Efibootmgr question

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1

efibootmgr output:

└─$ efibootmgr 
BootCurrent: 0000
Timeout: 0 seconds
BootOrder: 0005,0001,0000,0002,9999,0003
Boot0000* Fedora	HD(1,GPT,a3257078-2333-437c-b7ba-0a0a86012e07,0x800,0x12c000)/\EFI\fedora\shimx64.efi
Boot0001* Smokeless UMAF	HD(1,GPT,a3257078-2333-437c-b7ba-0a0a86012e07,0x800,0x12c000)/\EFI\UMAF\Bootx64.efi
Boot0002* Internal Hard Disk	PciRoot(0x0)/Pci(0x2,0x4)/Pci(0x0,0x0)/NVMe(0x1,8C-E3-8E-10-01-3F-66-3B)/HD(1,GPT,a3257078-2333-437c-b7ba-0a0a86012e07,0x800,0x12c000)0000424f
Boot0003* UEFI KBG50ZNV256G KIOXIA 33BC917JEMNK 1	PciRoot(0x0)/Pci(0x2,0x4)/Pci(0x0,0x0)/NVMe(0x1,8C-E3-8E-10-01-3F-66-3B){auto_created_boot_option}
Boot0004* Fedora Linux 44 (KDE Plasma Desktop Edit 7.1.4-200.fc44.x86_64 (UKI)	HD(1,GPT,a3257078-2333-437c-b7ba-0a0a86012e07,0x800,0x12c000)/\EFI\fedora\shimx64.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
Boot0005* Smokeless UMAF	HD(1,GPT,a3257078-2333-437c-b7ba-0a0a86012e07,0x800,0x12c000)/\EFI\UMAF\UiApp.efi
Boot9999* USB Drive (UEFI)	PciRoot(0x0)/Pci(0x1d,0x0)/USB(16,0)0000424f

Which Fedora EFI do I pick?
Boot0000* or Boot0004 to be first In the BootOrder?

2

Boot0000 is the regular Fedora boot, which you are currently using. Boot0004 is the result of installing kernel-uki-virt, and this entry will boot the uki kernel without using grub2. The extra date on the Boot0004 entry are utf16le encoded text reading

\EFI\Linux\66824eac346d4657959c5b3f2784d2f0-7.1.4-200.fc44.x86_64.efi root=UUID=b9c28fde-1fcb-4928-aed1-cc09124aa13f ro rootflags=subvol=root rhgb quiet pcie_aspm=off

Also notice that kernel-uki-virt will install some big files in the ESP (/boot/efi) which may in the future run out of space in /boot/efi.

3

I did efibootmgr -o and set 0000 as the first thing to boot, and I do removed the older kernel versions whenever I get a notification saying “nvme0n1p2” is running out of space.

4

Here Is the now new BootOrder:

sudo efibootmgr -o 0000,0002,0003,0004,0005,9999 
[sudo] password for gitxpresso: 
BootCurrent: 0000
Timeout: 0 seconds
BootOrder: 0000,0002,0003,0004,0005,9999
Boot0000* Fedora	HD(1,GPT,a3257078-2333-437c-b7ba-0a0a86012e07,0x800,0x12c000)/\EFI\fedora\shimx64.efi
Boot0001* Smokeless UMAF	HD(1,GPT,a3257078-2333-437c-b7ba-0a0a86012e07,0x800,0x12c000)/\EFI\UMAF\Bootx64.efi
Boot0002* Internal Hard Disk	PciRoot(0x0)/Pci(0x2,0x4)/Pci(0x0,0x0)/NVMe(0x1,8C-E3-8E-10-01-3F-66-3B)/HD(1,GPT,a3257078-2333-437c-b7ba-0a0a86012e07,0x800,0x12c000)0000424f
Boot0003* UEFI KBG50ZNV256G KIOXIA 33BC917JEMNK 1	PciRoot(0x0)/Pci(0x2,0x4)/Pci(0x0,0x0)/NVMe(0x1,8C-E3-8E-10-01-3F-66-3B){auto_created_boot_option}
Boot0004* Fedora Linux 44 (KDE Plasma Desktop Edit 7.1.4-200.fc44.x86_64 (UKI)	HD(1,GPT,a3257078-2333-437c-b7ba-0a0a86012e07,0x800,0x12c000)/\EFI\fedora\shimx64.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
Boot0005* Smokeless UMAF	HD(1,GPT,a3257078-2333-437c-b7ba-0a0a86012e07,0x800,0x12c000)/\EFI\UMAF\UiApp.efi
Boot9999* USB Drive (UEFI)	PciRoot(0x0)/Pci(0x1d,0x0)/USB(16,0)0000424f
┌──(gitxpresso㉿fedora44)-[~]
└─$
5

If you don’t intend to use the kernel-uki-virt kernel, you can remove this package.

6

What is the purpose of kernel-uki-virt?
Also did I set the BootOrder correctly?

7

Read UAPI.5 Unified Kernel Images (UKI).

The kernel-uki-virt provides a efi loadable file which is a combination of the linux kernel and the corresponding initramfs and kernel parameters.

If it works, it is correct.
What is “Smokeless UMAF”?

8

Smokeless UMAF Is for accessing the Advanced menu In BIOS on Commercial non-game grade HP products. HP disables the Advanced Menu in the Bios In non-gamer grade HP products.

Smokeless UMAF repo:
“GitHub - DavidS95/Smokeless_UMAF · GitHub”