I tried to upgrade from F39 to F40, and I got these errors:
Before you continue ensure that your system is fully upgraded by running "dnf --refresh upgrade". Do you want to continue [y/N]: Fedora 40 - x86_64 3.7 kB/s | 3.0 kB 00:00
Fedora 40 openh264 (From Cisco) - x86_64 1.5 kB/s | 989 B 00:00
Fedora 40 - x86_64 - Updates 218 kB/s | 60 kB 00:00
google-chrome 12 kB/s | 1.3 kB 00:00
RPM Fusion for Fedora 40 - Free 11 kB/s | 12 kB 00:01
RPM Fusion for Fedora 40 - Free - Updates 9.6 kB/s | 11 kB 00:01
RPM Fusion for Fedora 40 - Nonfree 14 kB/s | 17 kB 00:01
RPM Fusion for Fedora 40 - Nonfree - Updates 3.9 kB/s | 3.2 kB 00:00
No match for group package "scim-sayura"
No match for group package "samyak-devanagari-fonts"
No match for group package "layla-diwani-fonts"
[... MANY MORE OF THESE ...]
No match for group package "lohit-malayalam-fonts"
No match for group package "paktype-ajrak-fonts"
No match for group package "lohit-nepali-fonts"
No match for group package "baekmuk-ttf-hline-fonts"
Error:
Problem: The operation would result in removing the following protected packages: shim-ia32, shim-x64
The font errors are not important, but the priotected shim packages are; aborting the upgrade.
I then solved the problem by temporarily moved the file /etc/dnf/protected.d/shim.conf to shim.conf.saved. I then did the upgrade, and after that I moved back the shim.conf.saved to shim.conf, just to leave the things right.
Hope this helps!