Centos8 stream如何升级为Centos9 stream-文档中心-青果网络

1.输入该命令按回车键：`dnf -y install epel-release`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10223888565f2.jpeg)

2.输入该命令按回车键：`dnf -y update`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102307ee37425.jpeg)

3.输入该命令按回车键：`dnf -y install rpmconf yum-utils`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102309c709d4a.jpeg)

4.输入该命令按回车键：`rpmconf -a`，若出现提示输入Y按回车键

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102311522e4ed.jpeg)

5.输入该命令按回车键：`dnf -y remove rpmconf yum-utils epel-release`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023138b51c30.jpeg)

6.输入该命令按回车键：

rpm -e --nodeps `rpm -qa|grep centos`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023169c8fe7d.jpeg)

7.输入该命令按回车键：

rpm -ivh --nodeps --force https://mirrors.aliyun.com/centos-stream/9-stream/BaseOS/x86_64/os/Packages/centos-stream-release-9.0-12.el9.noarch.rpm，

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023184cd3cc0.jpeg)

8.输入该命令按回车键：

rpm -ivh --nodeps --force https://mirrors.aliyun.com/centos-stream/9-stream/BaseOS/x86_64/os/Packages/centos-gpg-keys-9.0-12.el9.noarch.rpm

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023212c4c0c4.jpeg)

9.输入该命令按回车键：

rpm -ivh --nodeps --force https://mirrors.aliyun.com/centos-stream/9-stream/BaseOS/x86_64/os/Packages/centos-stream-repos-9.0-12.el9.noarch.rpm，

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023236c5ff99.jpeg)

10.输入该命令按回车键：`dnf clean all`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023252582dd1.jpeg)

11.输入该命令按回车键：

dnf -y --releasever=9 --allowerasing --setopt=deltarpm=false distro-sync

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102328995573e.jpeg)

12.输入该命令按回车键：`rpm --rebuilddb`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10233206b2f7f.jpeg)

13.输入该命令按回车键：

rpm -e --nodeps `rpm -qa|grep -i kernel`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10233020d1e2d.jpeg)

14.输入该命令按回车键：`dnf -y install kernel`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102334f4e29f1.jpeg)

15.输入该命令按回车键：`dnf -y install kernel-core`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023361d4779e.jpeg)

16.输入该命令按回车键：`dnf -y install shim`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10233968ad084.jpeg)

17.输入该命令按回车键：`dnf group install minimal-environment -y`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102341f890977.jpeg)

18.输入该命令按回车键：`dnf -y install epel-release`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023434171040.jpeg)

19.输入该命令按回车键：`dnf -y install rpmconf yum-utils`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023458eb0a6c.jpeg)

20.输入该命令按回车键：`dnf -y update`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023481739d42.jpeg)

21.输入该命令按回车键：`rpmconf -a`，若出现提示输入Y按回车键

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102350f4bb4d2.jpeg)

22.输入该命令按回车键：`grub2-mkconfig -o /boot/grub2/grub.cfg`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023527c6c848.jpeg)

23.输入该命令按回车键：`grub2-install /dev/sda`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102355898db12.jpeg)

24.输入该命令按回车键：`echo "PermitRootLogin yes" >> /etc/ssh/sshd_config`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023584eedd2b.jpeg)

25.输入该命令按回车键重启后再操作连接：`reboot`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10240116698c3.jpeg)

26.输入该命令按回车键查看版本：`cat /etc/redhat-release`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102403ce49979.jpeg)

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Centos8 stream如何升级为Centos9 stream