Step2 Edit the CentOS7.repo file
Enter
/etc/yum.repos.d, I found that my source is still
7.4.1708<pre class="brush:php;toolbar:false">[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</pre>. This version of the source has been migrated to 7.5.1804 , → address, use VIM to replace it
:%s/7.4.1708/7.7.1908/g
Step3 Fix the conflict errorThen try to update the system
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 ~]#
If the error is reported The following errorError: initscripts conflicts with redhat-release-server-7.4-18.el7.x86_64
This is caused by the conflict between the updated software package and the original version. There are two solutions.
Exclude conflicts through the keyword initscritps:yum update --exclude=kernel* --exclude=centos-release* --exclude=initscripts*
- Delete conflicting packages:
rpm -e redhat-release-server-7.4-18.el7.x86_64 --nodeps - ##The second method is used here to remove conflicting packages.
<pre class="brush:php;toolbar:false">[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 ~]#</pre>Step4 Update system
sudo yum -y update
, even veterans understand it.