hibernate and Secure Boot, redux

[Chris Murphy]

On Fedora 28 Workstation with 4.17.0-0.rc7.git1.1.fc29.x86_64, on a
UEFI Secure Boot enabled system, I'm seeing this in the journal
following a low power situation.

Jun 02 15:11:33 f28h.local systemd[1]: Starting Hybrid Suspend+Hibernate...

After configuring a resume=UUID= line for the bootloader, hibernate
works (both enter and exit). This was previously inhibited on Secure
Boot enabled systems. Is this expected?

I'm just doing a double take.

Thanks,

[Justin Forbes]

On Sat, Jun 2, 2018 at 10:15 PM, Chris Murphy  wrote:
> On Fedora 28 Workstation with 4.17.0-0.rc7.git1.1.fc29.x86_64, on a
> UEFI Secure Boot enabled system, I'm seeing this in the journal
> following a low power situation.
>
> Jun 02 15:11:33 f28h.local systemd[1]: Starting Hybrid Suspend+Hibernate...
>
> After configuring a resume=UUID= line for the bootloader, hibernate
> works (both enter and exit). This was previously inhibited on Secure
> Boot enabled systems. Is this expected?
>
> I'm just doing a double take.

It was expected, not particularly desired, but to prove a point with
upstream.  Using the framework that was proposed during the 4.17 merge
window.  This behavior will not be what users see on stable releases
once they are rebased.

Thanks,
Justin