I took an update from 188.8.131.52 to 184.108.40.206. My machine would not boot from the new kernel. I tried removing the latest kernel using: sudo apt-get purge linux-image-220.127.116.11-generic and sudo apt-get purge linux-headers-18.104.22.168-generic. It successfully remove the kernel files and "update-grub2" show two remaining kernels (22.214.171.124 and 126.96.36.199).
When I reboot the machine continues to try and boot 4.15.34. How do I really kill it? In my messing around I can only successfully boot 188.8.131.52 now. How do I get things back to normal?