I got a new laptop the other day and I've been trying to dual boot it with Ubuntu 20.04.1 alongside the preinstalled Windows 10.
I made a live USB stick using etcher and shrunk my C drive to make space for the Ubuntu installation.
I booted into the live USB stick and did a default "Install Ubuntu alongside Windows" installation. It seems to go completely smoothly and I reboot.
This is where the trouble begins. The computer reboots straight into Windows, completely missing GRUB. This seems ok because I can just change the boot order. I do so and again it boots straight into Windows. I even tried running GRUB by selecting Ubuntu in the boot options and this gave me "The selected boot device failed."
I've tried reflashing my USB stick with a new download of the Ubuntu ISO file and then reinstalling Ubuntu but I've been getting the same result.
I even tried using boot-repair from the USB stick and this doesn't even show the "recommended repair" button.
Here are the details: Machine: HP Pavilion Boot mode: UEFI (both Windows and Ubuntu) Installing: Ubuntu 20.04.1
SSD partitions: /dev/nvme0n1p1 EFI System /dev/nvme0n1p2 Microsoft Reserved /dev/nvme0n1p3 Windows /dev/nvme0n1p4 Windows recovery environment /dev/nvme0n1p5 Linux filesystem
Edit: Here's the pastebin for the boot-repair summary report: https://paste.ubuntu.com/p/Kzm8vhjsc4/