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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/

dani3l_5
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    HP's are not particularly dual boot friendly. Some with HP have said updating UEFI & SSD firmware & then only using UEFI to change boot order works. Most systems let you use efibootmgr to change boot order & efibootmgr is what grub uses to change boot order to make grub/Ubuntu first in boot order. – oldfred Dec 04 '20 at 22:24
  • The issue I think I have is less to do with the boot order and more to do with the actual installation because not even boot-repair run from a live USB stick can access it. – dani3l_5 Dec 05 '20 at 00:05
  • Then post link from Boot-Repair's Summary Report above in your question, so we can see details. – oldfred Dec 05 '20 at 04:02
  • I've done just that – dani3l_5 Dec 05 '20 at 10:52
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    It is trying to show it as RAID, but probably is UEFI setting for Intel RST. https://discourse.ubuntu.com/t/ubuntu-installation-on-computers-with-intel-r-rst-enabled/15347 & https://superuser.com/questions/1280141/switch-raid-to-ahci-without-reinstalling-windows-10 Also make sure Windows fast startup is off. http://askubuntu.com/questions/843153/ubuntu-16-showing-windows-10-partitions & https://askubuntu.com/questions/145902/unable-to-mount-windows-ntfs-filesystem-due-to-hibernation & https://help.ubuntu.com/community/UEFI – oldfred Dec 05 '20 at 14:36
  • Thank you very much, sir! It was indeed that RAID was being used on my computer and turning that off has let my boot up Ubuntu. I'll add the solution. – dani3l_5 Dec 05 '20 at 16:27

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Oldfred has provided an answer using the boot-repair summary. My computer was using Intel RST and RAID which meant that Ubuntu could not boot. I turned this off and Ubuntu loads just fine.

dani3l_5
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    I was having issues installing ubuntu on my lenovo ideapad yesterday and it had the same issues due to Intel RST. I just turned it off from BIOS and yeah installation went perfectly after that. – john400 Dec 05 '20 at 16:40