CentOS6.5升级内核 安装Docker

查看系统版本

lsb_release -a
uname
rpm -q redhat-release
cat /proc/version

升级内核

vi /etc/sysconfig/network-scripts/ifcfg-eth0 配制DNS
yum update nss
rpm –import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org 导入KEY
rpm -Uvh http://www.elrepo.org/elrepo-release-6-8.el6.elrepo.noarch.rpm 安装ELRepo
yum –enablerepo=elrepo-kernel install kernel-lt –y 安装内核
vi /etc/grub.conf # 改为default=0 修改引导文件,将默认引导改为0
reboot 启完成后查看内核版本

安装docker

yum install docker-io
提示错误：No package docker-io available，则运行
yum -y install http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
yum install epel-release
yum -y install https://get.docker.com/rpm/1.7.1/centos-6/RPMS/x86_64/docker-engine-1.7.1-1.el6.x86_64.rpm
service docker start
查看已安装的包：
yum list installed | grep docker
删除软件包：
yum -y remove docker-io.x86_64
删除镜像/容器：
rm -rf /var/lib/docker

Error

docker 安装之后，通过命令查看docker相关信息时，可能会出现错误：Get http:///var/run/docker.sock/v1.19/version: dial unix /var/run/docker.sock: no such file or directory. Are you trying to connect to a TLS-enabled daemon without TLS?
服务无法正常停止或重启，可能就是系统环境出现了问题，
You may have to enable the public_ol6_latest repo in order to get this package.
sudo yum-config-manager –enable public_ol6_latest
And then install the package:
sudo yum install device-mapper-event-libs