Hello Mark, Thank you for that patch. I will test it out when I get a chance. I fully support your efforts in this area and would like to see this added to the operating-system configuration as you have described.
Best, Nolan On Mon, Sep 2, 2019 at 11:25 PM Mark H Weaver <m...@netris.org> wrote: > Hi Nolan, > > Nolan Wright <nolan.wright.ot...@gmail.com> writes: > > > I have a desktop computer that sits in the same room where I > > sleep. The fans produce a noise that I would prefer not to hear when > > going to bed. For that reason, I wish to make use of the hibernation > > feature, in which the system state is suspended to disk as described > > here: > > > > > https://wiki.archlinux.org/index.php/Power_management/Suspend_and_hibernate > > > > The IRC user nxck, who was very helpful, after some brief > > experimentation concluded that Guix System probably does not support > > the hibernation feature. Indeed the following comment in the source > > code suggests as much: > > > > > http://git.savannah.gnu.org/cgit/guix.git/tree/gnu/services/desktop.scm#n598 > > > > Additionally I found the following message in this mailing list from > > three years ago which stated that the feature is not supported: > > > > https://lists.gnu.org/archive/html/bug-guix/2016-11/msg00067.html > > The message above links to an earlier message with my preliminary patch > to support hibernation: > > https://lists.gnu.org/archive/html/guix-devel/2016-08/msg00962.html > > I've been carrying that patch in my local branch of Guix for 3 years. > It needs a bit more work before it's ready to include in Guix, and I'm > sorry to say that I lost motivation to work on it because it seems that > almost no one cares about hibernation today. > > Anyway, I've attached below a slightly updated version of the patch that > applies cleanly to current Guix. Quoting from the message above: > > you'll also need to add a line like this to your 'operating-system' > definition. > > (kernel-arguments '("resume=/dev/sda2")) > > Where the device named is a swap partition. > > WARNING: Since this is preliminary work, I recommend that the first time > you test this, be prepared for the possibility that resume will fail. > So far I've only tested it with simple partitions, without encryption or > RAID. > > It may be that we should add a dedicated 'resume-device' field to the > 'operating-system'. Thoughts? > > Mark > > >