[qubes-users] Qubes 4.2 error: Failed to remove old efi boot entry.

In my fresh install of 4.2 this error appeared.

> The following error occurred while installing the boot loader. The system will not be bootable.
> Would you like to ignore this and continue with installation?
> Failed to remove old efi boot entry. This is most likely a kernel or firmware bug.

I ignored this and I was able to boot 4.2 with rEFInd so I have no problem. But it would be nice to understand why this happens and how to fix it.

You might have a setting in your BIOS that prevents boot entries from
being removed.

I once had the opposite error where the installer failed to create the
entry. Adding an entry manually with efibootmgr didn't work initially
either, I had to clear the CMOS before I could add an entry. It also
turned out that the efibootmgr command in this section of the docs is

The .efi file path was different and the "placeholder /mapbs /noexitboot"
part wasn't needed in my case.

Luckily I had another working Qubes machine where I could dump a working
efibootmgr entry and configure the machine accordingly:

Boot0001* Qubes OS HD(1,GPT,REDACTED,REDACTED,REDACTED)/File(\EFI\qubes\grubx64.efi)

I haven't had time to submit a pull request to update the docs.

Neil du Preez: