A quick post on fixing
error: environment block too small
I updated my Linux Mint 19.2 which included an updated kernel and this error started occurring at boot before the grub menu. You have to “hit any key to continue” but boot will continue. Very annoying. Removing some of the old kernels didn’t work. The solutions is relatively simple:
sudo rm /boot/grub/grubenv
sudo grub-editenv /boot/grub/grubenv create
This apparently relates to the size of the UEFI partition – or lack thereof. I first came across the issue when trying out System76’s Pop!_OS. I dual boot with Windows 10 (go ARMA Exile mod!) and the UEFI partition was too small. After a whole bunch of, err… farting around, I finally got Pop!_OS to install. Very nice OS but not quite to my taste. Try it out, though, for yourself. It might be your’s!