Comments on: Howto enable hibernate on a Linux Manjaro

By: Alex

Alex — Sat, 29 Mar 2014 10:25:49 +0000

I should add that to make the GRUB2 configuration file, one must run: # grub-mkconfig -o /boot/grub/grub.cfg

To test hibernation (with systemd) via the cli: $ systemctl hibernate

If the root partition is encrypted but the swap is not, I suspect hibernating (even once) compromises the entire encrypted disk as the keys will have been written to swap disk in plaintext, no?

By: Alex

Alex — Sat, 29 Mar 2014 10:10:38 +0000

The HOOKS above are probably correctly set in Manjaro as of 2014, even when encrypting the root partition. However, the following GRUB2 config changes may be required, where the UUID corresponds to a sufficiently large swap partition.

/etc/default/grub

#GRUB_CMDLINE_LINUX_DEFAULT=”quiet”
GRUB_CMDLINE_LINUX_DEFAULT=”resume=/dev/disk/by-uuid/12345678-c123-1234-1ed2-f123a12e1234″

To find your swap partition UUID, the following commands should be helpful:
$ swapon -s
$ free -m
$ ls -l /dev/disk/by-uuid/ | grep sda

Reference links:

https://wiki.archlinux.org/index.php/Suspend_and_Hibernate

https://wiki.archlinux.org/index.php/Power_management#Power_management_with_systemd

By: Corrector

Corrector — Wed, 18 Dec 2013 11:11:00 +0000

Thanks for the help. However, it is not complete as it is necessary to update grub accordingly and provide a resume partition.

That means, edit the appropriate line in: /etc/default/grub
GRUB_CMDLINE_LINUX=”resume=/dev/sdaOFYOURSWAPPARTITION”
or
GRUB_CMDLINE_LINUX=”resume=UUID=OFYOURSWAPPARTITION”

Afterwards, don’t forget to update grub and run:
grub-mkconfig -o /boot/grub/grub.cfg

By: safeer

safeer — Thu, 10 Oct 2013 15:50:59 +0000

useful information

great job.

sudo mkinitcpio -p “addcurrentkernelversionalongwithlinuxhere”

By: Béranger

Béranger — Sat, 21 Sep 2013 16:06:33 +0000

That would be
sudo mkinitcpio -p linux310
now.