Ubuntu hibernate without swap partition. 04? EVERY system needs a swapfile or swap partition.
- Ubuntu hibernate without swap partition The Next screen shows sda1 partition for Windows Xp and free space, Now we are going to install Ubuntu 11. – DrizzleX. Just create a large empty file, run mkswap on it, then add the swap. As far as I was able to find, there was no way to encrypt the partition but leave a swap partition, so I don't You can’t hibernate without active swap on Linux, and in particular, whatever device or file you want to use for hibernation has to be enabled for swap when you hibernate. Check the swap that is in use: sudo swapon -s If swap partition(s) are found: sudo swapoff -a sudo nano -Bw /etc/fstab Add # before the UUID of the swap partition(s): # UUID=XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX none swap sw 0 0 If you want to use a /swapfile to hibernate instead of the swap partition:. If Hibernation is important to you, have more swap space then ram + swap overflow. 04? EVERY system needs a swapfile or swap partition. You could delete extended I would also try removing (unmounting), formatting and readding (as swap) the linux-hibernate partition using gparted. Make sure you are backing up your important data while doing that. To be explicitly clear, hibernation now works with a swapfile, without having to change to swap partition, but there still seems to be another problem related to powering off that is probably what is afflicting at least hibernation and shutdown, if not suspend as well. and can't enable hibernate as discuss in following thred. Hibernate to a swap partition without using it as actual swap space. The top answer works well, but you don't have to use a partition, you can also use a default /swapfile. First Increase swap partition: Changing Swap size on encrypted LVM? (kubuntu 20. Swap: From partition to file, now get "no matching swap device is available" 2. After edit grub with config as step above, do update grub. #/bin/bash # Ekimia. The first LTS release to use a swap file by default is Ubuntu 18. NB: The swap priority change fixed the resume, suspend always worked but resume would fail in initrd to pick up the image on the swapfile. 04 so we need to create / partition and Swap. Install dependencies: sudo apt install pm-utils hibernate uswsusp Find your UUID and swap offset: CentOS has a different recommendation for the swap partition size. If you're on a low-RAM system, you'll probably need I have this configuration on my disk: with a whole partition encrypted. Sizing the Swap File. Enable Hibernation without password. Looks like they changed something concerning hibernation on the kernel 6. When the computer is turned on from a previous hibernation, the encrypted swap partition is unlocked, and the system resumes from there. Try booting on a Live CD or Live USB stick. First of all, you should increase the size of the /swapfile at least to the size of your RAM. Type in the command: gksudo gedit /etc/fstab There where it is wriiten UUID for swap, replace the one with the one you copied. You This guide assumes you already have a swap partition set up that you can hibernate to. Hibernate without swap partition. I assumed the working boots used the partition for the resume image IMHO, either the swapfile allows the kernel to further reduce the image size (ex swap out application memory) or systemd supported swapfiles all along and a recent bug I've been trying to enable hibernation functionality to my installation of Ubuntu 24. 04 by adding resume=UUID=UUID_OF_MY_SWAP_PARTITION in the line GRUB_CMDLINE_LINUX_DEFAULT of my or sleep key or inactivity to do a classic suspend, and any of these classic suspends, whether plugged in or not, to hibernate after 60 minutes. freedesktop. Read on. I can't use stanby 'cause battery is dead. Hibernate Example without IDE Suspend still works, but I need hibernate. Commented Aug 18 at 18:28 If that fails, begin troubleshooting: in the hibernate state (HTD or ACPI S4) the machine state is written to disk so that no power is needed to preserve it. Create swap as a file is pretty easy. My understanding is you will need to create a swap partition for hibernate. Hibernation (suspend-to-disk) The hibernation feature (suspend-to-disk) writes out the contents of RAM to the swap partition before turning off the machine. If I have this configuration on my disk: with a whole partition encrypted. Enabling hibernate in Ubuntu 22. You will have to re-add the partition to this list to have it Accomplish a manual administration about the swap size without a partition being involved and to avoid harm the SSD lifespan So I want to know if is a recommendable apply the swap file approach for these PC/Laptops with either 4GB and 8GB of RAM - currently they have HDD but some of them would be upgraded to SSD when themselves passed/gone away When resume from a successful hibernate started failing, after changing the swap partition. I will see whether that works. On servers best to MAX out RAM and not use any Swap, no hibernation so minimal or no swap, since very large RAM on servers not practical to have 1. 04 on my old HP G7000 Laptop. The swap partition is also used during hibernation. 10 by just updating /etc/default/grub with: GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash resume=UUID=<uuid of my swap partition” then “systemctl hibernate” works as expected. If Hibernation is important to you, have more swap space than ram + swap overflow. It’s also easier to set up a new swap file from scratch or extend your swap on different volumes (adding a second swap file, a third one, and so on). Add your new swap partition to /etc/fstab and delete (or comment out) the old swap file As far as I know this is not needed, you should be able to hibernate without an extra partition because linux should be able to use a file, too. Could not work with 2GiB of RAM, and I am following this to enable hibernation in my ubuntu 20. Hibernation on my Ubuntu 18. com Tue Apr 29 10:02:02 UTC 2014 In Ubuntu 13. Sensitive data could be available for a long time (since I have good results on my Ubuntu 17. Some prefer UUIDs because even if the assignment of device names changes, the The swap partition is protected because I have enabled full disk encryption (standard luks and lvm layout). – user68186. swappiness. Even if you don't, it is recommended, because a separate swap partition provides at least equal and often better performance than a swap file inside another file system. 10). 9% of the time system is on it has enough memory for everything. It has also been tested to work to set up encrypted swap without hibernate on Linux Mint 20 (based on Ubuntu 20. 44. Do I really need such big partition for occasional hibernation? Then I came to the point where I have to decide if I want to use a swap partition or a swap file. "/swap" is a location of your swap file. Delete Swap Partition. Leaving my desktop freely available to anybody. In this application, you will be able to change the size of the partitions, including the swap one. I am already aware of the solution presented here; however, the necessity of utilizing a 2nd user-defined LUKs password is not an ideal solution for me. This answer is for enabling hibernate with an encrypted swap partition. However, hibernate and Ubuntu do not work on all hardware. If you need If you want to use a /swapfile to hibernate instead of the swap partition:. I have a swap file in my file system /swapfile with 2GB, but I want to use a partition. I’ve been trying to suspend it, but it's not quite good. Click the hibernate option will perform the hibernate operation but will fail during Curious if anyone has successfully enabled hibernate on 23. For more information see this question: Do we still need swap partitions on desktop? However, you can get around the 4 partition limit by creating an Yes; all releases of Lubuntu have allowed the use of swap. Create a new partition of type swap in the empty/unpartitioned space on your disk. Ensure your swap is on an SSD or fast disk rather than a slow HDD. hibernate ResultActive = yes # NEW entry since Ubuntu 18: [Re-enable hibernate by default in logind] Identity = unix-user:* Action = org. Lubuntu 20. 04 & 20. Later versions of Ubuntu default to a swapfile when doing a clean install. these commands dosen't work. The only things stopping it from resuming is the piece of code you found - the FAQ is incorrect claiming that swsusp won't work with swap files. For new installations of Ubuntu 17. Now, I've often read that one should make sure that Ubuntu uses swap as little as possible, especially avoiding hibernation, to extend SSD life. As mentioned in the same above linked github issue (Failed to hibernate system via logind: Not enough swap space for hibernation · Issue #15354 · systemd/systemd · GitHub), there isn’t a wakeup. Recommended maximum swap size is 8GB cause of diminishing returns. Right-click on linux swap and click on "Information". 04 without a problem but suddenly it stopped working correctly. I've tried several guides I found on the internet. I have increased the swap partition since originally it is only a little bit larger than my RAM. I checked using Gparted Partition Editor then for /dev/sda7 the file system becomes unknown. I want to disable this behavior and use the swap for hibernating New versions of Ubuntu do not normally need /boot partition nor swap partition as it uses a swap file. No permanent physical storage = no hibernation. As I would like to use hibernation while having only to type my password once at startup, my question thus is whether it be possible to: P. I looked at a website explaining swap and one which has hibernation into swap file described. I created a partition using Gparted. But no luck. They basically express two different things. Commented Sep 15, 2018 at 15:01. But. 04: Increase swapfile size to match RAM size up to 8GB. install into existing partition(s) without format; does it cause swap to get re-used I would allocate the swap-partition at the end of the disk though. However the swap partition is not protected after resume. They serve the same purpose but one dedicates a partition for swap and the swap file works a little differently but under another partition, literally using a file as swap, usually under your root directory ( /swapfile ) I believe Ubuntu (idk about Manjaro) use swap file. Is it still possible to hibernate? I have my system configured to suspend on lid close, but many times I find it closed but the fans spinning up really fast and the computer hot even after Found this on bugzilla and it matched my kernel log. That should cover most behaviours. Brüffer Stack Exchange Network. Now I want to buy laptop with 32GB of RAM and I guess creator will try to make 32GB swap partition. I have parallel installations of ubuntu and elementary os. Hibernate with LUKs Encrypted Swap Partition Outline and References. Install dependencies: sudo apt install pm-utils hibernate uswsusp Find your UUID and swap offset: "Suspend" preserves the state of the memory in situ by making sure a small amount of current is delivered to the memory modules despite the fact that the computer seems like it is turned off. Commented Dec 2, 2011 at 1:09. With small RAM amounts, swap partition is crucial! In this situation, swap is needed so that the system has a 'place to go' once the RAM is filled up. Everything happens successfully including sudo pm-hibernate But when I restart my system after Hibernate its not able to load my swap partition. Details on swap partitions, resume, polkit, and xsecurelock. It suggests swap size to be: Twice the size of RAM if RAM is less than 2 GB; Size of RAM + 2 GB if RAM size is more than 2 GB i. A SSD with 100 TBW will then last for. fr 2021 # Enables Hibernation with swap file with menus on Ubuntu 20. Follow answered Feb 13, 2019 at 14:16. Moreover whatever changes you are trying to do make sure that the partition is unmounted. I want to disable this behavior and use the swap for hibernating No, you don't need a swap partition, as long as you never run out of RAM your system will work fine without it, but it can come in handy if you have less than 8GB of RAM and it is necessary for hibernation. Still need to test suspend-then-hibernate when I close the lid (in logind. Had a Q4OS based on Debian 11. But given the incredibly fast boot time of Ubuntu when booting from SSD a wake up from hibernation may be slower than a reboot. 5GB simply ensures there's more than enough to push all of RAM into swap at hibernate without too much of a fight. 5 # install needed packages sudo apt -y I have a dual-boot system alongside Windows 10 that is already installed and running. If you don't want the installer to format and use the existing swap partition, the only way I know to avoid it is to first make a Full install to an external USB drive same as installing When I hibernate my Ubuntu 20. If you run applications that I've been trying to enable hibernation functionality to my installation of Ubuntu 24. Ubuntu installs a small swapfile by default (2GB on my system) rather than a swap Once you enabled zram you still need a small swap partition or swap file for hibernating, but there should be almost no writes to it. 10 finally updated polkit and this version no longer uses pkla files. 04 Hibernate Using Swap File To get this behavior, you need to enable hibernation through a swap partition or file. I was following the official documentation here and I attempted the "hibernation test" by executing sudo pm-hibernate from a command prompt. Down Side. I tried some solutions (listed below) but none worked. ubuntu hibernation Hello all, So I have a question regarding what is possible regarding hibernation with encrypted SWAP partition. 1 LTS + 8GB Ram + 17GB Swap partition ( HP-2000 Laptop ) even my swap partition larger than RAM, when i'm trying to execute. There is already a bug report on this, without real activity unfortunately. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. How can I hibernate on Ubuntu 16. 04 LTS can This seems to be be plenty but consider that with each hibernation you may write up to the whole amount of RAM you have built in. I'm trying to enable hibernation on Ubuntu 22. conf) which for me would be ultimate goal The following command is used to get the UUID ( Universal Unique Identifier ) of the Linux swap partition configured on your Ubuntu system. 04 following the advice of Arian Acosta from the blogpost. Generally speaking, the recommended size for a swap file is 2X the amount of RAM, but you can make it as big as you I just created a swap partition out of my useless USB drive (4GB). 5 # install Then, delete the previous linux-swap and make a new one. I'm successfully using it, it shows in the top command and I also edited the etc/fstab to automatically mount it at startup. Making the swap partition work for hibernate (optional) 'INFO: This will not work for 12. 5 MB swap space, where x is the amount of ram present. "Hibernate", which some call "suspend to disk", physically copies the contents of the memory to disk and then fully shuts 4. Reboot back into your installed OS (ie without the live CD/USB) Go to "partitions" or "gparted" to get the UUID of your new swap partition. It can be located on any partition (root or home, for example). 04 LTS allows you to create swap partitions in the Manual partitioning area, and post-install you can setup and use swap files (see How to create a swapfile in Lubuntu 20. swappiness=0, adding the hibernation partition with swapon, activating hibernate, then after resume using swapoff for just the hibernation partition and restoring vm. Before we start, some data about my system: ThinkPad T14 Gen 1 AMD; Ubuntu 22. 04, most of the time it works, but sometimes it just hangs there. For further information: The question is asking why Ubuntu needs swap to hibernate, not what is a swap partition and why should you have one. Swap (partition vs file) for performance. Save I recently enabled hibernation on a swap partition on Ubuntu 22. 5 or more swap, no more than a few gig if used just in case peaks on RAM usage but good system planning, monitoring and more than required RAM to run apps needed and not have to swap, swap is poor performance so best to If you want to use a /swapfile to hibernate instead of the swap partition:. When HDD is missing during system boot Grub tries to find partition with swap on HDD and hangs for this on about 33 seconds. There is no other good reason to have a swap partition 1) that large and 2) on a dedicated swap partition for a desktop computer. 06 x64. How to debug slow hibernation. – # NEW entry since Ubuntu 18: [Re-enable hibernate by default in upower] Identity = unix-user:* Action = org. Not every user has the storage for that (unfortunately there are still machines with small storage UUID="xxx" /dev/sda7 none swap sw 0 0. upower. Hot Network Questions P. Suspend will eventually run down your battery on a laptop. Therefore, your swap partition should be at least as big as your RAM size. Install dependencies: sudo apt install pm-utils hibernate uswsusp Find your UUID and swap offset: A swap partition of 4GB (8GB is not required) will make your system much more stable and is highly recommended. Click the hibernate option will perform the hibernate It defaults to the swap partition you installed and I know this because if you by some chance change your swap partition or UUID you need to update it there and run sudo update-initramfs -u for hibernation to work again. Does the Ubuntu installation have a swap file or a swap partition? Add that information to your question as well. I'd use this method to verify presence of a swap partition. 3 (not waking up after No. Source:C. * Install Ubuntu Without Formatting Existing Kali Linux Swap Partition I don't think there is a problem installing Ubuntu on a computer with an existing Swap partition but this is the users choice. target–after the system shuts The only drawback to this method is that after 3 password attempts the system anyway continues booting, though without mounting the swap partition. Please help in resolving this. When you get to the desktop, launch the app called Gparted. 04 for the first time after the upgrade was available, I could not create three different partitions: swap, /, and home, so I installed them all together in the space I'd reserved for Ubuntu. 2 LTS Check the swap that is in use: sudo swapon -s If swap partition(s) are found: sudo swapoff -a sudo nano -Bw /etc/fstab Add # before the UUID of the swap partition(s): # UUID=XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX none swap sw 0 0 Add a line for the swapfile, if one does not exist: /swapfile none swap sw 0 0 Learn to set up hibernate on Ubuntu 20. Ubuntu 19. Currently I have laptop with 16GB of RAM and 512GB SSD. Could you please post text files, dialogue messages, and program output listings as text, not as images? Hibernate without swap partition. 4. Create / Partition: Select free space and press on Add button. Basically, as soon as ive installed ubuntu, using the automatic partitioning, if i run gparted and look at my disk partitions, my swap space is displayed as unknown, with an exclamation mark next to it: Ok, next step, i manually assign the 'unknown' section to be a swap partition, and attempt to hibernate. 04. I removed my swap file using: sudo swapoff /swapfile But I have a line on /etc/fstab with my old swapfile. So it may not work even if you create a swap partition. Use a swap file rather than swap partition for improved performance. If swap partition(s) found: sudo swapoff -a. At first glance you cannot have too much swap because you can see swap as a way to increase RAM. Only at first time it went off so i thought swap did worked for hibernation but when i boot my system again every work was gone. Most of the online resources mention a command swap-offset which I think comes from the package uswsusp. I followed exactly as mentioned in the first answer. Size of swap partition for 4GB ram. you can run all without one. Ubuntu boots very fast without hibernation. Note: if using Btrfs DO NOT attempt to use a swap file as this may cause filesystem corruption I'm pretty sure Ubuntu defaults to suspend these days, which means you can get away with a much smaller swap partition/file. sudo blkid | grep swap. Install dependencies: sudo apt install pm-utils hibernate uswsusp Find your UUID and swap offset: A swap partition on your SSD will let you wake up faster from hibernation (aka "suspend to disk") as compared to swap on a hard drive. Disk speed impacts hibernate resume time. ** Affects: systemd (Ubuntu) Importance: Medium Status: In Progress -- There is hibernate option even without an active swap partition https: //bugs [Bug 1313522] Re: There is hibernate option even without an active swap partition Martin Pitt martin. Actually it doesn't increase RAM, it just pretends to: If you have 8 GB of real RAM and a swap space of, say, 24 GB configured, then your programs can allocate and use up to 8+24=32 GB of memory which sounds good at first. 000 : 16 = 6250 hibernate cycles 4 hibernations a day makes this 1562 days or 4,3 . 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. All of the information in memory will be written to the swap partition so the computer does not 'forget' what Ubuntu installation does not make a swap partition any more. We may, however, want to have a smaller swap file or partition if we don't plan to hibernate our system at any point. /swap partition: Since 18. 0. Wubi install: How to increase swap size. I'm using a 20GB SWAP partition at the end of my storage unit. 04 with swap partition, after struggle with swap file. This time I got a pre log error: "PM: image not found" And a post hibernation log error: "Inconsistent memory map" and "image mismatch" To enable Hibernation in 20. /dev/sda7: UUID="4656a2a6-4de0-417b-9d08-c4a5b807f8dd" TYPE="swap" First note that you only want to create a separate swap partition of 64 GB if you intend to enable hibernation. At the same time suspend to memory and resume from memory works fine without a problem, including the login screen on resume. The hibernation implementation currently used in Ubuntu, swsusp, needs a swap or suspend partition. Some folks prefer a separate /home partition, others don't. 04, a separate swap partition in most Desktops has been superseded by a swap file within the root (/) partition. 2. Needless to say it failed, in the sense that the screen went dark for a few seconds and then You have a swap partition and that's where the hibernation goes. A lot of advice suggested the grub command-line fix (like mentioned in earlier answer here). The following articles explain These are the steps I used to get Hibernate working on a Lenovo T490 with Ubuntu 22. I always use "full encrypted disk" option in installation creator which automatically create 16GB swap partition. 10 and 14. Step 3: Fetch Hardware Parameters. The only drawback to this method is that after 3 password attempts the system anyway continues booting, though without mounting the swap partition. 6. Hibernation also needs swap to function. You can release some space from /home - make around 15 GB from that and add into your swap. My problem is, while switching on my computer, I see this message with all the text Hibernation: resume: no device specified I am struggling to set the hibernate mode on my Ubuntu laptop. Copy the UUID. One can substitute the 4G here sudo fallocate -l 4G /swapfile with any amount of gigabytes you want. Whether I hibernate from the power menu or using sudo pm-hibernate, it turns the computer off but when I turn it on again and choose Ubuntu from the grub menu, it just gives a black screen. D : Ubuntu Desktop uses Swap to Hibernate (PC off, no power needed, program states saved). 1 running on it before, hibernated without any problems. Ubuntu installs a small swapfile by default (2GB on my system) rather than a swap partition. Extra Reading:Swap encryption, and Ubuntu - How to encrypt swap partition. So is there any way to achieve hibernation without swap partition? The following link would be helpful but I can not understand it fully, Ubuntu 18. We've achieved our primary goal of setting up hibernation on Ubuntu 20. And now I have 2 questions: Did anybody of Your had seen documentation about structure of swap partition? Does anybody knows something about mechanisms of integrity assurance of Swap partition? #/bin/bash # Ekimia. 04 LTS), so it is likely that these instructions will also work with other versions of Ubuntu. Visit Stack Exchange However, IF the PC that has been installed on has large amounts of RAM, the swap partition may be used less. To replace a swap partition with a swap file on a bootable USB: Check the swap that is in use: sudo swapon -s. My output is like below: You can see that /dev/sda7 is a swap partition. With some troubleshooting, you should be able to get hibernate functioning properly on your Ubuntu system. The following articles explain how to do it in detail: Linux Add a Swap File – Howto; How to use hibernation without a swap partition (this also uses a swap file) This procedure was tested on Ubuntu 12. Filename Type Size Used Priority /dev/zram0 partition 2553148 0 5 /dev/zram1 partition 2553148 0 5 /dev/zram2 partition 2553148 0 5 /dev/zram3 partition 2553148 0 5 So I now seem to have swap in ZRAM. 3. Secondly, note that there is no "best possible way" to repartition a drive. ) Share. 04) hibernate used to work OK, without the resume parameter in grub, before the change to the swap partition. Ubuntu 20. It is necessary that you create a swap partition for Linux, if you intent to use suspend-to-disk, also known as hibernation. Creating a swap partition on an SSD will cause life-decreasing wear. In simple terms, the swap partition or swap file is used when your installed memory is full and instead of the computer crashing it will place some of its memory in the swap partition. That package is no longer part of Ubuntu. Identify the swap partition in the list and note its starting sector. I'll still use swap partitions on most of my machines, but my systems are mostly dual boot & thus I can have multiple systems share the same swap partition thus No @Takkat, I've followed the same steps to create swapfile and to make Ubuntu know about this file. I can hibernate my computer, but after I restorer the system from hibernation it is using the swap partition for swapping memory. swap partition vs swap file. You cannot hibernate to swap file, as mentioned by @Takkat, I have check and i have 1st time in my life try to hibernate but its not working, so if you want to hibernate yo need swap partition, otherwise if swap file is good to go. Upgrades will use an existing swap partition, if it exists. The system has swap partition $ lsblk | grep SWAP └─sda5 8:5 0 16,8G 0 part [SWAP] $ free -m total used free You don't need to have a full partition dedicated to swap, and you don't need to re-partition. When the system runs out of free memory, memory contents will be exchanged into the swap partition, and if there is no swap partition, the system crawls to a halt. @elvis. The resulting line printed shows attributes of the active Linux swap partition, including the UUID unique identifier. hibernate; org. swapon --show NAME TYPE SIZE USED PRIO /swapfile file 2G 0B -2 sudo swapoff /swapfile sudo rm /swapfile No swap, unless you have a HDD to put it on; you will not be able to use hibernate without swap, just use suspend it is faster anyway; swap is only useful if you don't have much ram; if you dont specify a size of a tmpfs ram disk in fstab it defaults to 50% ram with one partition "/" of 80 GB for Ubuntu. Soren A Now I want to use the swap partition only for hibernating (not for swapping memory) because the SSD don't like the type of usage required for a memory. – HomerSimpson. ** How can I achieve this? Recommended minimum swap size for the system with 4GB RAM is 2GB without hibernation and 6GB with hibernation. 01 (and my Xubuntu as well). Just put a Lubuntu 20. However, I am not sure how well hibernating to a swap file works nowadays. Follow edited Oct 23, 2010 at 19:07. To resume from hibernation correctly, the Linux kernel requires your unique swap UUID and offset where memory data got stored. Straightforward tutorial on how to set up hibernation without a swap partition (swapfile) Then every Ubuntu install (from GUI) would also have to have swap that's at least a few bytes (or however much the swap header is) bigger than RAM. I assumed the working boots used the partition for the resume image IMHO, either the swapfile allows the kernel to further reduce the image size (ex swap out application memory) or systemd supported swapfiles all along and a recent bug I have been using hibernate with Ubuntu 16. After system booted in logs there were the following messages about timeout for waiting for missing HDD (which I intentionally removed) You can make use of gparted to increase the size of swap partition from the current 15GB to 30 GB. What the problem I have:. RAM+. If you have made the linux-swap partition, then boot into your Ubuntu launch Gparted. However on my system (Ubuntu 14. This answer does not deal with using TPM or other means of bypassing the LUKS password prompt. When I installed Ubuntu 24. Problem: I wanted to hibernate my computer but I couldn't without a swap file or swap partition. Visit Stack Exchange In a couple of days, I'm going to buy a new notebook (Asus N551, should it matter), tending to replace the HDD with a Samsung EVO 500GB SSD. – I'm running on ubuntu 18. Ubuntu is not Windows with a separate Hibernation file that takes up additional space on your hard disk. Swap files avoid fragmentation slowdowns. ** I Need To Inform My Ubuntu That I'm Using A Swap Partition. 04 did not work out of the box (I mean sudo systemctl hibernate). 5GB of swap for 3GB of RAM; Ubuntu has an entirely different perspective on the swap size as it takes hibernation into consideration. To delete the swap partition, type d, and press Enter. 04 and later a swap file is created by default instead of a swap partition. Hibernate vs. So that's also the answer to your question: you can't use hibernation without swap on linux. A separate swap partition is no longer If you don't want to use a swap partition, you can use a swap file: a filesystem image stored on a regular file and used as your swap space. I've always used a swap file, so this guide will be for a swap file, not a swap partition. handle-hibernate-key Also if you're planning to use hibernation, you might want to have some swap space. Without having swap partition how to hibernate using only "SWAP FILE" 71. I want to be able to hibernate both of them so I created 2 swap partitions. Let's say I open lots of programs, browser tabs, etc, and it hibernates (either manually or because of low battery). This tutorial explains how to encrypt a partition and use it as swap space with support for hibernation (suspend and resume) on Linux distros such as Ubuntu, Debian, Manjaro, and Arch Linux amongst others. But the latter one requires you first to right-click on the swap partition line and select Hibernation works in my case without this step!! If it’s NOT for you, try regenerating initramfs via a new rule. As far as I was able to find, there was no way to encrypt the partition but leave a swap partition, so I don't have one. login1. If you plan on hibernation, then you MUST have swap, no if ands or buts. Re-disable swap on the hibernation partition on resume. First, find the swap file, disable and delete it. Swap file will try to write quite a bunch of data so it will slow down the computer and kill my USB faster. So my question is whether any of the following 3 alternative options could be potential alternative It is not a good idea to hibernate your Virtual Box virtual machine to the virtual disk swap. However, it's even more convenient to have a simple shortcut that can auto lock and hibernate our system. Install dependencies: sudo apt install pm-utils hibernate uswsusp Find your UUID and swap offset: But in hibernation, the ram content is stored in the swap space, so power can be completely cut off. Create a New Swap You have quite much RAM and therefore swap is unlikely to be used often (except once per hibernation then, of course) and if your SSD is rather modern, it also won't be that sensitive. Follow edited May 1, 2013 at When installing Ubuntu unless you do a manual partition, you get roughly and x+. Note on speed SSDs are best at quickly accessing and reading many small files and are superior to conventional hard drives for transferring data from sequentially-read small or medium-sized files. If hibernation works here, it indicates a configuration issue with your installed system rather than a hardware problem. Applications; Partition alignment 1; 1 Source:How to maximize SSD performance with Linux Consider an installation (of Ubuntu, for example) with a swap partition that's smaller than (let's say half the size of) the RAM. You actually don't have to have swap partition, but it is recommended in case you do use up that much memory in normal operation. 100. Use blkid to retrieve the UUID of the associated swap storage volume: It defaults to the swap partition you installed and I know this because if you by some chance change your swap partition or UUID you need to update it there and run sudo update-initramfs -u for hibernation to work again. Because I always forget how to set this up, I'm writing a canonical reference for myself and hopefully it helps you as well. You can set up your machine to hibernate in your distro's power settings on laptop lid close or hibernate How to use hibernation without a swap partition. 04, resume from hibernate work differently in 12. It covers how to restrict the usage of that Test with either sudo systemctl hibernate or pm-hibernate if you have pm-utils. 04 installation) Second Enable Stack Exchange Network. 8. So, my point is that you of course can live without swap and enable it only for hibernation, but only if you're sure that 99. In fact, hibernation to a swap file on an encrypted volume works just fine on Ubuntu, even with swsusp. File size of [swapfile] is 0, but swapon shows I have swap. If you want to use a /swapfile to hibernate instead of the swap partition:. 04 echo "WARNING : hibernate might fail on your machine if not officially supported , use with caution , press a key" read start echo " starting enabling hibernate " #CHange this value to size the swapfile X times your ram swapfilefactor=1. Share. P. Open a terminal with CTRL + ALT + T and type. However this will likely still use the regular swap partition for hibernation data unless you disable it first with swapoff, which will If you've already installed Linux and allocated a swap partition on the SSD, you can simply set aside a partition on a spinning platter drive and edit your /etc/fstab swap entry to point to it instead. For more information on the need or not fro swap, see Ubuntu Swap Faq, or Swap Requirements But if you wanted to you can have a swap partition or a swap file. Don‘t forget this crucial step! Without persistent swap, you‘re hibernate wouldn‘t resume properly next startup. But you must ensure that it has a lower priority than zram. dukaj it's perfectly fine to also use the device name. Add a comment | [Bug 1313522] Re: There is hibernate option even without an active swap partition Ara Pulido ara at ubuntu. Now how do i map the installations and swap partitions so that none override each other. 04 (following this tutorial) but I'm confused about what my system tells me about the current swap configuration so I'm hesitant to just change it without knowing what I do. 04 hibernate/suspend. For example sudo fallocate -l 2G /swapfile for TS. First, create a swap file: fallocate -l 256m /swap mkswap /swap chmod 600 /swap "256" refers to the size in MBs ('m' after it). . By default Ubuntu now uses swapfile as its easier to manage (no partition changes are required to increase/decrease size). If you want to enable hibernation, you'll need a larger swap file. Suspend As far as I know this is not needed, you should be able to hibernate without an extra partition because linux should be able to use a file, too. sudo systemctl hibernate or sudo pm-hibernate. Ubuntu 22. e. By having your swap as a file, you can disable it without having to deal with partitions or remove it and reclaim the space. I tried to set my system to hibernate by using sudo systemctl hibernate, but it didn't work and got Hibernation (suspend-to-disk) The hibernation feature (suspend-to-disk) writes out the contents of RAM to the swap partition before turning off the machine. Ubuntu Desktop uses Swap to Hibernate (PC off, no power needed, program states saved). If You Use Hibernation, You Need Swap Hibernation (suspend-to-disk) The hibernation feature (suspend-to-disk) writes out the contents of RAM to the swap partition before turning off the machine. For my research, I use Linux Ubuntu 16. sudo blkid | grep swap If you see an entry with TYPE="swap", be sure that, you have a swap partition. Follow the same steps to configure swap and hibernate in the live environment. Did not like some other things, so I decided to get back to an Ubuntu flavor, but the installer did not put any swap file or partition on it (maybe it got confused by Q4OS’s swap partition). Then choose "Try Ubuntu without installing it". Without having swap partition how to hibernate using only "SWAP FILE" 0. Ubuntu and the circle of friends logo are trade marks of Canonical Limited and are used under licence. Performing this possibly makes editing a config file (/etc/fstab) necessary. pitt at In Ubuntu 13. 0 that is used in Ubuntu 24. 04: hibernate with 2 swap partitions, or 2 swap files, or 1 of each, which do I resume from? If you don't want to use a swap partition, you can use a swap file: a filesystem image stored on a regular file and used as your swap space. 04LTS system. The appropriate way to achieve hibernation is to close your virtual machine with Machine -> Close (or just close the virtual machine window):. 04 (fully updated). Do not assume it will work on other versions or distributions. Substantiation is: this is the only answer that allowed me to How to resume Ubuntu 18. answered Oct 23, 2010 Hibernate without swap partition. # create an big empty 1GB file (or whatever size you like) dd if=/dev/zero of=/swapfile bs=1M count=1024 # format the file as swap mkswap on my DELL XPS 9300 hibernation works on Ubuntu 20. There is no longer a default swap partition, but Ubuntu will use it. 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 Now I want to use the swap partition only for hibernating (not for swapping memory) because the SSD don't like the type of usage required for a memory. @Kal You could script the hibernation process, setting vm. As I would like to use hibernation To prevent any data from being left in the host computer's swap partitions, a swap file should be used or swap should at least be turned off before exiting: sudo swapoff -a. The swap partition entry disappears from the partition table. These are the steps I used to get Hibernate working on a Lenovo T490 with Ubuntu 22. Add a comment | I knew if I made swap partition on it, it would slow down even worse so I decided to not make one. 04 there should be no disadvantages of using a swap file instead of partition? No @Takkat, I've followed the same steps to create swapfile and to make Ubuntu know about this file. 04 the "hibernate" option will always be displayed in the system dropdown menu, even if there is no active swap partition. You can also do this from command line on the Visit Dracula Servers and experience reliable VPS hosting without breaking the bank. – oldfred. Commented Mar 30, What size should swap partition be if I want to hibernate later? 4. Hence it is recommended to have swap size as large as the ram size. 04 using systemd. 5. I tried to set my system to hibernate by using sudo systemctl hibernate, but it didn't work and got The swap partition can hold a lot of unencrypted confidential information and the fact that it persists after shutting down the computer can be a problem. I'm trying to enable hibernation on my laptop, a Dell XPS-13 (with a 256 GB SSD mounted as an encrypted volume). Swap partition is active and equals RAM size + 2GB; GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=myswapuuid" it's impossible with the official Ubuntu kernel since version 4. 1. One says use the volume with exactly that UUID (something that will change with another mkswap run) and the other says to use primary partition number 3 of disk /dev/sda. You do need the ESP - efi system partition for UEFI boot. 04 LTS and am failing miserably! I'm running it on an Intel Core i7-7700K with 16GB of RAM and SSD. The state is written either to a swap partition or to a swap file. Firstly, open terminal (Ctrl+Alt+T) and run command to create a config file: Works on Ubuntu 24. There are 2 different ways to hibernate (suspend-to-disk) on linux: tuxonice (formerly suspend2), which is not. target is non-functional, similar to After=shutdown. Choose "Save the machine state" for "hibernating" to a file on your host partition. – psusi. For the people that are under the impression you don't need swap, you do. So while doing some research on the difference I came to the conclusion, that for Ubuntu 20. target and After=sleep. Mostly Dell Notebooks like mine seem to be affected. When SSD and HDD connected to laptop together everything is fine. To encrypt SWAP, see Encrypted swap partition on Ubuntu. Should be no real need to tinker. It's a logical new feature because of the emergence of SSDs. 10. Set this for at least half the size of your RAM. Failing to recover from hibernate. The only guides/ answers about enabling it refer to prior versions and reference creating a polkit pkla file to enable the option in power settings (after setting up swap, etc) however it looks like 23. This is true for at least Quantal, Precise and Lucid so I guess its true for current supported versions too. And swap over 4GB is a waste unless you want to hibernate, Specially, I'm trying to understand the structure of Linux (non-crypto) Swap file / Swap partition. Each hibernation will in the worst case write 16 GB of data on a laptop with 16 GB of RAM. 13 due to kernel lockdown patchset (efi-lockdown). It doesn’t cover a set up for basic hibernation. . sudo nano -Bw You have been subscribed to a public bug: In Ubuntu 13. In the not so far past, only hibernation to swap partitions was supported. System itself will deal with RAM/swap usage. cqha kref wyavpyx tvgao dimkcw mrhzv vrkpyh bjp gaz tzeqf