在VMWare得CentOS虚拟机中 虚拟机名字:CentOS 7 64位 安装教程参考尚硅谷Springcloud教程资料实用篇Day3
1.循环报错
已加载插件:fastestmirror, langpacks
/var/run/yum.pid 已被锁定,PID 为 3239 的另一个程序正在运行。
Another app is currently holding the yum lock; waiting for it to exit...
另一个应用程序是:PackageKit
内存: 28 M RSS (1.4 GB VSZ)
已启动: Mon Apr 25 10:36:15 2022 - 00:10之前
状态 :睡眠中,进程ID:3239
Another app is currently holding the yum lock; waiting for it to exit...
另一个应用程序是:PackageKit
内存: 28 M RSS (1.4 GB VSZ)
已启动: Mon Apr 25 10:36:15 2022 - 00:12之前
状态 :睡眠中,进程ID:3239
Another app is currently holding the yum lock; waiting for it to exit...
另一个应用程序是:PackageKit
内存: 28 M RSS (1.4 GB VSZ)
已启动: Mon Apr 25 10:36:15 2022 - 00:14之前
状态 :睡眠中,进程ID:3239
Another app is currently holding the yum lock; waiting for it to exit...
另一个应用程序是:PackageKit
内存: 28 M RSS (1.4 GB VSZ)
已启动: Mon Apr 25 10:36:15 2022 - 00:16之前
状态 :睡眠中,进程ID:3239
原因: /var/run/yum.pid被锁定 解决方法: 先输入ctrl+C停止运行,然后输入命令rm -f /var/run/yum.pid
2.启动docker前先关闭防火墙
# 关闭
systemctl stop firewalld
# 禁止开机启动防火墙
systemctl disable firewalld
[root@node01 ~]# systemctl stop firewalld
[root@node01 ~]# systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
[root@node01 ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
Active: inactive (dead) since 一 2022-04-25 10:47:10 CST; 27s ago
Docs: man:firewalld(1)
Main PID: 875 (code=exited, status=0/SUCCESS)
4月 25 10:34:09 node01 systemd[1]: Starting firewalld - dynamic firewall daemon...
4月 25 10:34:15 node01 systemd[1]: Started firewalld - dynamic firewall daemon.
4月 25 10:47:08 node01 systemd[1]: Stopping firewalld - dynamic firewall daemon...
4月 25 10:47:10 node01 systemd[1]: Stopped firewalld - dynamic firewall daemon.
3.启动和确认状态
[root@node01 ~]# systemctl start docker
[root@node01 ~]# systemctl status docker
查看版本:docker -v
4.docker打包和拉取镜像命令
命令: 下载nginx镜像:[root@node01 ~]# docker pull nginx 查看镜像信息:[root@node01 ~]# docker images
[root@node01 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 605c77e624dd 3 months ago 141MB
打包镜像到磁盘中:[root@node01 ~]# docker save -o nginx.tar nginx:latest 删除镜像:[root@node01 ~]# docker rmi nginx:latest 拉取镜像:[root@node01 ~]# docker load -i nginx.tar
|