Christopher Juckins

Notes for upgrading CentOS7 to CentOS8 in place:

https://www.centlinux.com/2020/01/how-to-upgrade-centos-7-to-8-server.html

https://www.alessandronuccio.it/2020/10/21/upgrade-centos-7-to-centos-8/

• 'rpm -e `rpm -q kernel`' would fail, try to erase current kernel
• 'dnf –releasever=8 –allowerasing –setopt=deltarpm=false distro-sync' would also fail, trying to remove the current kernel