/init: permission denied

[bofeng]

hi,
I use ubuntu and I pull the image from docker:

docker pull yelp/dockersh

Then I run this:

docker run -v /usr/local/bin:/target yelp/dockersh

And I edit my /etc/dockersh file:

[dockersh]
imagename=busybox
shell=/bin/ash
usercwd=/

When I run "dockersh" as root:

$ dockersh
could not start container: exit status 1:
fc899bc0609f8549fce68c4fd9eadf677e6622a03af8b453d76b465e7860e55e
2014/09/01 15:43:34 Error response from daemon: Cannot start container fc899bc0609f8549fce68c4fd9eadf677e6622a03af8b453d76b465e7860e55e: exec: "/init": permission denied

It gave me the error above, is there I did something wrong? Thank you very much!

Add:
Here is my docker version information:
Client version: 1.2.0
Client API version: 1.14
Go version (client): go1.3.1
Git commit (client): fa7b24f
OS/Arch (client): linux/amd64
Server version: 1.2.0
Server API version: 1.14
Go version (server): go1.3.1

[bofeng]

solved by using
"/usr/local/bin/dockersh" instead of just "dockersh"