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Michel Le Cocq 2020-06-22 10:30:18 +02:00
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right-fit-swap-for-laptop-hibernation-Ubuntu-20.04-full-ZFS-install.md
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# right fit swap for laptop hibernation Ubuntu 20.04 full ZFS install
## bios setup
You have to disable secure boot in bios to permit Hibernate because of *kernel lockdown prevent hibernation* see links bellow :
* [](https://unix.stackexchange.com/questions/591488/why-does-the-kernel-lockdown-prevent-hibernation)
* [](https://rephlex.de/blog/2019/12/27/how-to-hibernate-and-resume-from-swap-file-in-ubuntu-20-04-using-full-disk-encryption/)
## create swap partition to permit Hibernate
create a swap partition right sized for hibernation.
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HibernateDelaySec=7200
~~~
[](https://doc.ubuntu-fr.org/tutoriel/activer_hibernation)
Modify this two lines in /etc/systemd/logind.conf for sleep key and closing the lid actions if that's how you want it:
kernel lockdown prevent hibernation :
[](https://unix.stackexchange.com/questions/591488/why-does-the-kernel-lockdown-prevent-hibernation)
[](https://rephlex.de/blog/2019/12/27/how-to-hibernate-and-resume-from-swap-file-in-ubuntu-20-04-using-full-disk-encryption/)
~~~
HandleSuspendKey=suspend-then-hibernate
HandleLidSwitch=suspend-then-hibernate
~~~
Hiberner au bout de x secondes après une mise en veille
[](https://doc.ubuntu-fr.org/veille_et_hibernation)