After install of F32 from USB - can't boot UEFI Windows 10

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1

So, I blindly installed F32 from USB expecting a dual boot option to automatically appear at power-up. I have Windows 10 with UEFI (I think). The only partitioning I did, all during install from USB, was reduce the size of the W10 data partition and create new a fedora partition, sda7. Now I can’t seem to boot W10. When I power on, the computer goes straight to the fedora logins screen. I would think this is an easy fix but the topics I looked at don’t seem to apply to me given

  1. My original boot partition created by W10, sda1, is not mounted
  2. I have no option in BIOS to select a boot file.
    1. After mounting sda1 to /temp/hoho I suspect the boot file is /temp/hoho/EFI/Boot/bootx64.efi
  3. I did
    %sudo dnf reinstall grub2-efi grub2-efi-modules shim
    and also
    %sudo grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
  4. The file /boot/efi/EFI/fedora/grub.cfg exists for me.
  5. % efibootmgr
    Returns
    EFI variables are not supported on this system.

I decided to post this topic when another thread said to create a new sda1 partition. I really don’t want to irreversibly damage my W10 - if I haven’t already. Any help would be greatly appreciated. I don’t mind nuking my F32 install as long as I can get my W10 back. Thanks in advance.

6

For readability;
%sudo blkid | fpaste
Uploading (1.5KiB)…
https://paste.centos.org/view/b248b662

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7

Your outputs support the hypothesis (quoted). So you need to reinstall Fedora (don’t worry about Windows, its safe in there waiting). Whatever you do, make sure you do not format sda1, sda2, sda3 and sda4. DON’T … those partitions affect Windows and how your system boots.

  1. Go to BIOS and make sure your PC boots in UEFI mode first.
  2. Insert a Fedora installation media (CD/DVD/USB) and boot in UEFI mode
  3. Choose sda drive in the Graphical Installation environment (Anaconda) – usually the first drive
  4. You may want to use blivet for configuring the partitions
  5. Delete partitions sda5, sda6, and sda7 (assuming you have not saved anything in your previous Fedora installation)
  6. Repartition as follows = sda5 (1Gb), sda6 (whatever is left)
  7. Set mount point for sda1 to /boot/efi … DO NOT FORMAT THIS PARTITION – Only set the mount point
  8. Set mount point for sda5 to /boot
  9. You can split sda6 the way you did before (LVM).
  10. Accept the partitioning scheme and confirm that the installer does not complain about any missing/required mount points.
  11. Run the installation

If everything goes well … you should see a GRUB when you reboot the system. You should be able to select Windows or Fedora there.

How did it go?

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