Jun 27 2017
May 31 2017
I have same issue. On ubuntu everything works.
May 6 2017
I added right /boot partition (EFI system) in /etc/fstab and everything works.
Apr 19 2017
OK you're booted in Solus right now under a GRUB system, so:sudo clr-boot-manager update
You'll retain the new kernel and current kernel, however it'll now build the /vmlinuz and /initrd.img links.
Then you should be able to update-grub from the other distro.
It looks like you might not be booting into the latest kernel (where only the latest kernel will have the nvidia driver module). What's does this showuname -a; eopkg info linux-lts | head -n 2
If you boot from a non Solus controlled bootloader, it will need to be updated