0

I am attempting to dual boot Ubuntu and Windows 10. I want to use Windows Boot Manager, and not GRUB. I already have Windows 10 booting in UEFI mode. I have 32 gigabytes of unallocated space to install Ubuntu on, but after I finish the installation, I don't want the boot order to be changed. I will then add Ubuntu to Windows Boot Manager by running bcdedit /set "{bootmgr}" path \EFI\ubuntu\grubx64.efi. How can I make sure that the boot order isn't changed while installing Ubuntu?

Improve this question
8
  • Can't you just change it back after installation?
    – grawity_u1686
    Commented Sep 24, 2021 at 8:08
  • Do you mean letting Ubuntu become the default OS, going into the BIOS and changing the default OS back to Windows Boot Manager, then adding Ubuntu to Windows Boot Manager? I think that would work, but it would be better if the first two steps could be skipped. Does the "Something else" partition option when installing Ubuntu set Ubuntu as the default OS? (sorry if that question shouldn't be in the comments)
    – name
    Commented Sep 24, 2021 at 9:05
  • You don't need to add Ubuntu to the Windows Boot Manager, the UEFI boot menu is enough and Ubuntu will just add itself to that menu. UEFI works differently from GRUB. Ensure you're using an EFI installation media for Ubuntu.
    – harrymc
    Commented Sep 24, 2021 at 9:13
  • Is the UEFI boot menu the one that the "bcdedit" command changes? If so, then every time I have said Windows Boot Manager I have meant the UEFI boot menu. Does it automatically add Ubuntu to the UEFI menu if you choose the "Something else" partition option?
    – name
    Commented Sep 24, 2021 at 9:35
  • @name: I mean letting Ubuntu become the default OS, then using efibootmgr --bootorder 000x from within Ubuntu to make the Windows Boot Manager go first. (Though note that your plan to run Ubuntu from Windows Boot Manager is likely to fail in EFI; some say it works, but in my experience Bootmgr refuses to launch GRUB.)
    – grawity_u1686
    Commented Sep 24, 2021 at 9:42

0

Reset to default

You must log in to answer this question.

Browse other questions tagged .