Re: enabling hibernate on a new F35 installation

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On Wed Mar02'22 05:46:28PM, Chris Murphy wrote:
> From: Chris Murphy <lists@xxxxxxxxxxxxxxxxx>
> Date: Wed, 2 Mar 2022 17:46:28 -0700
> To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx>
> Reply-To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx>
> Subject: Re: enabling hibernate on a new F35 installation
>
> On Wed, Mar 2, 2022 at 4:02 PM Samuel Sieb <samuel@xxxxxxxx> wrote:
> >
> > On 3/2/22 13:56, Ranjan Maitra wrote:
> > > My approach to enabling hibernate on Fedora since F20 has been to create a swap partition and then do the following:
> > >
> > > sudo vi /etc/default/grub
> > >
> > > add --> resume=UUID="****" <-- to the line GRUB_CMDLINE_LINUX=
> > >
> > > where the uuid is obtained using blkid, and then for efi-based systems do:
> > >
> > > sudo bash -x grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
> > >
> > > and then use:
> > >
> > > systemctl hibernate
> > >
> > > However, this approach no longer works for me. It goes down all right, but comes back into a newly booted system.
> > >
> > > Reading up, it appears that things changed in F34, but I have been caught napping since I have been upgrading from previous versions for a while (I guess this was sort of grandfathered in).
> > >
> > > I tried a few things, but what do I do to get hibernate going on a new (clean) F35 installation.
> >
> > I just tried this out in a VM.  I did an install of F35 with a swap
> > partition and it setup everything for hibernating including the kernel
> > command line parameter.  "systemctl hibernate" does the full hibernating
> > process, but resuming doesn't work.  This seems like a rather
> > unfortunate bug.  Why set everything up so that you can hibernate, but
> > not resume?
> >
> > The fix is to run "dracut -a resume -f".  This will update the initramfs
> > to include the bits that let resume work.  In order for this to continue
> > working with kernel updates, you need to add a dracut config file with
> > the module.
>
> Sounds like a dracut bug to me. It should see the resume parameter on
> the kernel command line and just add the resume dracut module to the
> initramfs without having to request it explicitly.
>

How do I do this for my case?

Many thanks and best wishes,
Ranjan
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