As of now, this little tool only works on Ubuntu. There is a lot of hard-coded paths, and it will override the Ubuntu's standard swapfile.
Eventually, I might add some more configuration options.
cargo build --release
sudo ./target/release/hibernation-control enable- Set up a swapfile of appropriate size (2 time the RAM)
- Configure GRUB to use the swapfile to resume
- Update grub and initramfs
- Configure systemd to hibernate when closing the lid when using battery power
systemd has changed the behaviour for suspend-than-hibernate in 252, but it has been
reverted in 255. So HibernateDelaySec will have different behaviour depending on
your current version.
From systemd 252 release notes:
When performing suspend-then-hibernate, the system will estimate the discharge rate and use that to set the delay until hibernation and hibernate immediately instead of suspending when running from a battery and the capacity is below 5%.
From systemd 255 release notes:
systemd-sleep 'HibernateDelaySec=' setting is changed back to pre-v252's behaviour, and a new 'SuspendEstimationSec=' setting is added to provide the new initial value for the new automated battery estimation functionality. If 'HibernateDelaySec=' is set to any value, the automated estimate (and thus the automated hibernation on low battery to avoid data loss) functionality will be disabled.
-
disablecommand - EFI configuration
- Release binary on github