Ubuntu hibernate when using swap file
Ubuntu hibernate when using swap file. I found this documentation on how to enable hibernation with an encrypted swap. But not only do I loose the advantage of workload spread with this, it also seems probable that hibernation would follow the same priorities as swapping, and go for the used swap location instead of for the free one. Swap is where your RAM is saved on disk when you hibernate. e. 04 on my laptop, with an encrypted home folder + swap partition. 04 will create a swap file during installation as long as there are no swap partitions on the computer. Create the file. On a Linux system, there is a particular space in your hard disk called the swap area. Swap file is located at /swapfile a4. TL;DR. . Still there is no need to worry about wearing of your SSD from extensive swapping. : /swapfile none swap sw 0 0. If you want to try hibernation, create a swap partition first. If not used for hibernation you can alway add a swap partition or swap on file later: How do I add a swap partition after system installation? Adding a new swap file. When using a swap file, the system must locate the swap file's header, but in order to do this the filesystem that contains the swap file must be mounted, and a journaled filesystem - e. However, I couldn't get it to resume so instead switched to using uswsusp (userspace software suspend). I can't make my Ubuntu 18. Add a line for the swapfile, if one does not exist: swapfile none swap sw 0 0. On file systems other than Btrfs, the value of resume_offset= can be obtained by running filefrag -v swap_file. See Ubuntu SwapFAQ. Before I had this encrypted setup, I used to have my hibernation enabled. (/hibernate. You probably do not have enough. By default is not possible to get Ubuntu to hibernate using a swap file, so I tried this tutorial, but it is specific to grub1, and Ubuntu now uses grub2. Sep 24, 2021 · If you want to use a /swapfile to hibernate instead of the swap partition: The top answer works well, but you don't have to use a partition, you can also use a default /swapfile. 04 and one caught my eye which was moving from the typical swap partition model to a new swap file model for new installs. 04). # # Use 'blkid' to print the universally unique identifier for a # device; this Jun 5, 2020 · Even Live and Persistent bootable USB devices will use all the swap partition(s) they find. After fiddling with some other things, i somehow changed something, that broke it again. A swap file entry exists in /etc/fstab e. Jul 27, 2022 · Create the Swap File: We will create a 1 GiB file (/mnt/1GiB. 04 desktop install too as they both use swap file by default i. 04 after hibernate? Resume: After installing with swap partition instead of a swap file I hibernated without issues until the 2nd hibernation and everything broke again. 10. I wonder if I still could get hibernation to work, without having both of them. 04 with a swap file. I removed my swap file using: sudo swapoff /swapfile But I have a line on /etc/fstab with my old swapfile. Aug 24, 2021 · Increase it if you want to use a larger swap file. Enabling the New Swap Space on Ubuntu. Ubuntu and the circle of friends logo are trade marks of Canonical Limited and are used Mar 16, 2021 · Solved by using fix from this question: How to resume Ubuntu 18. 04 on a machine with 16G RAM and 1T SSD. If you need hibernation, a swap of the size of RAM becomes necessary for Ubuntu. Aug 31, 2023 · Seems youre using a swap partition, not a swap file. I run Ubuntu 12. You should see: none freeze mem disk . However, hibernate and Ubuntu do not work on all hardware. These can have the same priority, or they can have a different priority. Also I use a swap file (I do not know whether using a swap file affects my possibility to hibernate). Oct 20, 2020 · Check the swap that is in use: sudo swapon -s. I've read that I can install uswsusp, but uswsusp is deprecated in Ubuntu 22. Aug 24, 2021 · This article explains how to enable hibernation using systemd on recent Ubuntu releases when using a swap file (which is default for Ubuntu at least since version 18. g. Jul 8, 2018 · UPD: Now I have found an even better solution - use swap file. ubuntu release 18. Jun 16, 2011 · Therefore, your swap partition should be at least as big as your RAM size. However, if you change your set-up and start using 2 swap files instead of just one swap partition, you can fool the system to swap to HDD instead of SSD just prior to Aug 11, 2009 · So, check in the numbered order -- the first scheme has notes for hibernation using swap-files. I used to have a swap partition of 20G and know how to hibernate with swap partition. If you use a swap partition, just UUID should be sufficient, offset is only needed for a swap file. 04 hibernate (I tried use both swap file and swap partion, nothing works) 2 Ubuntu 18. This question here shows a rather hacky way (untested by me): Dec 19, 2019 · The swap partition in theory remains free for hibernation, as long as the swap file is large enough to handle all swapping. May 25, 2024 · Creating a New Swap File to Enable Hibernate; Ensuring Swap is Enabled on Startup; Finding the Filesystem UUID and the Physical Offset Number of the Swapfile; Configuring GRUB to Resume Ubuntu from Hibernate; Enabling Hibernate in Initramfs; Affordable VPS Hosting With Dracula Servers; Adding the Hibernate Option in the System Tray Power Off This article explains how to enable hibernation using systemd on Ubuntu when using a swap file (which is the default for Ubuntu, at least since version 18. No swap partition is used; only a swap file a3. After increasing the swap file size, set the swap file’s permissions to be Feb 7, 2016 · Problem: I wanted to hibernate my computer but I couldn't without a swap file or swap partition. swap. 04 LTS), so it is likely that these instructions will also work with other versions of Ubuntu. If you use a different swap file name and path, make sure to use that instead of /swapfile in all the instructions that follow below. img) In the corner of the screen, it says system snapshot, compression ratio, etc. Oct 28, 2019 · However I found out I required swap in order to use hibernate on a laptop, so I created a swap partition and hibernate has been working fine. I had some trouble at first but then it worked perfectly. 04? Now after reading this guy's answer as he told I should have swap partition not swap file. I am rather sure that I set up hibernation correctly, and that the swap file I am using is being recognized and written to when I click hibernate. Therefore, your swap partition should be at least as big as your RAM size. You need to run the gksudo gedit /etc/fstab command and add a line like this: /dev/sdXY swap swap defaults 0 0. Oct 14, 2021 · Yes, you can use multiple swapspaces, but that as such does not contribute to enhanced throughput, only to increased swap space. Create the swap file: Nov 1, 2023 · Replace the 4 in `4*1024` with the amount of RAM you have in gigabytes. How to enable hibernate option in Ubuntu 20. ** How can I achieve this? Oct 1, 2013 · Then a swap on SSD will be somewhat faster than a swap on a hard drive. "The advantages of a swap file are many, but it is problematic for using the default "swsusp" hibernation method for powerless sleep. Hibernation and suspend, BUT, about 1 or 2 hibernation cycles in, and all of a sudden the kernel isn’t able to address the NVME on reboot. I tried already creating a SWAP-file and hibernate with it, but that did not work. We need to set the swap file permissions to 600 to prevent other users from being able to read potentially sensitive information from the swap file. Recently I found the machine was going into standby rather than hibernate, and upon investigation it turned out there was not enough space in the swap partition for hibernation to take place. I have setup hibernation on it via this guide: How to Enable Hibernate Function in Ubuntu 24. Enable hibernate, enlarge swap. Install dependencies: sudo apt install pm-utils hibernate uswsusp Although it is possible to hibernate to swap file and it supposedly works with systemd hibernate by setting kernel parameters. There is nothing in the basic kernel documentation for Sleep States or Power Interface which says that the swap has to be in a single file. Oct 24, 2020 · I looked at a website explaining swap and one which has hibernation into swap file described. Format the file as swap: Aug 9, 2018 · I was reading the new changes with Ubuntu 17. Of course, change the XY to the correct settings for the system. 04 system following this guide (using Swap-File). Once again with help from the Arch wiki page and some additional tinkering, I managed to get hibernation to work on 17. Deactivate any existing swap file and delete it. Otherwise, it recommends: Oct 31, 2015 · You have a swap partition and that's where the hibernation goes. " Now "problematic" does not mean impossible but in the context of your original question I'd have to say that no, it is not supported, and is not available out of the box. sudo nano -Bw /etc/fstab. Swap file will try to write quite a bunch of data so it will slow down the computer and kill my USB faster. 04? I assume you have a swap partition ready to use. Then run: $ grep swap /etc/fstab . Although it also can work on a swap file, the swap file must be contiguous and the offsets indicating the physical location of the file must be specified, so setup is more complex. So I think it is unreasonable to preserve a swap only for hibernation and I deleted this partition and decided to hibernate with hibernation file. (This is another reason to unplug the internal HDD/SSD when installing). Use a swap file rather than swap partition for improved performance. Do not assume it will work on other versions or distributions. Is there a way around the SWAP file and get hibernation running? I have configured a new Ubuntu installation in a Notebook to use a swap file, instead of using a swap partition. 04 LTS | UbuntuHandbook It works. My understanding is you will need to create a swap partition for hibernate. Copy the UUID value. Swap files avoid fragmentation slowdowns. Once the swap file has been added to fstab the computer will not Mar 5, 2017 · Without having swap partition how to hibernate using only "SWAP FILE" 10. Feb 2, 2024 · A few precise terminal commands set up Ubuntu to hibernate when chosen from the UI power option or when entering the ‘systemctl hibernate’ command. # /etc/fstab: static file system information. There are some guides Feb 15, 2019 · Somehow I could install Ubuntu 18. Jan 25, 2018 · Size of RAM + 2 GB if RAM size is more than 2 GB i. First of all, you should increase the size of the /swapfile at least to the size of your RAM. Add "# " before the UUID of the swap partition(s): # UUID=XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX none swap sw 0 0. Using Hibernate Jun 10, 2018 · Failed to increase swap space. Set the swap file Aug 1, 2020 · First, you need to make sure you have a large enough swap file. For example, multiply this number by 5 if you want to use a 5GB swap file (so use 5242880 as the count= value for a 5GB swap file). org Mar 3, 2024 · Ubuntu installation does not make a swap partition any more. 04; I use Lubuntu 22. It has also been tested to work to set up encrypted swap without hibernate on Linux Mint 20 (based on Ubuntu 20. Check the size of your swap either through System Monitor -> Resources or by running sudo swapon --show. This is what man swapon says about how priority influences use: Therefore, your swap partition should be at least as big as your RAM size. Calling systemctl hibernate shutdowns system completely. Does anybody know how to do this? Nov 7, 2020 · How can I enable hibernate on fresh installed system if it's possible. I can't use stanby 'cause battery is dead. Without having swap partition how to hibernate using only "SWAP FILE" 0. I verified this on fresh Ubuntu 18. swap bs=1024 count=1048576. Sep 7, 2017 · I have checked the past hibernate questions and nothing related to my problem. Out of curiosity, I'd like to know why you want to hibernate when linuxes like Ubuntu can shutdown and start so fast. Hibernate is very slow to resume. My RAM is 8 Gb and my swap May 4, 2023 · If you plan on using hibernate (which appears to be the case), you'll need a swap file (or partition) at least as large as your RAM (from what you're showing, 48 GB). Here are the steps I used on Ubuntu 17. It cannot use a swap file on an active file system. Dec 9, 2020 · This procedure was tested on Ubuntu 12. Now unfortunately I have swap file. In short, it enables preserving active sessions on power off to improve workflow for Ubuntu desktop users. The hibernation implementation currently used in Ubuntu, swsusp, needs a swap or suspend partition. This required an additional boot parameter, resume_offset=n where n is the first number under physical_offset in the output of sudo filefrag -v /swapfile: I have configured a new Ubuntu installation in a Notebook to use a swap file, instead of using a swap partition. Disk speed impacts hibernate resume time. See full list on ubuntuhandbook. 4. Jan 1, 2021 · I am using ubuntu 20. If swap partition(s) found: sudo swapoff -a. Indeed, there is some indication that the hibernation data is written to available swap space on the computer: May 7, 2018 · After that I tried use swap file instead of swap partition to hibernate by creating a 5 Gb swap file (I heard that I only need at least half the size of my RAM) and then add the parameter resume_offset to the GRUB_CMDLINE_LINUX_DEFAULT the same way as I did with resume. Does anybody know how to do this? When using a swap file for hibernation, the block device on which the file system lies should be specified in resume=, and additionally the physical offset of swap file must be specified through resume_offset= kernel parameter. swap) to use as swap: sudo dd if=/dev/zero of=/mnt/1GiB. I have read some questions specifically this one. Then: $ cat /sys/power/state . ** I Need To Inform My Ubuntu That I'm Using A Swap Partition. they do not allocate swap partition by default. yeah, sorry for the confusion - you can no longer hibernate with a swap file. . 04 & 22. Oct 3, 2020 · Learn to set up hibernate on Ubuntu 20. Details on swap partitions, resume, polkit, and xsecurelock. Finally, reboot or run sudo swapon /dev/sdXY to use the swap without rebooting. How to Enable Hibernate on Ubuntu 22. 04 using systemd. 5GB of swap for 3GB of RAM; Ubuntu has an entirely different perspective on the swap size as it takes hibernation into consideration. I do not know why Ubuntu developers include this button. 04. 04 (fully updated). 04/17. 04 there should be no disadvantages of using a swap file instead of partition? Is that right, or are there any scenarios where it would be better to have a swap May 6, 2016 · Update: Hibernation using a swap file on 17. This time I got a pre log error: "PM: image not found" And a post hibernation log error: May 27, 2024 · It is real buggy. 04 LTS: Step-by-Step Step 1: Check the Current Swap and Memory Size. Jul 5, 2023 · FYI: the swapfile will use the same space as the swap partition (for a given swap size) -- you dont save any disk space by switching from swap-partition to swap-file. 1. I created a partition using Gparted. But I found the partition never used in normal time. So while doing some research on the difference I came to the conclusion, that for Ubuntu 20. (If you have a swap file you cannot hibernate) Install pm-utils and hibernate: $ sudo apt install pm-utils hibernate . 0 I have configured a new Ubuntu installation in a Notebook to use a swap file, instead of using a swap partition. You will not be able to find the offset of an non-existing file. Now what if I wanted to hibernate WITH the swap file? Jun 17, 2019 · Hibernation requires swap space on a separate partition. Enable Ubuntu Hibernate. Ensure your swap is on an SSD or fast disk rather than a slow HDD. Jun 24, 2021 · How to enable the hibernate option in Ubuntu 20. You'll need to boot from a LiveCD and use gparted to resize partitions. When I try doing a hibernate test with sudo systemctl hibernate the system do Dec 27, 2019 · a2. Ubuntu is not Windows with a separate Hibernation file that takes up additional space on your hard disk. sudo chmod 600 /mnt/1GiB. 10 desktop install and suppose it to work with fresh 18. Question: How can I make a swap file for hibernate only? Aug 14, 2023 · Once you have those prerequisites, you can proceed with the steps below to enable hibernation on your Ubuntu machine. Your swap size should be somewhat larger than you RAM size. – richbl Commented May 4, 2023 at 17:36 Dec 1, 2011 · The question is asking why Ubuntu needs swap to hibernate, Without having swap partition how to hibernate using only "SWAP FILE" 0. 10 without creating any SWAP partition nor I seem to have a SWAP file. Jul 11, 2024 · I recently activated hibernation on my ubuntu 24. Ubuntu 20. Mar 9, 2019 · In short, no you have to use a single file or partition for hibernation. ext3, ext4, and basically all modern filesystems used by Linux - cannot be mounted during Jul 10, 2024 · I recently activated hibernation on my ubuntu 24. The swap-file is not dynamically resized, it is allocated at full size. This depends on the swaping needs of the system. Does anybody know how to do this? Oct 17, 2010 · As said by @Gilles, a swap file can't be used for hibernation. 2. You can set up multiple swap spaces (partitions or files). Jun 27, 2019 · I have a swap file in my file system /swapfile with 2GB, but I want to use a partition. I have a 1 GB swap file and 16GB memory. # sudo swapoff /swapfile # sudo rm /swapfile. Dec 1, 2011 · Now you should be back in your main Ubuntu system. Are there benefits for using this as opposed to a swap partition, maybe related to or in terms of performance, space saving, more in line with today's hardware like SSD and NVMe Aug 2, 2021 · Now after switching to Ubuntu I found there is no hibernate feature. The whole system is toast. 04: hibernate with 2 swap partitions, or 2 swap files, or 1 of each, which do I resume from? Jun 25, 2021 · Note : File-based swap still works with hibernation, but it’s not really stable and can suffer from disk fragmentation. sxub mffpod ofsb oxqs xkrqpls cxp rgxi xphkt wvuwfuzp xadfvbz