CentOS即将停服,而且老版本的CentOS容易缺少各种依赖库,解决起来还比较麻烦,直接将CentOS升级为RockyLinux,演示所使用的环境为腾讯云轻量服务器,若你的服务器为生产环境请先备份数据再进行操作!

登陆到服务器,依次执行以下指令

dnf update
rm -rf /etc/yum.repos.d/*
touch /etc/yum.repos.d/centos.repo
touch /etc/yum.repos.d/centos-addons.repo

然后将以下内容分别复制进刚才touch生成的文件中,你可以选择用vim也可以直接本地写好然后SFTP上传,目的是使用清华大学的镜像源,来源:查看链接
centos.repo

[baseos]
name=CentOS Stream $releasever - BaseOS
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/BaseOS/$basearch/os
# metalink=https://mirrors.centos.org/metalink?repo=centos-baseos-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
countme=1
enabled=1

[baseos-debuginfo]
name=CentOS Stream $releasever - BaseOS - Debug
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/BaseOS/$basearch/debug/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-baseos-debug-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[baseos-source]
name=CentOS Stream $releasever - BaseOS - Source
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/BaseOS/source/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-baseos-source-$stream&arch=source&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[appstream]
name=CentOS Stream $releasever - AppStream
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/AppStream/$basearch/os
# metalink=https://mirrors.centos.org/metalink?repo=centos-appstream-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
countme=1
enabled=1

[appstream-debuginfo]
name=CentOS Stream $releasever - AppStream - Debug
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/AppStream/$basearch/debug/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-appstream-debug-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[appstream-source]
name=CentOS Stream $releasever - AppStream - Source
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/AppStream/source/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-appstream-source-$stream&arch=source&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[crb]
name=CentOS Stream $releasever - CRB
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/CRB/$basearch/os
# metalink=https://mirrors.centos.org/metalink?repo=centos-crb-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
countme=1
enabled=1

[crb-debuginfo]
name=CentOS Stream $releasever - CRB - Debug
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/CRB/$basearch/debug/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-crb-debug-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[crb-source]
name=CentOS Stream $releasever - CRB - Source
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/CRB/source/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-crb-source-$stream&arch=source&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

centos-addons.repo

[highavailability]
name=CentOS Stream $releasever - HighAvailability
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/HighAvailability/$basearch/os
# metalink=https://mirrors.centos.org/metalink?repo=centos-highavailability-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
countme=1
enabled=0

[highavailability-debuginfo]
name=CentOS Stream $releasever - HighAvailability - Debug
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/HighAvailability/$basearch/debug/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-highavailability-debug-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[highavailability-source]
name=CentOS Stream $releasever - HighAvailability - Source
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/HighAvailability/source/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-highavailability-source-$stream&arch=source&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[nfv]
name=CentOS Stream $releasever - NFV
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/NFV/$basearch/os
# metalink=https://mirrors.centos.org/metalink?repo=centos-nfv-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
countme=1
enabled=0

[nfv-debuginfo]
name=CentOS Stream $releasever - NFV - Debug
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/NFV/$basearch/debug/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-nfv-debug-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[nfv-source]
name=CentOS Stream $releasever - NFV - Source
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/NFV/source/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-nfv-source-$stream&arch=source&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[rt]
name=CentOS Stream $releasever - RT
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/RT/$basearch/os
# metalink=https://mirrors.centos.org/metalink?repo=centos-rt-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
countme=1
enabled=0

[rt-debuginfo]
name=CentOS Stream $releasever - RT - Debug
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/RT/$basearch/debug/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-rt-debug-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[rt-source]
name=CentOS Stream $releasever - RT - Source
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/RT/source/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-rt-source-$stream&arch=source&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[resilientstorage]
name=CentOS Stream $releasever - ResilientStorage
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/ResilientStorage/$basearch/os
# metalink=https://mirrors.centos.org/metalink?repo=centos-resilientstorage-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
countme=1
enabled=0

[resilientstorage-debuginfo]
name=CentOS Stream $releasever - ResilientStorage - Debug
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/ResilientStorage/$basearch/debug/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-resilientstorage-debug-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[resilientstorage-source]
name=CentOS Stream $releasever - ResilientStorage - Source
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/$releasever-stream/ResilientStorage/source/tree/
# metalink=https://mirrors.centos.org/metalink?repo=centos-resilientstorage-source-$stream&arch=source&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[extras-common]
name=CentOS Stream $releasever - Extras packages
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/SIGs/$releasever-stream/extras/$basearch/extras-common
# metalink=https://mirrors.centos.org/metalink?repo=centos-extras-sig-extras-common-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Extras-SHA512
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
countme=1
enabled=1

[extras-common-source]
name=CentOS Stream $releasever - Extras packages - Source
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/SIGs/$releasever-stream/extras/source/extras-common
# metalink=https://mirrors.centos.org/metalink?repo=centos-extras-sig-extras-common-source-$stream&arch=source&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Extras-SHA512
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

然后清理和重构缓存

dnf clean all
dnf makecache

确保完成以上步骤后开始下载升级脚本,一般系统自带curl,我们直接用curl下载

# 若没有curl则执行
dnf install curl

# 保险起见返回root目录
cd

# 大陆服务器使用(将下载源改为阿里的升级脚本)
curl -o 2rocky.sh -L https://raw.githubusercontent.com/TheTNB/byecentos/main/migrate2rocky9.sh

# 非大陆服务器使用(RockyLinux官方的升级脚本)
curl -o 2rocky.sh -L https://raw.githubusercontent.com/rocky-linux/rocky-tools/main/migrate2rocky/migrate2rocky9.sh

# 如果你的服务器连GitHub都连不上,那只能使用终结技:本地挂魔法把脚本下载好然后SFTP上传
# 给予运行权限并运行升级脚本
chmod +x 2rocky.sh
./2rocky.sh -r

# 等待脚本自动执行结束后执行重启服务器
reboot

# 重启完毕后,若输出NAME="Rocky Linux",则代表成功升级
cat /etc/os-release