Im not sure if my Lenovo Thinkpad/E590 bios has changed, but all of a sudden, I cant boot to grub menu.
Step 1 was to bring up a live version of refind boot, which finds my grub and boots and I can use but the old method of boot/grub/ windows or linux has gone without refind.
I dont want to make refind my boot manager, so welcome any advice.
I did try update-grub, but still the grub is elusive.