Unable to install GRUB in /dev/nvme0n1 when installing Ubuntu 22.04 Dual Boot HP

[mbrady06]

I ended up turning off Bitlocker and this is the current boot repair report: https://paste.ubuntu.com/p/54s7pJKxX3/
I think I would like to turn Bitlocker back on if possible though

[yancek]

Beginning at line 5 of boot repair, it indicates you tried to do a Legacy install of the Ubuntu Grub and failed as you are using a GPT drive (see line 104) which requires a 2MB unformatted partition on which to put the core.img file. If you insist on doing a Legacy install of Ubuntu, that is needed. The problem is that if yuo do that you will not be able to boot windows from the same drive with Grub.

If you look at lines 10-23 of boot repair you will see the entire contents of the EFI partition which include only manufacturer (HP) and windows files. This is why you don't see Ubuntu in the BIOS boot options, because you didn't install properly. Booting and installing Ubuntu in UEFI mode would have been the simplest solution. You have Ubuntu on partition 5 already so just install Grub EFI.

I don't know BitLocker or what options you have with that.

[tea for one]

I ended up turning off Bitlocker and this is the current boot repair report: https://paste.ubuntu.com/p/54s7pJKxX3/
I think I would like to turn Bitlocker back on if possible though

As indicated by yancek, run the recommended boot-repair (details line 237 etc.)

You had, at least, three problems at the beginning:-
Bitlocker active
Intel Optane obstruction
Installation of Ubuntu in Legacy mode

Leave Bitlocker disabled for the moment until you are happy that you can dual boot seamlessly.

If the boot-repair fails, run another boot-repair report.

[mbrady06]

I was able to run Boot repair and get GRUB installed. Thank you for the help

[oldfred]

HP requires you to go into system settings & change boot order there.
Every other brand works with efibootmgr which grub uses to change boot order.

May be sub-menu of UEFI boot settings.
Screenshot of HP's UEFI settings change of boot order
https://ubuntuforums.org/showthread....2490924&page=2
https://www.phoronix.com/news/HP-BIOSCFG-For-Linux-6.6

HP Spectre x360 13-4102dx 24.04 no issues install
https://ubuntuforums.org/showthread.php?t=2499399

Lots of threads on x360
HP Spectre x360 Disable Optane (should use gpt to boot installer in UEFI mode
https://askubuntu.com/questions/1204...-optane-volume &
https://askubuntu.com/questions/1345...o-install-grub
HP Pavillion X360 13-a220nw
https://ubuntuforums.org/showthread.php?t=2359510 &
https://bbs.archlinux.org/viewtopic....58477#p1858477
HP Envy x360 with Core i5-10210U Intel UHD Graphics Hardware Acceleration
https://ubuntuforums.org/showthread.php?t=2432438
[Guide] Install Ubuntu 18.04 on HP Spectre x360 13"
https://ubuntuforums.org/showthread.php?t=2414086 &
https://ubuntuforums.org/showthread.php?t=2422113
HP Spectre x360 15t Optane issue
https://ubuntuforums.org/showthread.php?t=2474790 &
https://chanon.info/install-ubuntu-2...-hp-envy-x360/