Re: How do I create an entry in the boot menu for an UEFI system?

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On 5/13/21 4:40 PM, Lester Petrie wrote:
On 5/13/2021 4:17 PM, George N. White III wrote:
On Thu, 13 May 2021 at 16:56, Lester Petrie <lmpetrie@xxxxxxxxxxxxx <mailto:lmpetrie@xxxxxxxxxxxxx>> wrote:

    Hi all,

    The subject says what I want to do. The why is as follows. About a
    year
    and a half ago I bought a new machine with a 2 Tb SSD and a 2 Tb hard
    drive. It came with Windows on it, which I wanted to keep, so I
    found a
    Windows program that let me shrink the Windows partitions on both the
    SSD and the HD to 1 Tb, and tried to install Fedora on the free
    1Tb SSD.
    But at the time the installer would not recognize the SSD, so I
    ended up
    installing on the HD, with a new EFI partition there. I was then
    able to
    select between Windows and Fedora from the boot menu. About the
    time F33
    came out, I learned I needed to disable Raid in the Bios, and then I
    installed F33 on the free 1Tb SSD. This added Fedora to the
    Windows EFI
    partition, and replaced Fedora in the boot menu with the new
    version, so
    I was still able to select either Windows or Fedora 33 when I booted.


Did you also disable Windows "fastboot"?

I am able to get to the boot menu the same as always, so I am pretty sure Windows "fastboot" is not the problem.


    And grub conveniently found my old HD installation and included it in
    the grub menu. Then something happened about a week ago, and the
    Fedora
    entry in the boot menu reverted to the HD entry (which is F31). I
    can do
    a rescue boot and chroot to F33, and then run efibootmgr, but I can't
    figure out how to create a legitimate, bootable entry for F33. The
    files
    all seem to still be in the right place, and I can create an entry in
    the menu, but it is not a valid entry. Any help will be greatly
    appreciated.


How do define "not valid"? Do you get an error, do you end up in Windows, or ...?  Did the problem occur after using Windows?  Have you checked the
BIOS settings?

Not valid means that if I select the entry I made from the boot menu, I get an error message saying it is not valid. I can still select Windows, or the HD version of Fedora successfully.
Hi Lester

There is a utility Supergrub2 2.04s1 that boots from a USB that finds all the bootables on the system for a workaround.

From the f31 you can look at the /boot of the f33 and see if the grub.cfg and grubenv entries in /boot/efi/EFI/fedora have the correct uuid for the f33. Also the entries in /boot/loader/entries for the kernels
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