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Hibernate Ubuntu 18.04

Remove unneeded utills

apt purge pm-utils uswsusp

We need to find out device UUID on which swap is located

sudo blkid

UUID="413928f5-61de-40be-88df-3c205d3ead67 in my case

/dev/nvme0n1p1: LABEL="SYSTEM" UUID="74FA-456E" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="6a431cb8-00b1-4fca-bcae-61fb06fa0cb5"
/dev/nvme0n1p4: UUID="EE6CC4C06CC484B5" TYPE="ntfs" PARTUUID="ecbeb429-0a5f-4307-9fdb-05cd49ee6db8"
/dev/nvme0n1p5: LABEL="Windows RE Tools" UUID="BE8456C084567ABB" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="0b785c44-9132-4fc0-b154-0470ddb9746d"
/dev/sda1: UUID="413928f5-61de-40be-88df-3c205d3ead67" TYPE="ext4" PARTUUID="3ac66e6e-01"
/dev/nvme0n1: PTUUID="31d6b4bb-890f-40fc-a6df-08b2d8a0d3e8" PTTYPE="gpt"
/dev/nvme0n1p2: PARTLABEL="Microsoft reserved partition" PARTUUID="83ed35e2-3a29-45a5-8f94-453d0d62844d"
/dev/nvme0n1p3: PARTLABEL="Basic data partition" PARTUUID="2f5093da-274a-4155-8f02-98ba6317f1cc"

If you have a swapfile instead of a separate swap partition then you also need to add the extra resume_offset= parameter.

sudo filefrag -v /swapfile
you need the first number, in the first line that's under physical_offset (in this case 1427167)

Need to update the file /boot/grub/grub.cfg using the information above

Edit the file /etc/initramfs-tools/conf.d/resume

Add hibernate option in poweroff menu

After reboot hibernation will work

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