Ubuntu :: Inconsistent Reported Swap Size?
Jan 28, 2010
When I setup Intrepid (upgraded to Jaunty now), I chose to create a swap partition. I don't remember the size I specified. Here's what I'm confused about When I do 'cat /proc/meminfo' or 'free' or use the system monitor, it reports my swap size as 1262304 KB (i.e. 1.2GB). But if I do a 'fdisk -l', the partition size is reported as 746991 blocks (of 1024 bytes) and if I use the partition editor it says it's 729.48MB. XP disk mgmt shows it as app. 700MB too
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Apr 17, 2010
I have a 10GB IDE disk that Parted says has a single 10GB partition (/dev/sdb1) which is mounted at /home. However, df and the Gnome file managers see it only as a 3GB partition. It was a 3GB partition when I was using Fedora 9 but the partition was resized to 10GB during the installation of Fedora 11.Can anyone suggest how to make df and Gnome see it as a 10GB partition?
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Apr 7, 2011
My MP3 Player (Zen:Vision:M) has roughly 60 GB of space and yet Ubuntu insists only 3.6 GB is available. I know this is not true because in Windows the correct amount of room is displayed and can be filled up. Because my music collection is stored in my Linux partition I need to solve this issue if I'm going to actually use my MP3 Player. What is also interesting is the fact that the device doesn't show up in Gparted, System Monitor or fdisk.
When I attempt to look at the Zen's contents through Nautilus I get this message:
Error initializing camera: -1: Unspecified error
And when I update through Banshee every song gives an error of:
Argument cannot be null. Parameter name: obj
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May 25, 2011
Today, someone who had problems with his usb flash drive showed it to me. I plugged it in my linux box.
Code:
cat /proc/partitions
only showed
Code:
sdb
and no partition name (sdb1, etc.). So I ran fdisk on it I deleted all the partitions (4 in all) and recreated a single partition taking up the whole drive and marked it as c (win32 vfat) I exited fdisk (w) and formatted the new partition
[Code]...
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Jan 11, 2010
I removed an ntfs partition I had in my HD and then resized my home partition with gparted to occupy all the available space. The resulting partition is supposed to be 129GB, and gparted/partition magic see that size. But the system does not, and all tools report the old partition size and the same free space I had before resizing.
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Apr 25, 2010
I set my swap partition a bit high and now want to shrink it down and possibly merge it with one of my other partitions. I don't have dual boot, just have a second partition on the drive for data. Can I merge these easily?
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Aug 8, 2010
I am very much new user of ubuntu and hardly know anything about linux. What is swap memory? I have dual boot system with windows7 and ubuntu 9.04. My hard disk size is 320GB and RAM is 4GB. Currently swap memory size is 4.3GB. Can I increase swap size? Will it have any advantage? How to do that?
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Oct 7, 2010
I got back to my laptop after dinner and found a blank screen with one line of text saying something about running out of swap space - I tried all kinds of key combinations but nothing worked to bring the desktop back - eventually I pressed and held the power button to shut it down - I suppose this is Ubuntu's version of the "blue screen of death"?I went to System - Disk Utility to make a 2GB free space right after the swap space. Then I tried to make that 2GB free space a swap space partition but it came back with an error
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Oct 20, 2010
a possibly preposterous question. I am aware that you can designate a swap file or swap partition on your hard drive that linux uses as "memory". Suggested sizes for the swap file that I've seen range up to about 1024MB. Is there a limit to the swap file size that you can set?Basically I am running a perl script that processes a massive B) file (DNA sequence data), etc, and requires around 48 GB of memory to run, maybe a bit less. So, would it be possible to set a swap file to a massive, ridiculous size (~60GB oratever) and successfully run such a script on a desktop?Yes, I am aware that it would massively ow down the process. The thing is, if the perl script normally completes in about half an hour, and I can get it working on a desktop, I don't mind if it takes days or weeks to complete. I really don't. That's because it takes days or weeks to get access to a computer with the required grunt to do it.So, is this a stupid idea? Is it even possible? If so, given a perl script that normally completes in a half hour on a 48G system, if you do this, would it take days? weeks? decades
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Dec 26, 2010
I recently upgraded my laptop from 10.04, to 10.10. -- And in so doing reinstalled the OS from scratch, and letting the system pick the partition sizes.
Code:
My system:
2GB RAM
160 GB HDD
HP 6910p
Here's the question: The Installer set aside 6GB as Swap space, leaving 154GB as a / partition for everything. I had always thought 2GB was plenty, or as a general rule twice the Physical Memory size, which would only be 4GB swap, not 6.
Can / should I reclaim some of that swap space, if so how much. -- I can using tools like GParted to resize the partitions. -- Or just leave it as is. Unfortunately, the Ubuntu 10.10 installed did not seem to use GParted, so it was a little harder to set up initially.
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Nov 24, 2009
I am trying to increase my swap size because it seems to be getting full and making my server lock up.
I've tried this: [URL]
But all I get is this:
# lvm lvresize /dev/VolGroup00/LogVol01 -L +8000mb
Extending logical volume LogVol01 to 9.75 GB
Insufficient free space: 250 extents needed, but only 0 available
vgdisplay gives me:
[Code]....
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Jun 13, 2010
I am using Kubuntu Amd64 Lucid on my desktop and I have allocated 08.03 GB partition for swap. But today I have noticed that system monitor is showing this as 09.90GB which is incorrect.
I tried deactivating the swap from KDE Partition manager. Even after deactivating swap it still shows the swap as 1.9 GB. So there is clearly 1.9 GB swap added to my system. I am not sure how. Attached screen shot clearly shows the system monitor issue. One possibility is, I have 4 GB (3.7 asper system) RAM comprising two units of 2 GB cards. Is this 1.9 GB read from one of these? I tried to boot the system from Kubuntu AMD64 live CD and then it showed only 8 GB as expected. So not sure whats causing this issue in my installation.
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Jan 14, 2010
Should the swap file be as large as possible or as small as possible providing a person has 8GB of installed ram.
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Jun 6, 2010
I just installed Lubuntu 10.04 on old PC (CPU: 700 Mhz, RAM: 640 MB). My swap partition is only 474 MB. I was told it should be twice my RAM, if that's true then I'm really low on swap space. Can I expand my swap space? I also have Fedora 13 installed, it has a 1.3 GB swap partition, can I have Lubuntu use this partition?
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Jun 21, 2010
ecently I tried to increase the size of my swap partition using GParted, but it wouldn't let me. I wondering if there was another way? Currently it's 795 MB but I want it to be 1GB
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Sep 26, 2010
Currently running Slackware64 13.1 on a notebook and for the most part everything works fine. Only problem I am running into is with hibernation, where sometimes it will go into hibernation without a hitch and sometimes it will stall after blanking the screen and never turning off. For the most part pm-suspend.log looks fine every time, whether it goes into hibernation or not. My current system has 12GB of RAM and my swap partition is roughly 12GB. For the most part my RAM usage right before going into hibernation is always under 1.5GB with maybe 600MB floating in the swap partition. Could the size of my swap partition be too small even if RAM usage is nowhere near max?
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Oct 5, 2010
Need to increase swap size, currently on LVM2, does we can extended the lvm swap presented or need to create a new one. Which one is recomnded new lvm for swap or extend the lvm already exist ? Below are the swap exists in my server./dev/MU_PROJ/lv_SWAP swap swap pri=42 0 0
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Apr 30, 2016
I installed Debian 8 Jessie with full disk encryption and chose to have everything on the same partition. After install, I notice that my 8GB laptop has a 16GB swap. Is there a way to reduce the swap to 8GB (or maybe 4) whilst not affecting the encryption?
I have a 1TB HDD so space is not an issue but I dislike such waste. The setup used LVM.
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Aug 21, 2010
My laptop has 2Gb of ram, 4Gb of swap, 40Gb hdd and an intel pentium 1.40GHz cpu, even when compiling stuff or maxing out everything the 4Gb of swap is never touched, with such a small hdd I'd like to reduce the swap to about 2Gb (just in case) to free up some space, does anyone know what commands/tools are available to accomplish this?
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May 11, 2011
I know its a long shot, but still...
Is it possible to change size of boot and swap without doing a fresh install?
this is how my volume dist is like - root -30 gb, boot 200 mb, swap 8gb, home - 110 gb
my laptop is an amd turion dual core TL-58, with 2 gb ram and 160 gb hard disk...
and i want to change it to what is generally recommended ie boot to 500mb or 1 gb and swap to 4 gb..
the remaining can be added to home...
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Jan 13, 2010
want to install 11.2 version. my machine config is as belows. pentium 4 with 1.8 gz, 512 ram and 15 gb hard disk. i want to know what should be the partition size specially for swap, root ,home etc.and what version i.e genome or kde should i install.
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Jun 8, 2010
Wubi doesn't let me set the swap file size, so on installation it only creates a swap file of a few hundred megabytes. Because of this, i cannot hibernate my netbook (eeePC 1005HA), which has 2 GB of RAM.
Creating a 2 GB swap file alongside of the original one using the tutorial here did work, but hibernate doesn't seem to work with it. For this reason i thought increasing the original swap's size instead of creating more would be a way to solve my problem.
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Dec 7, 2010
Lucid on an Acer Travelmate800.Can anyone tell me why I have 0k for swap space? I allocated swap which I can see in my Disk Utility's 'volumes' display.
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Aug 16, 2010
RAM for older machines like I use is fairly cheap these days. But flash memory is just as cheap or cheaper. So I'd like to ask about the feasibility of expanding my system's memory using flash memory. And about whether creating a partition for swap on the flash memory, or whether a swap file on the flash device, is the better way to go.
By flash memory I have in mind mainly USB sticks or what are sometimes called "pen drives." But I do also have CF and SD cards that, with the proper cheap adapter (one of which I already own for adapting CF) could be used to create extra swap space. So, what is the current consensus on the feasibility/advisability of using flash memory for swap? I've read about the limited write cycles of flash being an argument against using it for swap. But recent reading indicates to me that the limited write cycles problem applies mostly to older, smaller-capacity flash memory. Some will come out and say that, for larger-capacity flash memory, the life of the device is likely to exceed the amount of time your current computer will be useful (I think I've seen estimates in the range of 3-4 years life--minimum--for newer, higher-capacity flash memory).
A more persuasive argument I've heard against using flash memory for swap is that access times for these devices can be much slower than SATA, and maybe even IDE, hard drives. That would certainly dictate against using flash memory for swap.
So, how about some input on this issue? Anyone using flash memory for swap? If so, what kind (e.g., usb stick or SD/CF)? Are you using a swap file or a swap partition? How's system performance? Likewise, has anyone had flash-memory-used-as-swap die on them? The consequences would undoubtedly be dire. Also, has anyone measured flash memory access times to confirm or refute claims about slow access times? Are some types of flash memory better/worse than others in terms of access times?
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Jul 7, 2010
I am running Ubuntu 10.04 64 bit desktop edition (on intel core 2 quad 8200, intel dg41ty motherboard, 2gb ram). My problem is that i installed screenlet and drapes wallpaper changer but every time i start my computer the drapes application failed to load and some of the screenlets also not start. In the panels the icons automatically changes their position and sometimes. i don't know what is the problem. Please help me because it is very annoying for me every time i start some screenlets manually and click on the drapes error.
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Mar 20, 2011
Does one need to Check the Swap filesystem, from time to time
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Sep 17, 2010
able to find anything on this particular issue. The problem I'm having is that the contrast ratio of text in firefox seems very inconsistent. For example: if I'm reading an article on NYtimes, from one paragraph to the next it looks like some sentences are in bold-face and others are not. If I refresh the page, it'll be different areas that are or aren't bf. Sometimes they even change (getting darker or lighter) as I'm sitting there reading. I tried to take a screenshot but unfortunately the text all becomes uniform as soon as I hit prt-scr so the image doesn't show the effect.
Another example is viewing my personal favorite forum where threads that I haven't read are in bf as opposed to those I have read which are normal. The problem is that when I do a mouse-over of the bf threads the font rendering becomes more greyed out. It's still bold-face, just not as dark.
A final example is in text-entry boxes. As I'm typing this right now the line I'm on looks normal but the paragraph above seems to go from regular to bold-face from one line to the next. The paragraph above that looks entirely bold-face...
It did occur to me that this could be a monitor issue or even a vid-card issue. But it's definitely not monitor because I can scroll the whole screen and the variation moves with the text... And it's not vid-card because I installed Chrome as a check and it doesn't have the same problem. None of the above symptoms carry over to that application.
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Oct 11, 2010
So, after the upgrade to 10.10, my bluetooth devices keep cutting in and out, and my Jabra bt125 won't connect to this computer. The Jabra won't even show up on btscanner or bluewho, but it will connect to my phone. The phone connects, but quickly disconnects. When left alone, the two will connect again! A friend's other headset connected, but had the same problems as the phone. That was an LG HBM-210. The signal was good for up to a minute, then down for at least a minute, over and over. Before the upgrade everything worked perfectly. What happened, or what did I forget to do? Might I have removed something critical when I switched Maverick 64-bit to the lubuntu package, and tried to remove some redundancies?
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Jul 18, 2011
Currently I have a HP G62 Laptop and it's been great but recently I've started getting really inconsistent wireless access. When I boot up the computer - it will connect to the wireless and work for awhile but 10-15 minutes later, websites stop loading entirely so I have to restart to get it to reconnect. If I don't restart and disconnect/reconnect... it doesn't do anything, it shows it trying to connect and then a weird "hiccup" happens and it tries again until it finally decides that it cannot connect. I'm running the latest version of Ubuntu I believe.
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Jun 4, 2011
I installed Ubuntu two ways, both by partitioning the hard drive and installing Ubuntu in its own partition, and also where the "run within Windows" option was available. I then upgraded both to Ubuntu 11.04. When I start Ubuntu in the "own partition" installation, Unity runs without complaint. When I start Ubuntu in the "run within Windows" installation, Unity baulks, giving an error message that I don't have some (unspecified) of the hardware it needs to run, and I am kicked back to the classic Ubuntu control screen setup. Obviously the two ways to install Ubuntu don't result in it having the same behavior. Alternately, since the version installed to "run within Windows" seems to do no such thing, and also gobbled up almost all the free space in my Windows-7 partition without prior warning, any clue how to uninstall that version cleanly?
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