LUKS

This covers setting up hibernation on CachyOS with GNOME, GRUB, btrfs, full-disk encryption (LUKS unlocked at the GRUB prompt), and zram already in use. Verified on a Lenovo ThinkBook with GNOME 49. Written for CachyOS, but most of this should apply to other Arch-based distributions. A few caveats: CachyOS ships with a systemd-based initrd and zram enabled by default — if your distribution uses a busybox-based initrd (i.e. base and udev hooks rather than systemd), you will need a resume hook in mkinitcpio instead of relying on systemd’s native resume handling. The efivarfs sleep hook in Step 5 is firmware-specific and not distribution-specific. Distributions that use GRUB with LUKS and btrfs in the same way as described here should be able to follow this guide without modification. ...

(This guide applies to any Debian/Ubuntu based distribution) For some reason (complexity perhaps) it is not possible to configure full-disk encryption and LVM from the graphical installer in the desktop edition. It is possible to select full-disk encryption but this only creates one filesystem (root). I want to use LVM to allow me to have more than one filesystem without having to enter more than one password during boot-up. It is not impossible to install Ubuntu desktop (or Linux Mint as in this guide) with encryption and LVM but it does require a little more work. ...