Unix systems, and other Unix-like operating systems, use the term "swap" to describe both the act of moving memory pages between RAM and disk, and the region of a disk the pages are stored on. In some of those systems, it is common to use a separate whole partition of a hard disk for swapping. These ...

learn more… | top users | synonyms

0
votes
1answer
335 views

Ubuntu taking way too long time to start

So, I have a Dell laptop. Core i5 4th Generation and 8GB RAM. I recently installed Kali alongside Ubuntu and Windows 10 and then when I booted from Ubuntu (15.10 with Gnome) again it took a VERY LONG ...
4
votes
2answers
401 views

Size of swap partition for 4GB ram

I got a notebook with 4GB RAM and i want to create a swap partition with the exact same size, using gparted. gparted has GiB and MiB as units. is the correct amount 4 GiB or 4.295 GiB?
2
votes
0answers
49 views

Swap is still being used heavily although swappines has been set to 5

I run ubuntu on 4 Gb of RAM, and found the system still using 20% of Swap although the RAM is only 57% full and swappiness set to 5. The result of cat /proc/sys/vm/swappiness is 5. Is this is ...
0
votes
0answers
16 views

How do I get rid of this delay after deleting my swap partition?

I deleted my swap partition recently with gparted. Now when I bootup, there is a 15-40 second hang after I choose "Ubuntu" from the grub menu. It just says this ACPI probe or something message that it ...
0
votes
0answers
79 views

Performance penalties of using zram on a high-memory machine

I've heard zRAM does wonders in low-memory machines, like allowing to have 20 tabs open in a browser window without swapping or OOM - all that even without noticing that zram has kicked in! I am ...
0
votes
1answer
116 views

Do I Really Need A Swap Partition? [duplicate]

I am about to format and manually partition my hard drive for Ubuntu for the first time. I have 16GB of RAM. I am wondering if I should even allocate a swap partition? Should I just make a root ...
0
votes
0answers
11 views

How can I select a partition for use as swap space during installation? [duplicate]

I'm getting an error message: You have not selected any partitions for use as swap space. I'd like to select a partition for use as swap space but I can't figure out how to. I can select the ...
0
votes
1answer
227 views

How to make hibernation work again on 15.10 after disabling encrypted swap

on my clean install of Xubuntu 15.10 I am unable to make hibernation work, although it's been working on my laptop successfully since 11.10 or so. The only thing changed is that I have selected "...
1
vote
1answer
43 views

How to enable unused swap disk?

After some months of use I've found out that my system has no swap memory available. I urgently need it in order to build some huge software projects. cat /proc/meminfo prints the following: ...
1
vote
2answers
35 views

swap partition limits my drive

why is the swap disk not just a file inside the main partition? setting as a seperate partition limits my ability to extend 1 partition for anaother O.S.
0
votes
0answers
364 views

Why Ubuntu 15.10 won't free cached RAM?

Description of the problem: The issue I'm having is that kswapd seemingly randomly goes into a wild spin and my laptop becomes totally unusable. (edit) This is not a problem if insufficient memory....
0
votes
0answers
59 views

Cannot allocate memory and file name too long

I am working on my bachelor thesis in cooperation with a commercial company and before I can start actively developing, I must run some kind of regression tests they have. Test script is written in ...
0
votes
1answer
44 views

Graphic aberrations when swapping

Ever since I started to use Ubuntu on my ThinkPad X200, I have noticed that in certain situations certain graphical elements (desktop backgrounds, button icons, text) will become distorted. You can ...
0
votes
0answers
14 views

When does disc swapping happen?

How/When does Ubuntu decide to swap to disc? For the sake of argument, let's say I am running one or more Fortran/Python programs that require more than the 128GB RAM available on the server. ...
0
votes
2answers
317 views

Will Ubuntu 15.04 create a swap partition with the default installation?

I am going to install a fresh Ubuntu 15.04 on a Lenovo X1 Carbon. I plan to select the default Erase disk and install Ubuntu option and tick both Encrypt the new Ubuntu installation for security and ...
0
votes
1answer
70 views

Long running kiosk application eats up memory without freeing it

I've a long running application built with PHP/HTML/CSS3/JS running on Chrome on a Ubuntu Server 14.04.03. I've set everything up to make it work and let it run for some days. I've noticed something ...
0
votes
1answer
40 views

Accidently added linux swap partition to windows without formatting [closed]

The PC no longer had Ubuntu, I had already added the Ubuntu storage partition to windows but forgot to add the swap partition. Some days later I added the swap partition to windows through windows by ...
2
votes
2answers
67 views

How can I redetect swap partition after formating to enable hibernation

I had this setup working on my laptop: /dev/sda1 (ext4) / /dev/sda2 (ext4) /home /dev/sda3 swap partition /dev/sda4 (ntfs) /media/windows After getting sick of windows, I removed the last partition....
0
votes
4answers
1k views

disk requirements for 15.04

How much space does Ubuntu 15.04 (64 bit) use on a SSD disk? How much swap space to assign for standard desktop usage?
0
votes
1answer
28 views

SWAP increasing during network traffic

I have a huge HDD with /home mounted and a small SSD with / and swap (6GB for the latter, 5.7GB shown in Ubuntu 15.04). From another computer, I initiated writing into my HDD. I intend to transfer ...
1
vote
0answers
258 views

Install Ubuntu with full disk encryption - /dev/mapper/vg-root does not exist

I want to install Ubuntu with full disk encryption without swap. Therefore I've followed: Install Ubuntu 15.04 with full disk encryption, but without swap partition It didn't work, thus I've also ...
0
votes
3answers
502 views

How should I customise partition sizes for my installations?

I've been using this guide as my go-to for how to install Ubuntu onto my desktops, particularly the partition scheme: http://www.tecmint.com/ubuntu-14-04-installation-guide/ However, I've realised ...
0
votes
0answers
27 views

dual boot / mac10.10 & ubuntu14.04.3 with SWAP and shared data partition

The 128GB SSD on my macbook air (mid 2011) crashed. I'm getting a new SSD frow OWC with 480GB. Should be installed tomorrow. I would like to take this opportunity to grow back towards Ubuntu, ...
-1
votes
2answers
52 views

I increase my ubutu performance withough swap partition? [duplicate]

I ever install Uuntu withough swap partition or file, is that ok?, or i must create one? How can i see if i need it
2
votes
1answer
86 views

How to use all unused swap partition?

I am sorry if my question is repost from another, but this is quite confusing to me. First, I will start with my situation. I have a Laptop with 8GB RAM and 320gB HDD. I install Ubuntu 14.04 x64 to ...
0
votes
2answers
242 views

How to create separate swap partitions for 2 linux distro

I have triple booted my laptop with those OS and also installed them in this order: Windows 8.1 Pro, Ubuntu 14.04 LTS, Kali 2.0 When installing Ubuntu, I also created a swap area (8 GB) for it to use ...
0
votes
0answers
63 views

Ubuntu fails to boot after deleting swap

System: Ubuntu 15.04 64 Bit (only OS on the machine, only 1 hard drive). I chose "encrypt my home folder" during the installation. In system monitor I see a swap partition available but GParted shows ...
0
votes
0answers
44 views

Triple Boot, Swap Area

Currently have Windows 8.1 Pro and Ubuntu already running on my system. Ubuntu has swap area of around 4 gigs. I am manually doing the partitioning for the new distro (kali 2.0) which I'm installing. ...
1
vote
1answer
89 views

Can swap be used instead of RAM?

I have an older netbook that I love. It's currently using a relatively recent version of Lubuntu. The hangup is its relatively low amount of onboard RAM: 1GB. This amount also cannot be updated as it ...
1
vote
0answers
55 views

swap partition crashes 14.04/12.04

Hardware: Acer Aspire ACX-603-UR10 8 GB RAM Blue WD010EZEX 1 TB HDD -- or -- Green WD30EXRX 3 TB HDD -- or -- Samsung HM251JI 250 GB HDD Seagate ST3160815AS 160 BG HDD (Windows 8.1/now upgraded to ...
2
votes
2answers
129 views

Ubuntu 15.04 not using swap

I am running Ubuntu 15.04 on my Dell laptop. For some reason Ubuntu is not using swap. The swap partition is created: Device Boot Start End Sectors Size Id Type /dev/sda1 * ...
0
votes
1answer
148 views

Slower boot after installation with encrypted home directory

I have installed Ubuntu 15.04 x64 recently. I have observed that in comparison to non-encrypted installation, the installation with encrypted home directory results in slower boot time: without ...
2
votes
1answer
118 views

Swap partition mount error

Every time Ubuntu startup, a message is displayed : Partition is not mounted, continue to wait, press S to skip mounting, or M for manual setup. # swap was on /dev/sda1 during installation ...
7
votes
4answers
234 views

swapon has no effect, /proc/swaps remains empty

My Ubuntu server has no more than 512 MB of memory. It is not enough for running Node.js + MongoDB. Hence I decided to add a swap file: # dd if=/dev/zero of=/root/myswapfile bs=1M count=1024 1024+0 ...
0
votes
1answer
64 views

Why server uses swap [closed]

My server has 64GB total RAM and currently the server has 13GB free. But, it takes the swap. What will be the reason? The server using numactl.
1
vote
1answer
115 views

Can't unmount ext 4 in gparted

I wanted to add extra swap to my pc I followed lots of tutorials but i needed to make a unallocated partition and for that I needed to unmount ext4 I'm totally new in Ubuntu or linux Anybody a ...
0
votes
1answer
26 views

why the swap partition is not working

i have setup fully encrypted lvm on my laptop,it have created a swap partition also.But why system does not recognize the swap partition? here is the screenshot link
0
votes
2answers
71 views

How to add swap area? [duplicate]

This is the status of my system: $ grep 'Swap' /proc/meminfo SwapCached: 0 kB SwapTotal: 0 kB SwapFree: 0 kB Please let me know how can I increase the swap area without re-installing.
0
votes
0answers
79 views

Unlocking at boot time Luks LVM

This is my first question, but let me start by saying how much of a big fan I am up this site. Every question I ever had over the last 4 years has been answered here and I am so grateful for the help ...
12
votes
4answers
17k views

Why no swap partitions on SSD drives?

I often read that one should not place swap partitions on a SSD drive, as this may harm the device. Is this true? Can you please explain the reason to me? Because I otherwise would have thought that ...
0
votes
0answers
98 views

Ubuntu 14.04 Increase swap file size

So I am new to Ubuntu and Linux but I am learning. How do I increase the size of the swap file? I have been researching posts and have not found a solid solution. Based off previous post here is the ...
2
votes
1answer
209 views

With 128GB of physical RAM in my repurposed server, do I need swap space at all?

I have seen people asking question about the necessity of swap space with various amounts of RAM installed, but my question is one to two orders of magnitude larger in the respect of installed RAM. ...
0
votes
2answers
514 views

SSD - safe to use hibernate?

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. Now, I've often read that one should make sure that Ubuntu ...
2
votes
1answer
206 views

How can I convert a linux swap partition to ntfs? [closed]

Recently I decided to remove Ubuntu from my dual boot configuration of Windows and Ubuntu. I formatted the drive which contained Ubuntu, but I couldn't format my swap partition from Windows because it ...
2
votes
1answer
441 views

Should my swap size be zero or am I misunderstanding the output?

We are running an Amazon EC2 R3 instance so has 30G of memory available. We are running 5 Apache Tomcats (version 7). According to lsb_release -a the version of Ubuntu is: Ubuntu 14.04.2 LTS Tomcats ...
2
votes
2answers
88 views

Hibernation kills all programs

Following this answer I was able to restore hibernation on my Ubuntu Vivid Vervet 15.04. Unfortunately after hiberate/restore all running programs are gone, as if it was a regular power-off. Any ...
1
vote
0answers
67 views

Extremely slow OS. Swap related?

I really hope you can help me. An inexperienced sysadmin, installed Ubuntu on a new Dell Desktop, it's a pretty powerful machine, and I ran a bunch of hardware tests, and can confirm that RAM/HDD and ...
1
vote
0answers
62 views

Booting failed after enabling swap and installing uswsusp

After reinstalling Ubuntu 15.04, my swap partition was not active which is why Ubuntu did not hibernate. I followed steps given in this answer . I edited /etc/fstab/ by typing sudo nano /etc/fstab in ...
0
votes
2answers
27 views

Did I Dual Boot incorrectly?

I dual booted Ubuntu with Windows 7. I dual booted by shrinking my drive to 45 GB. This was for ubuntu. After I dual booted, I noticed that there was a small primary partition. I found out that this ...
0
votes
1answer
700 views

i2c-hid i2c-SYN1B7B:01:01 failed to retrieve report from device - problem during boot, device stops booting

My laptop is configured to dual boot Windows 8 and Ubuntu 14.04. Windows 8 works fine, but when I try to boot into Ubuntu, sometimes, boot gets stuck at: i2c-hid i2c-SYN1B7B:01:01 failed to retrieve ...