提示？