Centos6、Centos7更新内核并安装Docker容器

左手的ㄟ右手 2023-07-12 14:48 104阅读 0赞

**一、centos6安装docker**  
**1、更新内核**  
docker需要内核版本大于3.10，首先需要更新内核  
**1）、查看内核**  
\[root@www etc\]\# uname -r  
2.6.32-279.el6.x86\_64  
\[root@www ~\]\# cat /proc/version  
Linux version 2.6.32-279.el6.x86\_64 (mockbuild@c6b9.bsys.dev.centos.org) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) \#1 SMP Fri Jun 22 12:19:21 UTC 2012  
\[root@www ~\]\# yum -y update  
\[root@www ~\]\# yum makecache                                                                                                                                                  | 285 kB     00:00       
**2）、 添加ELRepo源，导入public key，导入公共密钥**  
elrepo是CentOS稳定的软件源，这个第三方源主要是提供硬件驱动、内核更新方面的支持，如显卡、无线网卡、内核等等。  
\[root@ca206 ~\]\# rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org  
**3）、安装ELRepo**  
\[root@www ~\]\#  rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm  
Retrieving http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm  
error: not an rpm package  
Retrieving http://elrepo.org/elrepo-release-7.0-4.el7.elrepo.noarch.rpm  
error: Failed dependencies:  
    glibc = 2.17 is needed by elrepo-release-7.0-4.el7.elrepo.noarch  
7报错      
\[root@www ~\]\# rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org  
换成6后可以  
\[root@www ~\]\#  rpm -Uvh http://www.elrepo.org/elrepo-release-6-8.el6.elrepo.noarch.rpm  
Retrieving http://www.elrepo.org/elrepo-release-6-8.el6.elrepo.noarch.rpm  
 rpm -i Uvh http://dl.fedoraproject.org/pub/epel/6/x86\_64/epel\_release-6-8.noarch.rpm  
Preparing...                \#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\# \[100%\]  
   1:elrepo-release         \#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\# \[100%\]  
\[root@www ~\]\#  
\[root@www ~\]\# yum --disablerepo="\*" --enablerepo="elrepo-kernel" list available  
已加载插件：fastestmirror, refresh-packagekit, security  
Repository c6-media is listed more than once in the configuration  
Loading mirror speeds from cached hostfile  
 \* elrepo-kernel: hkg.mirror.rackspace.com  
elrepo-kernel                                                                                                                                                           | 2.9 kB     00:00       
elrepo-kernel/primary\_db                                                                                                                                                |  13 kB     00:00       
可安装的软件包  
elrepo-release.noarch                                                                      6-9.el6.elrepo                                                                         elrepo-kernel  
kernel-lt.x86\_64                                                                           4.4.215-1.el6.elrepo                                                                   elrepo-kernel  
kernel-lt-devel.x86\_64                                                                     4.4.215-1.el6.elrepo                                                                   elrepo-kernel  
kernel-lt-doc.noarch                                                                       4.4.215-1.el6.elrepo                                                                   elrepo-kernel  
kernel-lt-headers.x86\_64                                                                   4.4.215-1.el6.elrepo                                                                   elrepo-kernel  
perf.x86\_64                                                                                4.4.215-1.el6.elrepo                                                                   elrepo-kernel  
python-perf.x86\_64                                                                         4.4.215-1.el6.elrepo                                                                   elrepo-kernel  
\[root@www ~\]\#  
\--enablerepo 选项开启 CentOS 系统上的指定仓库。默认开启的是 elrepo，这里用 elrepo-kernel 替换。  
**4）、内核版本更新**  
安装kernel-lt（lt=long-term）  
\[root@www ~\]\#  yum --enablerepo=elrepo-kernel install kernel-lt  
已加载插件：fastestmirror, refresh-packagekit, security  
Repository c6-media is listed more than once in the configuration  
设置安装进程  
Loading mirror speeds from cached hostfile  
 \* base: mirrors.aliyun.com  
 \* elrepo: hkg.mirror.rackspace.com  
 \* elrepo-kernel: hkg.mirror.rackspace.com  
 \* extras: mirrors.aliyun.com  
 \* updates: mirrors.aliyun.com  
elrepo                                                                                                                                                                  | 2.9 kB     00:00       
elrepo/primary\_db                                                                                                                                                       | 714 kB     00:00       
解决依赖关系  
\--> 执行事务检查  
\---> Package kernel-lt.x86\_64 0:4.4.215-1.el6.elrepo will be 安装  
\--> 完成依赖关系计算  
依赖关系解决  
===============================================================================================================================================================================================  
 软件包                                     架构                                    版本                                                  仓库                                            大小  
===============================================================================================================================================================================================  
正在安装:  
 kernel-lt                                  x86\_64                                  4.4.215-1.el6.elrepo                                  elrepo-kernel                                   39 M

事务概要  
===============================================================================================================================================================================================  
Install       1 Package(s)  
总下载量：39 M  
Installed size: 178 M  
确定吗？\[y/N\]：y  
下载软件包：  
kernel-lt-4.4.215-1.el6.elrepo.x86\_64.rpm                                                                                                                               |  39 MB     00:11       
运行 rpm\_check\_debug  
执行事务测试  
事务测试成功  
执行事务  
Warning: RPMDB altered outside of yum.  
  正在安装   : kernel-lt-4.4.215-1.el6.elrepo.x86\_64                                                                                                                                       1/1  
  Verifying  : kernel-lt-4.4.215-1.el6.elrepo.x86\_64                                                                                                                                       1/1  
已安装:  
  kernel-lt.x86\_64 0:4.4.215-1.el6.elrepo                                                                                                                                                        
完毕！  
\[root@www ~\]\#  
**5）、编辑grub.conf文件，修改Grub引导顺序**  
default=0  
\[root@www etc\]\# vim /etc/grub.conf  
\#default=1  
default=0  
timeout=5  
splashimage=(hd0,0)/grub/splash.xpm.gz  
hiddenmenu  
title CentOS (4.4.215-1.el6.elrepo.x86\_64)   --序号0 即 default=0  
        root (hd0,0)  
        kernel /vmlinuz-4.4.215-1.el6.elrepo.x86\_64 ro root=UUID=5d597209-262d-4db4-8850-037d0d03035f rd\_NO\_LUKS  KEYBOARDTYPE=pc KEYTABLE=us rd\_NO\_MD crashkernel=auto LANG=zh\_CN.UTF-8 rd\_NO\_LVM rd\_NO\_DM rhgb quiet  
        initrd /initramfs-4.4.215-1.el6.elrepo.x86\_64.img  
title CentOS (2.6.32-754.27.1.el6.x86\_64)  --序号1 即 default=1  
        root (hd0,0)  
        kernel /vmlinuz-2.6.32-754.27.1.el6.x86\_64 ro root=UUID=5d597209-262d-4db4-8850-037d0d03035f rd\_NO\_LUKS  KEYBOARDTYPE=pc KEYTABLE=us rd\_NO\_MD crashkernel=auto LANG=zh\_CN.UTF-8 rd\_NO\_LVM rd\_NO\_DM rhgb quiet  
        initrd /initramfs-2.6.32-754.27.1.el6.x86\_64.img  
title CentOS (2.6.32-279.el6.x86\_64)    --序号2 即 default=2  
        root (hd0,0)  
        kernel /vmlinuz-2.6.32-279.el6.x86\_64 ro root=UUID=5d597209-262d-4db4-8850-037d0d03035f rd\_NO\_LUKS  KEYBOARDTYPE=pc KEYTABLE=us rd\_NO\_MD crashkernel=auto LANG=zh\_CN.UTF-8 rd\_NO\_LVM rd\_NO\_DM rhgb quiet  
        initrd /initramfs-2.6.32-279.el6.x86\_64.img                                                                                                                                                                                            
"/etc/grub.conf" 26L, 1383C       
**6）、确认刚安装好的内核在配置中位置，然后设置default值，完成后重启**  
\[root@www etc\]\# reboot  
\[root@www etc\]\#  
\[root@www ~\]\# uname -r  
4.4.215-1.el6.elrepo.x86\_64  
\[root@www ~\]\#  
**2、安装docker**  
直接使用以下地址安装  https://get.docker.com/rpm/1.7.1/centos-6/RPMS/x86\_64/docker-engine-1.7.1-1.el6.x86\_64.rpm  
注意：源较慢，耐心等候，中途挂了多试几次则可  
\[root@www yum.repos.d\]\# yum install https://get.docker.com/rpm/1.7.1/centos-6/RPMS/x86\_64/docker-engine-1.7.1-1.el6.x86\_64.rpm  
已加载插件：fastestmirror, refresh-packagekit, security  
设置安装进程  
docker-engine-1.7.1-1.el6.x86\_64.rpm                                                                                                                                    | 4.5 MB     00:08       
诊断 /var/tmp/yum-root-SUDkRb/docker-engine-1.7.1-1.el6.x86\_64.rpm: docker-engine-1.7.1-1.el6.x86\_64  
/var/tmp/yum-root-SUDkRb/docker-engine-1.7.1-1.el6.x86\_64.rpm 将被安装  
Loading mirror speeds from cached hostfile  
解决依赖关系  
\--> 执行事务检查  
\---> Package docker-engine.x86\_64 0:1.7.1-1.el6 will be 安装  
\--> 完成依赖关系计算  
依赖关系解决  
===============================================================================================================================================================================================  
 软件包                                     架构                                版本                                      仓库                                                            大小  
===============================================================================================================================================================================================  
正在安装:  
 docker-engine                              x86\_64                              1.7.1-1.el6                               /docker-engine-1.7.1-1.el6.x86\_64                               19 M

**2）、检测并设置开机自启动**  
\[root@www yum.repos.d\]\# service docker start  
Starting cgconfig service:                                 \[确定\]  
Starting docker:                                       \[确定\]  
\[root@www yum.repos.d\]\#  
\[root@www yum.repos.d\]\# chkconfig docker on  
\[root@www yum.repos.d\]\# docker version  
Client version: 1.7.1  
Client API version: 1.19  
Go version (client): go1.4.2  
Git commit (client): 786b29d  
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  
OS/Arch (server): linux/amd64  
\[root@www yum.repos.d\]\#

**二、centos7安装docker  
1、更新内核**  
docker需要内核版本大于3.10，centos7.6同样需要更新内核  
**1）、查看当前内核版本**  
\[root@fieldyang01 ~\]\# uname -r  
3.10.0-957.el7.x86\_64  
\[root@fieldyang01 ~\]\# uname -a  
Linux fieldyang01 3.10.0-957.el7.x86\_64 \#1 SMP Thu Nov 8 23:39:32 UTC 2018 x86\_64 x86\_64 x86\_64 GNU/Linux  
\[root@fieldyang01 ~\]\# cat /etc/redhat-release  
CentOS Linux release 7.6.1810 (Core)  
\[root@fieldyang01 ~\]\#  
**2）、升级内核**  
更新yum源仓库  
\[root@fieldyang01 ~\]\# yum -y update  
启用 ELRepo 仓库  
ELRepo 仓库是基于社区的用于企业级 Linux 仓库，提供对 RedHat Enterprise (RHEL) 和 其他基于 RHEL的 Linux 发行版（CentOS、Scientific、Fedora 等）的支持。  
ELRepo 聚焦于和硬件相关的软件包，包括文件系统驱动、显卡驱动、网络驱动、声卡驱动和摄像头驱动等。  
\#导入ELRepo仓库的公共密钥  
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org  
\#安装ELRepo仓库的yum源  
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm  
\[root@fieldyang01 ~\]\# rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org  
\[root@fieldyang01 ~\]\# rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm  
Retrieving http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm  
Preparing...                          \#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\# \[100%\]  
Updating / installing...  
   1:elrepo-release-7.0-3.el7.elrepo  \#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\# \[100%\]  
\[root@fieldyang01 ~\]\#  
**3）、查看可用的系统内核包**  
如下：有4.4.215和5.5.8可用  
\[root@fieldyang01 ~\]\# yum --disablerepo="\*" --enablerepo="elrepo-kernel" list available  
Loaded plugins: fastestmirror, langpacks  
Loading mirror speeds from cached hostfile  
 \* elrepo-kernel: mirrors.tuna.tsinghua.edu.cn  
elrepo-kernel                                                                                                                                                           | 2.9 kB  00:00:00       
elrepo-kernel/primary\_db                                                                                                                                                | 1.9 MB  00:00:03       
Available Packages  
elrepo-release.noarch                                                                          7.0-4.el7.elrepo                                                                   elrepo-kernel  
kernel-lt.x86\_64                                                                               4.4.215-1.el7.elrepo                                                               elrepo-kernel  
kernel-lt-devel.x86\_64                                                                         4.4.215-1.el7.elrepo                                                               elrepo-kernel  
kernel-lt-doc.noarch                                                                           4.4.215-1.el7.elrepo                                                               elrepo-kernel  
kernel-lt-headers.x86\_64                                                                       4.4.215-1.el7.elrepo                                                               elrepo-kernel  
kernel-lt-tools.x86\_64                                                                         4.4.215-1.el7.elrepo                                                               elrepo-kernel  
kernel-lt-tools-libs.x86\_64                                                                    4.4.215-1.el7.elrepo                                                               elrepo-kernel  
kernel-lt-tools-libs-devel.x86\_64                                                              4.4.215-1.el7.elrepo                                                               elrepo-kernel  
kernel-ml.x86\_64                                                                               5.5.8-1.el7.elrepo                                                                 elrepo-kernel  
kernel-ml-devel.x86\_64                                                                         5.5.8-1.el7.elrepo                                                                 elrepo-kernel  
kernel-ml-doc.noarch                                                                           5.5.8-1.el7.elrepo                                                                 elrepo-kernel  
kernel-ml-headers.x86\_64                                                                       5.5.8-1.el7.elrepo                                                                 elrepo-kernel  
kernel-ml-tools.x86\_64                                                                         5.5.8-1.el7.elrepo                                                                 elrepo-kernel  
kernel-ml-tools-libs.x86\_64                                                                    5.5.8-1.el7.elrepo                                                                 elrepo-kernel  
kernel-ml-tools-libs-devel.x86\_64                                                              5.5.8-1.el7.elrepo                                                                 elrepo-kernel  
perf.x86\_64                                                                                    5.5.8-1.el7.elrepo                                                                 elrepo-kernel  
python-perf.x86\_64                                                                             5.5.8-1.el7.elrepo  
**4）、安装两个版本内核，需要时只需修改配置重启则可。**  
\--enablerepo 选项开启 CentOS 系统上的指定仓库。默认开启的是 elrepo，这里用 elrepo-kernel 替换。                                                                elrepo-kernel  
\[root@fieldyang01 ~\]\# yum --enablerepo=elrepo-kernel install kernel-ml  
\[root@fieldyang01 ~\]\# yum --enablerepo=elrepo-kernel install kernel-lt  
Installed:  
  kernel-lt.x86\_64 0:4.4.215-1.el7.elrepo                                                                                                                                                        
Complete!  
\[root@fieldyang01 ~\]\#  
**5)、设置 grub2**  
内核安装好后，需要设置为默认启动选项并重启后才会生效  
查看系统上的所有可用内核：  
\[root@fieldyang01 ~\]\# $ sudo awk -F\\' '$1=="menuentry " \{print i++ " : " $2\}' /etc/grub2.cfg  
bash: $: command not found...  
\[root@fieldyang01 ~\]\# awk -F\\' '$1=="menuentry " \{print i++ " : " $2\}' /etc/grub2.cfg  
0 : CentOS Linux (5.5.8-1.el7.elrepo.x86\_64) 7 (Core)  
1 : CentOS Linux (4.4.215-1.el7.elrepo.x86\_64) 7 (Core)  
2 : CentOS Linux (3.10.0-1062.12.1.el7.x86\_64) 7 (Core)  
3 : CentOS Linux (3.10.0-957.el7.x86\_64) 7 (Core)  
4 : CentOS Linux (0-rescue-f2926d3a0aa74bf187600d7e9d20d6e6) 7 (Core)  
\[root@fieldyang01 ~\]\#  
设置新的内核为grub2的默认版本  
服务器上存在5 个内核，暂时使用4.215 这个版本，可以通过 grub2-set-default 0 命令或编辑 /etc/default/grub 文件来设置  
方法1、通过 grub2-set-default 1 命令设置  
其中 1 是上面查询出来的可用内核  
\[root@fieldyang01 ~\]\# grub2-set-default 1  
方法2、编辑 /etc/default/grub 文件  
设置 GRUB\_DEFAULT=0，通过上面查询显示的编号为 0 的内核作为默认内核：  
\[root@fieldyang01 ~\]\# vim /etc/default/grub  
\[root@fieldyang01 ~\]\# cat /etc/default/grub  
GRUB\_TIMEOUT=5  
GRUB\_DISTRIBUTOR="$(sed 's, release .\*$,,g' /etc/system-release)"  
GRUB\_DEFAULT=saved  
GRUB\_DISABLE\_SUBMENU=true  
GRUB\_TERMINAL\_OUTPUT="console"  
GRUB\_CMDLINE\_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet"  
GRUB\_DISABLE\_RECOVERY="true"  
GRUB\_DEFAULT=1  
\[root@fieldyang01 ~\]\#  
生成 grub 配置文件并重启  
\[root@fieldyang01 ~\]\# grub2-mkconfig -o /boot/grub2/grub.cfg  
Generating grub configuration file ...  
Found linux image: /boot/vmlinuz-5.5.8-1.el7.elrepo.x86\_64  
Found initrd image: /boot/initramfs-5.5.8-1.el7.elrepo.x86\_64.img  
Found linux image: /boot/vmlinuz-4.4.215-1.el7.elrepo.x86\_64  
Found initrd image: /boot/initramfs-4.4.215-1.el7.elrepo.x86\_64.img  
Found linux image: /boot/vmlinuz-3.10.0-1062.12.1.el7.x86\_64  
Found initrd image: /boot/initramfs-3.10.0-1062.12.1.el7.x86\_64.img  
Found linux image: /boot/vmlinuz-3.10.0-957.el7.x86\_64  
Found initrd image: /boot/initramfs-3.10.0-957.el7.x86\_64.img  
Found linux image: /boot/vmlinuz-0-rescue-f2926d3a0aa74bf187600d7e9d20d6e6  
Found initrd image: /boot/initramfs-0-rescue-f2926d3a0aa74bf187600d7e9d20d6e6.img  
done  
**6）、重启验证**  
\[root@fieldyang01 ~\]\# reboot  
\[root@fieldyang01 ~\]\# uname -r  
4.4.215-1.el7.elrepo.x86\_64  
\[root@fieldyang01 ~\]\#  
**7）、删除旧内核（可选）**  
查看系统中全部的内核：  
\[root@fieldyang01 ~\]\# rpm -qa | grep kernel  
kernel-tools-libs-3.10.0-1062.12.1.el7.x86\_64  
kernel-ml-5.5.8-1.el7.elrepo.x86\_64  
kernel-3.10.0-1062.12.1.el7.x86\_64  
kernel-tools-3.10.0-1062.12.1.el7.x86\_64  
kernel-3.10.0-957.el7.x86\_64  
kernel-lt-4.4.215-1.el7.elrepo.x86\_64  
abrt-addon-kerneloops-2.1.11-55.el7.centos.x86\_64  
\[root@fieldyang01 ~\]\#  
yum remove 删除旧内核的 RPM 包  
$ yum remove kernel-tools-libs-3.10.0-1062.12.1.el7.x86\_64 \\  
kernel-ml-5.5.8-1.el7.elrepo.x86\_64 \\  
kernel-3.10.0-1062.12.1.el7.x86\_64 \\  
kernel-tools-3.10.0-1062.12.1.el7.x86\_64 \\  
kernel-3.10.0-957.el7.x86\_64 \\  
abrt-addon-kerneloops-2.1.11-55.el7.centos.x86\_64  
**2、安装docker  
1）、centos已自带，yum -y install docker安装**

**也可使用Docker官方提供的自动化安装脚本完成稳定版本安装：****curl -sSL https://get.docker.com|sh**   
\[root@fieldyang01 run\]\# yum -y install docker  
Loaded plugins: fastestmirror, langpacks  
Loading mirror speeds from cached hostfile  
 \* base: mirrors.aliyun.com  
 \* elrepo: mirrors.tuna.tsinghua.edu.cn  
 \* extras: mirrors.aliyun.com  
 \* updates: mirrors.huaweicloud.com  
Resolving Dependencies  
\--> Running transaction check  
\---> Package docker.x86\_64 2:1.13.1-109.gitcccb291.el7.centos will be installed  
\--> Processing Dependency: docker-common = 2:1.13.1-109.gitcccb291.el7.centos for package: 2:docker-1.13.1-109.gitcccb291.el7.centos.x86\_64  
\--> Processing Dependency: docker-client = 2:1.13.1-109.gitcccb291.el7.centos for package: 2:docker-1.13.1-109.gitcccb291.el7.centos.x86\_64  
\--> Running transaction check  
\---> Package docker-client.x86\_64 2:1.13.1-109.gitcccb291.el7.centos will be installed  
\---> Package docker-common.x86\_64 2:1.13.1-109.gitcccb291.el7.centos will be installed  
\--> Finished Dependency Resolution  
Dependencies Resolved  
===============================================================================================================================================================================================  
 Package                                     Arch                                 Version                                                           Repository                            Size  
===============================================================================================================================================================================================  
Installing:  
 docker                                      x86\_64                               2:1.13.1-109.gitcccb291.el7.centos                                extras                                18 M  
Installing for dependencies:  
 docker-client                               x86\_64                               2:1.13.1-109.gitcccb291.el7.centos                                extras                               3.9 M  
 docker-common                               x86\_64                               2:1.13.1-109.gitcccb291.el7.centos                                extras                                98 k  
Transaction Summary  
===============================================================================================================================================================================================  
Install  1 Package (+2 Dependent packages)  
Total download size: 22 M  
Installed size: 77 M  
Downloading packages:  
(1/3): docker-common-1.13.1-109.gitcccb291.el7.centos.x86\_64.rpm                                                                                                        |  98 kB  00:00:02       
(2/3): docker-client-1.13.1-109.gitcccb291.el7.centos.x86\_64.rpm                                                                                                        | 3.9 MB  00:00:04       
(3/3): docker-1.13.1-109.gitcccb291.el7.centos.x86\_64.rpm                                                                                                               |  18 MB  00:00:08       
\-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------  
Total                                                                                                                                                          2.6 MB/s |  22 MB  00:00:08       
Running transaction check  
Running transaction test  
Transaction test succeeded  
Running transaction  
  Installing : 2:docker-common-1.13.1-109.gitcccb291.el7.centos.x86\_64                                                                                                                     1/3  
  Installing : 2:docker-client-1.13.1-109.gitcccb291.el7.centos.x86\_64                                                                                                                     2/3  
  Installing : 2:docker-1.13.1-109.gitcccb291.el7.centos.x86\_64                                                                                                                            3/3  
  Verifying  : 2:docker-client-1.13.1-109.gitcccb291.el7.centos.x86\_64                                                                                                                     1/3  
  Verifying  : 2:docker-common-1.13.1-109.gitcccb291.el7.centos.x86\_64                                                                                                                     2/3  
  Verifying  : 2:docker-1.13.1-109.gitcccb291.el7.centos.x86\_64                                                                                                                            3/3  
Installed:  
  docker.x86\_64 2:1.13.1-109.gitcccb291.el7.centos                                                                                                                                               
Dependency Installed:  
  docker-client.x86\_64 2:1.13.1-109.gitcccb291.el7.centos                                        docker-common.x86\_64 2:1.13.1-109.gitcccb291.el7.centos                                         
Complete!  
**2）、使用docker --version查看安装的版本**  
\[root@fieldyang01 run\]\# docker --version  
Docker version 1.13.1, build cccb291/1.13.1  
**3）、重启并设置开机自启动**  
\[root@fieldyang01 run\]\# service docker start  
Redirecting to /bin/systemctl start docker.service  
Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.  
**4）、启动报错处理**  
笔者启动发现如上报错，键入systemctl status docker.service 具体信息如下  
\[root@fieldyang01 run\]\# systemctl status docker.service  
● docker.service - Docker Application Container Engine  
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)  
   Active: failed (Result: exit-code) since Sat 2020-03-07 04:51:57 EST; 5s ago  
     Docs: http://docs.docker.com  
  Process: 6337 ExecStart=/usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --exec-opt native.cgroupdriver=systemd --userland-proxy-path=/usr/libexec/docker/docker-proxy-current --init-path=/usr/libexec/docker/docker-init-current --seccomp-profile=/etc/docker/seccomp.json $OPTIONS $DOCKER\_STORAGE\_OPTIONS $DOCKER\_NETWORK\_OPTIONS $ADD\_REGISTRY $BLOCK\_REGISTRY $INSECURE\_REGISTRY $REGISTRIES (code=exited, status=1/FAILURE)  
 Main PID: 6337 (code=exited, status=1/FAILURE)  
Mar 07 04:51:52 fieldyang01 systemd\[1\]: Starting Docker Application Container Engine...  
Mar 07 04:51:53 fieldyang01 dockerd-current\[6337\]: time="2020-03-07T04:51:53.862981581-05:00" level=info msg="libcontainerd: new containerd process, pid: 6346"  
Mar 07 04:51:57 fieldyang01 dockerd-current\[6337\]: Error starting daemon: SELinux is not supported with the overlay2 graph driver on this kernel. Either boot into a newer kernel...bled=false)  
Mar 07 04:51:57 fieldyang01 systemd\[1\]: docker.service: main process exited, code=exited, status=1/FAILURE  
Mar 07 04:51:57 fieldyang01 systemd\[1\]: Failed to start Docker Application Container Engine.  
Mar 07 04:51:57 fieldyang01 systemd\[1\]: Unit docker.service entered failed state.  
Mar 07 04:51:57 fieldyang01 systemd\[1\]: docker.service failed.  
Hint: Some lines were ellipsized, use -l to show in full.  
如上：根据保存“Mar 07 04:51:57 fieldyang01 dockerd-current\[6337\]: Error starting daemon: SELinux is not supported with the overlay2 graph driver on this kernel. Either boot into a newer kernel...bled=false)“，提示该版本不支持selinux，修改参数屏蔽后重启即可。  
\[root@fieldyang01 run\]\# vim /etc/sysconfig/docker  
\[root@fieldyang01 run\]\# grep SELinux  /etc/sysconfig/docker  
\[root@fieldyang01 run\]\# grep -i SELinux  /etc/sysconfig/docker  
\#OPTIONS='--selinux-enabled --log-driver=journald --signature-verification=false'  
OPTIONS='--selinux-enabled=false --log-driver=journald --signature-verification=false'  
如上，设置配置中--selinux-enabled=false 重启即可  
\[root@fieldyang01 run\]\# service docker start  
Redirecting to /bin/systemctl start docker.service  
**5）、查看docker信息**  
\[root@fieldyang01 run\]\# docker info  
Containers: 0  
 Running: 0  
 Paused: 0  
 Stopped: 0  
Images: 0  
Server Version: 1.13.1  
Storage Driver: overlay2  
 Backing Filesystem: xfs  
 Supports d\_type: true  
 Native Overlay Diff: true  
Logging Driver: journald  
Cgroup Driver: systemd  
Plugins:  
 Volume: local  
 Network: bridge host macvlan null overlay  
Swarm: inactive  
Runtimes: docker-runc runc  
Default Runtime: docker-runc  
Init Binary: /usr/libexec/docker/docker-init-current  
containerd version:  (expected: aa8187dbd3b7ad67d8e5e3a15115d3eef43a7ed1)  
runc version: 66aedde759f33c190954815fb765eedc1d782dd9 (expected: 9df8b306d01f59d3a8029be411de015b7304dd8f)  
init version: fec3683b971d9c3ef73f284f176672c44b448662 (expected: 949e6facb77383876aeff8a6944dde66b3089574)  
Security Options:  
 seccomp  
  WARNING: You're not using the default seccomp profile  
  Profile: /etc/docker/seccomp.json  
Kernel Version: 4.4.215-1.el7.elrepo.x86\_64  
Operating System: CentOS Linux 7 (Core)  
OSType: linux  
Architecture: x86\_64  
Number of Docker Hooks: 3  
CPUs: 4  
Total Memory: 984.1 MiB  
Name: fieldyang01  
ID: ETLN:LM7P:XOUC:CGHI:Q3K7:UVML:S4PE:SF4M:JVQI:ZI7S:S4XF:4ZJZ  
Docker Root Dir: /var/lib/docker  
Debug Mode (client): false  
Debug Mode (server): false  
Registry: https://index.docker.io/v1/  
WARNING: bridge-nf-call-iptables is disabled  
WARNING: bridge-nf-call-ip6tables is disabled  
Experimental: false  
Insecure Registries:  
 127.0.0.0/8  
Live Restore Enabled: false  
Registries: docker.io (secure)  
\[root@fieldyang01 run\]\#