upgrad CentOS 8.5 to CentOS stream commnad
dnf update
dnf in centos-release-stream
dnf swap centos-linux-repos centos-stream-repos
dnf in centos-release-stream
dnf swap centos-linux-repos centos-stream-repos
dnf repolist
dnf distro-sync
…
Enter ‘Y’ Key!
…
Reboot! (재부팅)
systemctl reboot
Check version! (버전 확인)
cat /etc/centos-release hostnamectl