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CentOS 7更新YUM源步骤

tyheist / 828人阅读

摘要:此处省略分钟更新成功程序员交流群,干货分享,加我拉你入群。,边敲代码边学习。

国内小伙伴推荐使用阿里云的源

Step1 找到需要的源

阿里巴巴开源镜像站各种源应有尽有,老域名是https://mirrors.aliyun.com/

Step2 编辑CentOS7.repo文件

进入/etc/yum.repos.d,发现我的源还是7.4.1708

[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/7.4.1708/os/x86_64/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#released updates
[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/7.4.1708/updates/x86_64/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/7.4.1708/extras/x86_64/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/7.4.1708/centosplus/x86_64/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/7.4.1708/contrib/x86_64/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

这个版本的源已经迁移到7.5.1804了,→地址,使用VIM将其替换

:%s/7.4.1708/7.5.1804/g
Step3 修复冲突报错

然后更新系统试试yum -y update

[root@liaogx ~]# yum -y update
Plugin "product-id" can"t be imported
Plugin "search-disabled-repos" can"t be imported
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * epel: mirrors.tuna.tsinghua.edu.cn
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package ModemManager.x86_64 0:1.6.0-2.el7 will be updated
......此处略......
---> Package yum-rhn-plugin.noarch 0:2.0.1-10.el7 will be installed
--> Running transaction check
---> Package libbytesize.x86_64 0:1.2-1.el7 will be installed
---> Package python2-pytoml.noarch 0:0.1.18-1.el7 will be installed
---> Package volume_key-libs.x86_64 0:0.3.9-8.el7 will be installed
--> Processing Conflict: initscripts-9.49.41-1.el7_5.1.x86_64 conflicts redhat-release < 7.5-0.11
--> Finished Dependency Resolution
Error: initscripts conflicts with redhat-release-server-7.4-18.el7.x86_64
 You could try using --skip-broken to work around the problem
** Found 2 pre-existing rpmdb problem(s), "yum check" output follows:
PackageKit-1.1.5-1.el7.centos.x86_64 has missing requires of PackageKit-backend
rhn-check-2.0.2-17.el7.noarch has missing requires of yum-rhn-plugin >= ("0", "1.6.4", "1")
[root@liaogx ~]#

如果报如下错误

Error: initscripts conflicts with redhat-release-server-7.4-18.el7.x86_64

这是更新软件包是与原版本冲突造成的,有两种解决办法

通过关键字initscritps排除冲突:yum update --exclude=kernel* --exclude=centos-release* --exclude=initscripts*

删除冲突包:rpm -e redhat-release-server-7.4-18.el7.x86_64 --nodeps

这里使用第二种方法,把冲突的包干掉

[root@liaogx ~]# rpm -e redhat-release-server-7.4-18.el7.x86_64 --nodeps
warning: file /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release: remove failed: No such file or directory
warning: file /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-legacy-rhx: remove failed: No such file or directory
warning: file /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-legacy-release: remove failed: No such file or directory
warning: file /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-legacy-former: remove failed: No such file or directory
warning: file /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-beta: remove failed: No such file or directory
[root@liaogx ~]#
Step4 更新系统

小白从入门到跑路必会,sudo yum -y update,老鸟都懂。

[root@liaogx ~]# yum -y update
......此处省略10分钟......
Complete!
[root@liaogx ~]#

更新成功 ^_^

程序员交流群,干货分享,加我拉你入群。,边敲代码边学习。

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