[Linux] CentOS8 升级

Linux] CentOS8 升级"/>

[Linux] CentOS8 升级

A CentOS8.0升级到8.5的方法

由于CentOS8已经仅仅维护Stream，8.* Linux都已经不在维护。对应仓库都清空了。不过有时候，我们依然需要安装对应小版本，比如8.5。这里摸索了一个更新方法

1. 配置最新repo

配置一个国内repo源（163或者ali）

2. 安装CentOS8.5 release

#yum install centos-linux-release-8.5

3. yum更新

#yum update -y

4. 重启

#reboot
#uname -rnv确认更新kernel

B. CentOS8.5 升级到 CentOS Stream

1. 备份repo文件,清空/etc/yum.repos.d/

2. 写入Extra仓库

cat >/etc/yum.repos.d/CentOS-Stream-Extras.repo <<'EOF'
[cs8-extras]
name=CentOS Stream $releasever - Extras
mirrorlist=/?release=8-stream&arch=$basearch&repo=extras&infra=$infra
#baseurl=/$contentdir/8-stream/extras/$basearch/os/
gpgcheck=1
enabled=1
gpgkey=
EOFcat >/etc/yum.repos.d/CentOS-Stream-Extras-common.repo <<'EOF'
[cs8-extras-common]
name=CentOS Stream $releasever - Extras common packages
mirrorlist=/?release=8-stream&arch=$basearch&repo=extras-extras-common
#baseurl=/$contentdir/8-stream/extras/$basearch/extras-common/
gpgcheck=1
enabled=1
gpgkey=
EOFecho "8-stream" > /etc/yum/vars/stream

3. 安装stream

dnf install centos-release-stream -y
dnf swap centos-{linux,stream}-repos -y

4. 更新内核

dnf update -y