Just wanted to share my experience.
This is a rolling virtualbox machine, ISO build #0889.
- The fist step is a system full update
- Then the release upgrade from rolling to cooker:
Clean the dnf cache and refresh repository list. We’ll see ‘cooker’
The kernel package changed its name, hence I shall install the new kernel manually.
We can choose the kernel clang or the kernel gcc, my choice is kernel gcc
here attached the distro upgrade log