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 ...

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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
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20 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.
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6 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 ...
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0answers
9 views

had to force shut the system as ubuntu hangs sometimes when 3-4 apps are running [on hold]

Is it because i have 2gb ram and i didn't assign any swap partition.My root directory is of 40gb is it necessary to assign swap partition.I have dua core processor.
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4answers
64 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
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0answers
10 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
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1answer
35 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. ...
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2answers
55 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 ...
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0answers
18 views

Swap and Ram both maxed out and nearly froze my computer; what log files should I open, and who should I share them with?

Woah, linux just got gridlocked. Everything started screeching to a halt, not even mouse movement. Just opening tabs on chrome. Jumped to a terminal with ctrl+alt+f5 or something, took me minutes to ...
2
votes
1answer
48 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
41 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 ...
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0answers
27 views

Adding swap due boot take too long time

everyone. I noticed that adding swap takes too long: Jul 5 22:41:10 dizpers-pc kernel: [ 19.762255] Adding 7999484k swap on /dev/sda5. Priority:-1 extents:1 across:7999484k FS Jul 5 22:41:15 ...
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2answers
41 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 ...
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0answers
36 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
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0answers
19 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 ...
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2answers
26 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
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1answer
58 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 ...
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1answer
42 views

Swapping for best performance

I have Ubuntu on my laptop for like 10 days. I'm new to Linux. So I'm interested about getting better performance of my laptop. Laptop: DELL: Intel CPU i7-4510U 2.00x4 , Graphics: Intel Haswell ...
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0answers
22 views

Why am I being repeatedly asked for swap partition password when apt-get upgrade?

I installed recent kubuntu on a laptop, and choose to encrypt / and swap. Works fine. But very often, when I do apt-get upgrade, I get questions about password for swap partition. I could understand ...
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2answers
21 views

Why does the installer make an extended partition for swap by default?

Every time I've done a clean default install of Ubuntu or a variant on an MBR type system, I end up with a system partition and a swap partition. The installer always tucks the swap partition inside ...
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2answers
225 views

Ubuntu 15.04 installation stuck in a loop because of missing swap partition?

I say "because of missing" swap partition, but I am not sure about that. That's my hypothesis at the moment. Read on to understand the full context. I am attempting to install Ubuntu but it appears ...
0
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0answers
40 views

Swap is super slow on Xubuntu

Swap is somehow super slow on xubuntu. I have 8GB ram running vivid 15.04 Xubuntu. When ram usage reaches around 7+gb ... the hdd light goes crazy (actually, it just stays on) and stuffs get dumped ...
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1answer
55 views

Maximum RAM for my Ubuntu and laptop? [duplicate]

My laptop is Thinkpad T400, and running 64 bit Ubuntu 14.04. I wonder if there is no limit of the RAM size that I can use in my laptop? Now I am running Windows 8.1 in VirtualBox, which takes 2GB ...
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0answers
15 views

How to swap Caps with Left Control and change layouts using Caps Lock+Swith (grp:shift_caps_switch)

I already tried a lot of methods for changing this and none of those worked. I used xmodmap and setxkbkey but it both ways there's always problem with setting it. However, using those methods don't ...
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0answers
229 views

15.04 Swap won't “stay decrypted” (both Disk and Home Directory encrypted)

I just installed Ubuntu 15.04. During installation, I enabled both full disk encryption and home directory encryption. I then proceeded to install several applications. While installing these with ...
0
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2answers
70 views

creating swap partition, convert primary partitions to logical

I tried to install Ubuntu 14.04 into my laptop which already has got windows 8 installed in it. I had a 30GB free space and I allocated 29 out of that 30 as primary partition for Ubuntu. I wanted to ...
0
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0answers
70 views

How to find swap usage per process when conventional methods fail? (15.04)

I'm having some difficulty determining what is using my swap space on Ubuntu 15.04. Even though I've set vm.swappiness to 1 and have more than 1/2 of my 16GB of RAM free (or at least unoccupied by a ...
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0answers
23 views

Why does my Eee PC try to mount the extended /swap partition?

In PCManFM on the left side there is a volume called "1,0 KB Volume". When I click on it, it shows an error message that it can't mount /dev/sda2, but /dev/sda2 is extended partition with the swap ...
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0answers
44 views

vmware workstation on ubuntu 14.04 do not use ram and swap don disk

i have a strange problem, just get new notebook, moved disk from old notebook. new pc have intel i7 with 8gb ram, ubuntu 14.04 64 bit on board (previous was 3gb ram). i'm using vmware workstation ...
0
votes
1answer
16 views

Swap not working even after following previous advice

I have previously posted a question in which solsTiCe showed me how to setup a swap on a GPT partition. It worked for a while but now I am having problems again. The swap was not detected again. I ...
0
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0answers
16 views

Swap sharing Windows and Ubuntu

This question has been asked before but not in this manner. I have Windows 8.1 and Ubuntu 15 dual booting on an SSD, A secondary HDD is currently has a partition at the end that is NTFS formatted ...
3
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0answers
105 views

Slow shutdown caused by cryptswap

After upgrading to 15.04 my computer takes a very long time to power off. Hitting escape during shutdown shows messages like so: (1 of 6) A stop job is running for ...
0
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1answer
84 views

Ubuntu 14.04 too slow and laggy!

I have Lenovo Ideapad y510p and have dual boot Ubuntu 14.04 with Windows 8.1 and I uses Ubuntu for all my work specially for developing Android apps, I have 8GB of RAM and 9GB for swap, but it's so ...
6
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2answers
574 views

Add a swap partition post-install 15.04

I installed 15.04 onto a lvm partition with the mount point / and /boot onto a separate unencrypted partition. Can someone list the steps (clearly please) to set up a swap partition post-install? It ...
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2answers
194 views

Encrypted SWAP partition creation after ubuntu 15.04 installation, 15.04 installer bugs!

Today I decided to install clean copy of 15.04. Using the installer partitioning tool, I created an encrypted luks system volume, then created an unencrypted SWAP, clicked continue, then got an error ...
0
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1answer
17 views

Swap Partition: What to do with two different swaps, one of them encrypted?

I installed Ubuntu for the first time a few months back, and I have recently begun to really try and learn how my system works. So today I have been reading about Swap Partitions and so I have been ...
2
votes
2answers
63 views

Ubuntu Swap Partition on HDD

I'm installing Ubuntu on my SSD and don't want to waste space on a swap partition because I have 16GB of ram, nor do I use hibernation. But as a precaution, would there be any drawbacks if I created a ...
3
votes
2answers
69 views

Realistic working swap for 128GB RAM?

I've just installed Ubuntu 15.04 on a new 240GB SSD, and immediately noticed that /dev/ubuntu-vg/swap_1 on the resulting installation is 137GB. That seems excessive, even counter-productive, but ...
0
votes
1answer
28 views

How do I find out why I get anytime the same error message from an original Ubuntu script?

Swap2Ram.sh always produces its error message, even when I have enough ram left. Any ideas? #!/bin/sh mem=$(free | awk '/Mem:/ {print $4}') swap=$(free | awk '/Swap:/ {print $3}') if [ $mem -lt ...
0
votes
1answer
144 views

ZRAM vs. regular swap partition

I don't fully understand the functionality and the potential advantages of zram. For example: once zram is activated, what percentage of memory will be dedicated to paging? Another issue: obviously ...
0
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0answers
31 views

swap option missing while installing in ubuntu server 14.04 lts

There is no option to select swap partition while installing the server version....I have tried all the possible ways to check the option and not found anything. Is their anyway to enter manually
3
votes
2answers
85 views

Deleted Swap, now boot takes forever

Running Ubuntu 15.04. I was receiving messages about my root / partition running out of space, and so I looked up how to allocate more space to it. I followed the answer to this question: How to ...
0
votes
1answer
48 views

Neuroimaging Use: How big for partitions (root, home, swap) and some other Qs

I will be using my Ubuntu for neuroimaging use. This is my first time using -- I've been using Macs for the last few years so am not familiar with using Ubuntu on a regular PC. A few questions: Are ...
0
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1answer
50 views

Encrypted swap partition not available

How should I correctly set up my encrypted swap partition? How can I ensure that the setup persists? I'm running 14.04 using encrypted home folder. I noticed that occasionally my machine would ...
1
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1answer
867 views

Install Ubuntu 15.04 with full disk encryption, but without swap partition

I have a laptop with 16GB of RAM, but SSD is only 64GB. I need to install Ubuntu 15.04 with both standard options - "Encrypt the new Ubuntu installation for security" and "Use LVM with the new Ubuntu ...
0
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0answers
34 views

How to monitor the effect of increasing or decreasing swappiness?

I'm on a system with 1.5GB RAM (don't laugh!), half of which is generally being used by Firefox. Currently, 3% of the 3GB Swap are being used (some 80MB). I tried to change the swappiness like so: ...
0
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3answers
51 views

Can Red Hat and Ubuntu Share swap

I already have Red Hat installed. When I install Ubuntu, the swap area for the already-installed Red Hat was identified by the Ubuntu installer, and the default option is to "Use as: swap area". The ...
1
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1answer
70 views

How to re-setup swap partition in GPT system

I installed Ubuntu 14.04 as dual boot on my windows 8 acer desktop pc. I am sure I set up a swap drive but now if I do swapon -s I don't seem to have a swap partition. Upon sudo fdisk -l I get: ...
0
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0answers
29 views

Several gigabytes free RAM, so why is my swap file used? [duplicate]

This is a typical situation on my computer: I'm running a few different apps and a LOT of Chrome browser tabs. There are still three gigabytes free RAM on my system: I had expected my swap file to ...
1
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0answers
81 views

default ubuntustudio 15.04 install crypto passphrase works fine except for swap

I did a fresh install of ubuntustudio 15.04 (64b), with activated encryption. I sometime get a request to provide a passphrase for ubuntu--studio--vg-swap_1, for example if I execute sudo service ...