On Fri, 2020-04-17 at 15:37 +0000, Sreyan Chakravarty wrote:
> > On Thu, 2020-04-16 at 17:12 -0700, Samuel Sieb wrote:
> >
> > It has to be a partition. A file can be on any kind of filesystem, so
> > how would the resume function know what to do?
> >
> > From systemd-hibernate-resume(8):
> >
> > systemd-hibernate-resume@.service initiates the resume from hibernation. It
> > is
> > instantiated with the device to resume from as the template argument.
> >
> > systemd-hibernate-resume only supports the in-kernel hibernation
> > implementation, known as
> > swsusp[1]. Internally, it works by writing the major:minor of specified
> > device node to
> > /sys/power/resume.
> >
> >
> > poc
>
> If you see the documentation about swsusp here:
> https://www.kernel.org/doc/Documentation/power/swsusp.txt
>
> It clearly states you can use a swap file.
>
> Now I am confused as to why you say a swap file won't work.
From bootparam(8):
'resume=...'
This tells the kernel the location of the suspend-to-disk data
that you want the machine to resume from after hibernation.
Usually, it is the same as your swap partition or file. Example:
resume=/dev/hda2
There is no corresponding entry for resume_offset. I don't know if that's
because Fedora doesn't support it.
poc
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