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Context in steps:

  1. Machine with Windows 11.
  2. Shrink Windows partition in 120 GB for Ubuntu 22.04.
  3. Boot to installation with USB.
  4. Make 3 partitions: | (1) 18 GB for root (/) | (2) 90 GB for /home | (3) rest for swap
  5. Continue with installation (install updates and 3rd party drivers was selected).
  6. Installation finishes and says "restart to use Ubuntu".
  7. "Remove USB drive and press enter" message with Ubuntu logo.
  8. PC reboots directly into Windows.
  9. Tried rebooting again and got directly into Windows.
  10. Windows Disk Management shows Ubuntu partition as "Not assigned"

I followed this steps in a VM in Windows and after installation the VM rebooted to GRUB. The only different thing is that I did not use the option "install 3rd party drivers".

PC specs:

  • NVidia 1660 GTX
  • HP Omen 15 (Notebook)
  • Intel Core i7 9750H
  • 16 GB RAM DDR4
  • NVMe SSD
10
  • If you use the EFI menu at power-up (some function key that gives you the boot choices of devices or oses), do you get an ubuntu choice? If you choose it, do you get grub? From grub can you boot ubntu and windows? Might just be an efi boot selection preference to put the ubuntu choice first.
    – ubfan1
    Apr 28, 2022 at 4:14
  • Is the EFI menu in the BIOS menus or is it accesed with a different function key? Apr 28, 2022 at 14:03
  • It's a different function key, although the ordering is also found under the BIOIS/UEFI settings, and should be changed there or maybe with efibootmgr from Ubuntu.
    – ubfan1
    Apr 28, 2022 at 15:52
  • HP typically needs UEFI update, and if SSD, SSD firmware update. And you have to change UEFI boot order in UEFI settings (not UEFI boot menu). HP Envy - use UEFI to change boot order askubuntu.com/questions/1332255/… HP - escape + F9 for UEFI boot menu, F10 for UEFI/bios setup For whatever reason HPs do not support boot order changes with efibootmgr. all other systems seem to work ok.
    – oldfred
    Apr 28, 2022 at 19:46
  • @ubfan1 and oldfred. I updated BIOS and SSD firmware. After that I went to EFI menu with F9 and got a menu if 4 options: Microsoft, Boot, HP and ubuntu. Selected ubuntu and got "No Valid File Available in the Selected File System". Apr 28, 2022 at 22:35

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