Docker 1.9.1 RC1 released with lots of bug fixes

Docker 1.9.1 rc1 recently released, fixes some bugs and addresses some security issues. Docker is an open platform for developers and sysadmins for developing, shipping, and running applications. Docker is designed to deliver your applications faster. With Docker you can separate your applications from your infrastructure and treat your infrastructure like a managed application.


Docker 1.9.1 – rc1 changelog


  • Do not prevent daemon from booting if images could not be restored
  • Force IPC mount to unmount on daemon shutdown/init
  • Turn IPC unmount errors into warnings
  • Fix docker stats performance regression
  • Clarify cryptic error message upon docker logs if –log-driver=none
  • Fix seldom panics
  • Fix opq whiteouts problems for files with dot prefix
  • devicemapper: try defaulting to xfs instead of ext4 for performance reasons
  • selinux: only relabel if user requested so with the z option


  • Fix docker login on windows
  • Fix bug with docker inspect output when not connected to daemon
  • Fix docker inspect -f {{.HostConfig.Dns}} somecontainer


  • Fix regression with symlink behavior in ADD/COPY


  • Allow passing a network ID as an argument for –net
  • Fix connect to host and prevent disconnect from host for host network
  • Fix –fixed-cidr issue when gateway ip falls in ip-range and ip-range is not the first block in the network
  • Restore deterministic IPv6 generation from MAC address on default bridge network
  • Allow port-mapping only for endpoints created on docker run

Install Docker 1.9.1 – rc1 on Ubuntu OS

sudo apt-get update

sudo apt-get install

sudo ln -sf /usr/bin/ /usr/local/bin/docker

sudo sed -i '$acomplete -F _docker docker' /etc/bash_completion.d/

sudo docker run -i -t ubuntu /bin/bash

sudo docker info
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