I had to add the 'dev' packages to the 'main' and 'nosystemd' for the antix repo because the udev wouldn't work with the 4.8 kernels. Maybe that is the reason for the UUID problem.
The gnu kernel omits some modules in the typical 'free for most humans' non-free firmware packages. I avoid the gnu kernel and add the missing firmware modules to make sure my hardware works correctly.
The bootloader in the UEFI System Partition needs to be updated for every kernel and that isn't automatic the way the Legacy mode works at least on my setups. The Grub will fail unless updated.
There should be two bootloaders already installed if there are two dists installed and each Grub should have an option for both dists so at least one might work now. I can use the F8 key during boot to see the bootloader choices. If not you can run update-grub and something similar to the following grub-install command to search for the other distribution and maybe get the stubborn dist to boot unless the udev is the problem. There shouldn't be a problem if the old kernel is still available in the Grub menu. Be sure there is a unique bootloader-id for each distribution or they will problably overwrite each other.
Code: Select all
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=antix