Software & AppsOperating SystemLinux

How To Enable Hibernate in Ubuntu 20.04

Ubuntu 7

Hibernate is a power-saving feature that allows you to save your current work and switch off your computer. When you power it back on, you can resume your work right from where you left off. This feature is not enabled by default in Ubuntu 20.04. However, you can enable it by following the steps outlined in this guide.

Quick Answer

To enable hibernate in Ubuntu 20.04, you need to install the pm-utils package, check for a swap partition or swap file, edit the GRUB configuration file, update GRUB, and test hibernation using the systemctl hibernate command.

Prerequisites

Before we begin, please ensure you have administrative access to your Ubuntu system. You will also need to have a swap partition or swap file ready to use.

Step 1: Install pm-utils

The first step is to install the pm-utils package. This package provides an assortment of power management utilities and is required to enable hibernation. Open your terminal and run the following command:

sudo apt install pm-utils

The sudo command allows you to execute the command as a superuser. apt is the package handling utility in Ubuntu, and install is the command to install a new package.

Step 2: Check Swap Partition

Hibernation requires a swap partition or a swap file. To check if you have a swap partition or swap file, run the following command:

grep swap /etc/fstab

This command will return a UUID if you have a swap partition. If it returns a swap file, unfortunately, hibernation is not possible. Copy the UUID value for the next step.

Step 3: Edit GRUB Configuration

Next, we need to edit the GRUB configuration file. GRUB is the bootloader used by Ubuntu. Open the file using a text editor of your choice. Here, we’re using nano:

sudo nano /etc/default/grub

Locate the line that starts with GRUB_CMDLINE_LINUX_DEFAULT and modify it to include the resume=UUID=<YOUR_COPIED_UUID> parameter. For example:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"

Replace XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX with the UUID you copied earlier. The resume parameter tells the system where to find the data to resume from hibernation.

Step 4: Update GRUB

After saving the file and exiting the text editor, you need to update GRUB to apply the changes. Run the following command:

sudo update-grub

Step 5: Test Hibernation

Finally, test hibernation by running the following command:

sudo systemctl hibernate

If hibernation works successfully, the system will enter hibernation mode. If it doesn’t work, it may be due to hardware compatibility issues.

Conclusion

In this guide, we covered how to enable hibernation in Ubuntu 20.04. It’s important to note that hibernation may not work on all hardware configurations, and it may require additional steps or troubleshooting. If you encounter any issues, check the official Ubuntu documentation or community forums for help.

Remember to always be careful when editing system files and only do so when you understand the changes you are making. Happy computing!

Can I enable hibernate in Ubuntu 20.04 without a swap partition or swap file?

No, hibernation requires a swap partition or swap file. If you don’t have one, hibernation is not possible.

How can I create a swap partition or swap file in Ubuntu 20.04?

To create a swap partition, you can use tools like GParted. To create a swap file, you can follow the official Ubuntu documentation or community tutorials that provide step-by-step instructions.

Can I use a different text editor instead of nano to edit the GRUB configuration file?

Yes, you can use any text editor of your choice. Just replace nano in the command with the name of the text editor you prefer.

What should I do if hibernation doesn’t work after following these steps?

If hibernation doesn’t work, it may be due to hardware compatibility issues. You can try searching for solutions in the official Ubuntu documentation or community forums.

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