CentOS-6.5在线安装docker-1.7教程(升级内核)

CentOS-6.5在线安装docker-1.7教程(升级内核)

前一篇博客讲到了Centos6.5在线安装docker1.7的方式。由于docker官方推荐的内核版本是3.10以上，本文在上一篇基础上增加了升级内核的方法，然后再3.10内核基础上安装docker。

1.  安装EPEL

For CentOS-6.5, theDocker package is part of Extra Packages for EnterpriseLinux (EPEL) repository, a community effort to create and maintain additionalpackages for the RHEL distribution. Firstly, you need to ensure you have theEPEL repository enabled. Please follow theEPEL installation instructions.

1.1 安装yum优先级插件

# yum installyum-priorities

1.2 安装epel

# rpm -Uvh http://mirrors.ustc.edu.cn/fedora/epel/6/x86_64/epel-release-6-8.noarch.rpm

# rpm -Uvhhttp://rpms.famillecollet.com/enterprise/remi-release-6.rpm

1.3 查看是否安装成功

# rpm -qepel-release

1.4 导入key：

# rpm --import/etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

1.5 修改/etc/yum.repos.d/epel.repo文件，在[epel]最后添加一条属性 priority=11

# vi/etc/yum.repos.d/epel.repo

1.6  重建缓存

# yum makecache

安装完成之后，确保yum list能找到docker的相关rpm包。

2.  升级内核

2.1  导入public key

# rpm --importhttps://www.elrepo.org/RPM-GPG-KEY-elrepo.org

2.2  安装ELRepo到CentOS-6.5中

# rpm -ivhhttp://www.elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm

2.3  安装kernel-lt（lt=long-term）这个比较稳定，会持续更新，二选一。

# yum--enablerepo=elrepo-kernel install kernel-lt -y

可以装kernel-ml（ml=mainline）

# yum--enablerepo=elrepo-kernel install kernel-ml -y

2.4  修改Grub引导顺序

# vim /etc/grub.conf设置default=0

2.5  重启

2.6  uname -a检查

3.   安装docker

For CentOS-6, thereis a package name conflict with a system tray application and its executable,so the Docker RPM package was calleddocker-io.To proceed with docker-io installation on CentOS-6, you may need toremove thedocker package first. Next,let's install the docker-io package which willinstall Docker on our host.

3.1 remove docker

# yum remove docker

3.2 安装docker

# yum install docker-io

4.    更新device-mapper-libs

# yum upgrade device-mapper-libs

5.    设置开机自启

# chkconfig docker on

6.    检查支持情况

# lxc-checkconfig

7.    启动cgroup

# service cgconfig start

8.  启动docker

# docker –d &

9.    测试

# docker ps -a