centos7 升级到 centos8

发表于 2022-02-03 更新于 2022-12-02 分类于 Linux

安装必要包

1	yum install yum-utils epel-release -y

1	yum install rpmconf -y

升级

1	rpmconf -a

输出空

1	package-cleanup --leaves

1	yum install dnf -y

清除

1	yum dnf -y remove yum yum-metadata-parser && rm -rf /etc/yum

wget http://mirrors.ustc.edu.cn/centos/8/BaseOS/x86_64/os/Packages/centos-gpg-keys-8-3.el8.noarch.rpm wget http://mirrors.ustc.edu.cn/centos/8/BaseOS/x86_64/os/Packages/centos-linux-release-8.5-1.2111.el8.noarch.rpm wget http://mirrors.ustc.edu.cn/centos/8/BaseOS/x86_64/os/Packages/centos-linux-repos-8-3.el8.noarch.rpm dnf install -y centos-gpg-keys-8-3.el8.noarch.rpm centos-linux-release-8.5-1.2111.el8.noarch.rpm centos-linux-repos-8-3.el8.noarch.rpm

1	dnf clean all

1	rpm -e --nodeps rpm -qa\|grep -i kernel

1	rpm -e --nodeps sysvinit-tools

1	dnf -y --releasever=8 --allowerasing --setopt=deltarpm=false distro-sync

按照需要xxx的包

1	rpm -ivh --nodeps --force http://mirrors.ustc.edu.cn/centos/8/BaseOS/x86_64/os/Packages/dracut-network-049-191.git20210920.el8.x86_64.rpm

1	rpm -ivh --nodeps --force http://mirrors.ustc.edu.cn/centos/8/AppStream/x86_64/os/Packages/flatpak-1.8.5-5.el8_5.x86_64.rpm

卸载事务检查错误的包

1	rpm -e --nodeps man-pages-zh-CN-1.5.2-4.el7

再次运行

1	dnf -y --releasever=8 --allowerasing --setopt=deltarpm=false distro-sync

1	cat /etc/redhat-release

1	dnf clean all

安装内核

1	dnf -y install kernel-core --best --allowerasing

1	dnf clean packages

1
2
3

dnf -y groupupdate "Core" "Minimal Install" --allowerasing

reboot

设置启动顺序

1	grub2-set-default 0