centos 7 升级 rocky linux 8

How to Upgrade CentOS 7 to Rocky Linux 8 | ITzGeek

yum update -y
reboot

Install Elevate

yum install -y http://repo.almalinux.org/elevate/elevate-release-latest-el7.noarch.rpm
yum install -y leapp-upgrade leapp-data-rocky

Perform Pre-check

leapp preupgrade

rmmod pata_acpi
echo PermitRootLogin yes | tee -a /etc/ssh/sshd_config
leapp answer --section remove_pam_pkcs11_module_check.confirm=True

升级rocky linux8

leapp upgrade
reboot