I wanted to have my Thinkpad x220 running Linux Mint 22.1 „Xia” to hibernate into a LVM/LUKS partition to save more battery power then just doing a „suspend”. Unfortunately, with Xia being based off Ubuntu 24.04 LTS, the procedure is not straight forward. But I got it working.

Get the name of your swap partition by grepping the /etc/fstab:

$ grep swap /etc/fstab
/dev/mapper/vgmint-swap_1 none            swap    sw              0       0

Modify the /etc/default/grub file, so that the „GRUB_CMDLINE_LINUX_DEFAULT” has a „resume” entry pointing to the swap partition:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=/dev/mapper/vgmint-swap_1"

and regenerate grub:

$ sudo update-grub2

Reboot and then try to engage hibernate:

$ sudo systemctl hibernate                                 

Once, that works, we need to include „hibernate” into the power menus of Xia. This is done in newer Ubuntu and therefore Linux Mint versions via a policy rule:

cat << __UND_AUS__ > /etc/polkit-1/rules.d/10-enable-hibernate.rules
polkit.addRule(function(action, subject) {
    if (action.id == "org.freedesktop.login1.hibernate" ||
        action.id == "org.freedesktop.login1.hibernate-multiple-sessions" ||
        action.id == "org.freedesktop.upower.hibernate" ||
        action.id == "org.freedesktop.login1.handle-hibernate-key" ||
        action.id == "org.freedesktop.login1.hibernate-ignore-inhibit")
    {
        return polkit.Result.YES;
    }
});
__UND_AUS__

And presto, everything works as expected.

Sources:

• Enable Hibernation with LUKS on LVM and extras. - Linux Mint Forums
• Mint 22 enable hibernation in power and shutdown menu - Linux Mint Forums
• How to Enable Hibernate Function in Ubuntu 24.04 & 22.04 LTS | UbuntuHandbook

Tagged as: hibernation, it, linux, mint, suspend, yakshaving | Author: Martin Leyrer
[Samstag, 20250705, 14:39 | permanent link | 0 Kommentar(e)