I'm running Fedora 26,
rpm -qa kernel outputs
kernel-4.13.5-200.fc26.x86_64. And that's the one I want.
I had 3 kernels showing in grub, that one, and 2 newer ones, Wifi wasn't working when booting from the other two so I excluded kernel updates from dnf, and I removed the newer kernels
sudo dnf remove kernel-4.x.
All went smoothly, however when I restart, I still can see them in grub and I can boot from them and the wifi won't work if I pick them.
Here I am booting from the newest kernel that I removed.
Here's my grub
What went wrong?