Comment 10 for bug 1805490

See attached file with output from both commands.

On Wed, Apr 17, 2019 at 3:50 PM Mathieu Trudel-Lapierre
<email address hidden> wrote:
>
> Alright; I think I've finally made some progress on this.
>
> Turns out "Block device required" is really a red herring. It's some
> random value (15) used in efibootmgr code, for any number of causes for
> failure. We can't read anything into it.
>
> The real error in indeed "Invalid argument", and very much at the point
> where things are trying to delete the variable. It's either at deleting
> the variable itself, or updating BootOrder.
>
> Could you please run the following command, so as to give us more
> information to address this issue?
>
> sudo strace -ff efibootmgr -b 0000 -B
>
> Could you also run:
>
> ls -l /sys/firmware/efi/efivars/
>
> This will give us more information to hopefully fix this issue.
>
> It seems like you're also seeing this on a Dell XPS 13 (9343), seemingly
> with BIOS revision A15. Judging from
> https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1753518/comments/32;
> there's a BIOS A18 available from Dell that might address the issue.
> Now, I'm not absolutely certain that the new *revision* fixes the issue,
> but updating the firmware might clear things that would fix this. That's
> partly why we need the extra information (so please run the commands
> above before updating BIOS).
>
> ** Package changed: grub2-signed (Ubuntu Disco) => efibootmgr (Ubuntu
> Disco)
>
> ** Changed in: efibootmgr (Ubuntu Disco)
> Status: Triaged => Incomplete
>
> ** Summary changed:
>
> - Grub2 Failed to install "efibootmgr failed to register the boot entry: Block device required."
> + [master] Grub2 Failed to install "efibootmgr failed to register the boot entry: Block device required."
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (1801575).
> https://bugs.launchpad.net/bugs/1805490
>
> Title:
> [master] Grub2 Failed to install "efibootmgr failed to register the
> boot entry: Block device required."
>
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