Use docker-machine to start rancheros, can not login after switching to alpine console.

[kingsd041]

RancherOS Version: (ros os version)
v1.1.3-rc1
Where are you running RancherOS? (docker-machine, AWS, GCE, baremetal, etc.)
docker-machine
Steps to Reproduce:

1. I use the docker-machine to start rancheros and switch the alpine console

# docker-machine create -d virtualbox --virtualbox-boot2docker-url rancheros.iso ros-1
# ros console switch alpine

2. Login to rancheros using docker-machine ssh ros-1
   Results:
   Login failed, return "exit status 255"

# docker-machine ssh ros-1
exit status 255

I can see the error in syslog:

Jan  5 13:25:10 ros-1 sshd[1976]: rexec line 133: Deprecated option ServerKeyBits
Jan  5 13:25:10 ros-1 sshd[1976]: User docker not allowed because account is locked
Jan  5 13:25:10 ros-1 sshd[1976]: Connection closed by invalid user docker 10.0.2.2 port 65522 [preauth]
Jan  5 13:25:11 ros-1 agetty[1978]: ttyS0: failed to get terminal attributes: I/O error
Jan  5 13:25:11 ros-1 agetty[1979]: ttyS1: failed to get terminal attributes: I/O error
Jan  5 13:25:11 ros-1 kernel: [ 1065.744805] ttyS ttyS0: tty_port_close_start: tty->count = 1 port count = 2
Jan  5 13:25:11 ros-1 kernel: [ 1065.745275] ttyS ttyS1: tty_port_close_start: tty->count = 1 port count = 2

[niusmallnan]

Check the file /etc/shadow, user docker is locked.:

rancher:*:17540:0:99999:7:::
docker:!:17540:0:99999:7:::

This blog would be helpful. http://arlimus.github.io/articles/usepam/

It should be fixed in the next alpine console image.

[kingsd041]

RancherOS v1.2.0-rc2 version has been fixed