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November 10th, 2025 13:19
Boot menu
Hello.
I accidentally ran the command efibootmgr -o 0009 under Arch Linux on my DELL Vostro 3750, which removed all boot entries from the BIOS boot manager except for:
“Boot0009* GRUB HD(1,GPT,ffa17c76-68d2-4754-837e-93cf138a9cb3,0x800,0x200000)/\EFI\GRUB\grubx64.efi dp: 04 01 2a 00 01 00 00 00 00 08 00 00 00 00 00 00 00 00 20 00 00 00 00 00 76 7c a1 ff d2 68 54 47 83 7e 93 cf 13 8a 9c b3 02 02 / 04 04 30 00 5c 00 45 00 46 00 49 00 5c 00 47 00 52 00 52 00 42 00 5c 00 67 00 72 00 75 00 62 00 78 00 36 00 34 00 2e 00 65 00 66 00 69 00 00 00 / 7f ff 04 00”
Only the system entries “Setup” and “Diagnostic” remain.
Restoring BIOS defaults from the setup menu fails with the error:
“Failed to save storage: BOOT_MENU_BOOT_ITEMS. Status: 0xF.”
I tried to trigger the BIOS recovery process (using Ctrl+Esc, End, and power adapter plug-in methods), but couldn’t bring up the recovery menu.
The remaining “GRUB” boot entry doesn’t load the system.
How can I restore the boot menu or recover the BIOS?
anne_droid
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1.2K Posts
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November 10th, 2025 14:22
Hi
Well the inter-web reports ............
This command can indeed be reversed or changed by running
efibootmgragain with a different boot order. For example, if you want to revert it to a previous boot order or set a new one, you simply provide the desired order of boot entries, such asefibootmgr -o 0001,0002,0009or any other sequence of existing boot entry codes on your system. You can list all current boot entries and their identifiers by runningefibootmgrwithout any arguments to see which entries are available and their order.Whereas I was going to suggest the absolutely excellent rEFInd Boot Manger.
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The command
efibootmgr -o 0009on your Arch Linux system running on a Dell Vostro 3750 is used to set the UEFI boot order to boot using the specific boot entry with the identifier "0009" first. The-ooption lets you specify the boot order explicitly by providing a comma-separated list of boot entry identifiers, so when you runefibootmgr -o 0009, you are telling the UEFI firmware to prioritise the boot entry "0009" as the first option to boot from on the next startup.