On Fri, 17 Apr 2020 at 12:37, Sreyan Chakravarty <sreyan32@xxxxxxxxx> 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.
Where am I going wrong ?
Have you looked at "man 5 systemd-sleep.conf". It describes 4 modes.
Hibernate saves enough state so the system can be restored after
power is "lost". This requires stopping the filesystems, so you
have to save the state outside the regular filesystems.
George N. White III
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