docker安装
docker安装不支持2.6 即 centos 6.5内核
升级内核
导入public key
wget https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm --import RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-6-8.el6.elrepo.noarch.rpm
安装**kernel-lt(lt=long-term)**
yum --enablerepo=elrepo-kernel install kernel-lt -y
或者安装kernel-ml(ml=mainline)
yum --enablerepo=elrepo-kernel install kernel-ml -y
4.>编辑grub.conf文件,修改Grub引导顺序
vim /etc/grub.conf # grub.conf generated by anaconda # default=0 timeout=5 splashimage=(hd0,0)/boot/grub/splash.xpm.gz hiddenmenu title CentOS (3.10.28-1.el6.elrepo.x86_64) root (hd0,0) kernel /boot/vmlinuz-3.10.28-1.el6.elrepo.x86_64 ro root=UUID=0a05411f-16f2-4d69-beb0-2db4cefd3613 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD crashkernel=auto.UTF-8 rd_NO_LVM rd_NO_DM rhgb quiet initrd /boot/initramfs-3.10.28-1.el6.elrepo.x86_64.img title CentOS (2.6.32-431.3.1.el6.x86_64) root (hd0,0) kernel /boot/vmlinuz-2.6.32-431.3.1.el6.x86_64 ro root=UUID=0a05411f-16f2-4d69-beb0-2db4cefd3613 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD crashkernel=auto.UTF-8 rd_NO_LVM rd_NO_DM rhgb quiet initrd /boot/initramfs-2.6.32-431.3.1.el6.x86_64.img
确认刚安装好的内核在哪个位置,然后设置default值(从0开始),一般新安装的内核在第一个位置,所以设置default=0
5.>重启,查看内核版本号.
[root@localhost ~]# reboot [root@localhost ~]# uname -r 3.10.104-1.el6.elrepo.x86_64
至此,CentOS6.5的内核升级完成,下面就可以安装docker了.
二.安装docker
直接使用命令: yum install docker-io 是会报错的!!! 提示:No package docker-io available.
需要先安装yum 源.
yum -y install http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
再执行
sudo yum install device-mapper-event-libs
yum install docker-io
就可以正常安装了!!
在安装的过程中由于dns的问题报了错,所以要设置好自己的dns确保服务器能连接到外网,我当时设置的dns为:
vim /etc/resolv.conf nameserver 8.8.8.8 nameserver 8.8.4.4
启动docker
service docker start
查看docker版本:
[root@localhost ]# docker version Client version: 1.7.1 Client API version: 1.19 Go version (client): go1.4.2 Git commit (client): 786b29d/1.7.1 OS/Arch (client): linux/amd64 Server version: 1.7.1 Server API version: 1.19 Go version (server): go1.4.2 Git commit (server): 786b29d/1.7.1 OS/Arch (server): linux/amd64
查看docker日志.
cat /var/log/docker
至此,docker安装完成!!!
三、卸载docker
列出你安装过的包
[root@localhost ~]# yum list installed | grep docker docker-io.x86_64 1.7.1-2.el6 @epel
删除软件包
yum -y remove docker-io.x86_64
rm -rf /var/lib/docker
四、升级docker版本为1.10.3
升级之前停止docker服务,并将原有的docker服务进行备份. mv /usr/bin/docker /usr/bin/docker.bak
nohup wget -c https://get.docker.com/builds/Linux/x86_64/docker-1.10.3 -O /usr/bin/docker
给执行权限:chmod 755 /usr/bin/docker 然后重启服务,并查看版本.