Ubuntu Installation :: Swap Disk Not Being Used?
Mar 25, 2011am using 10.10 maverick and after installing ubuntu on an 8gig sd card the swap partition (1.55 gigs) is not being used, i am not sure what to do
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Ubuntu Installation :: Delete The Ext And Swap Partitions From Disk Management On Windows7?
Oct 11, 2010Can I delete the ext and swap partitions from disk management on windows 7 ? Because I want to install a fresh new copy of ubuntu 10.10 . I know it would affect windows 7 boot up.I can handle it by system restore Anyway can I do it or not ?
View 5 Replies View RelatedUbuntu :: Encrypted Swap And Suspend-to-disk
Feb 15, 2010I have installed ubuntu via the alternate installer, activating encrypted home directories, which in turn enabled to have encrypted swap partitions and disabled hibernation (suspend-to-disk). I understand the arguments for having an encrypted swapspace in these cases. However, I'd like to be nevertheless able to hibernate. Now that the system is already set up, I cannot change and completely encrypt my harddisk via LUKS+LVM as it is suggested in numerous places.Instead, I tried the following. I created two swap partitions (sda7 and sda: one being encrypted via cryptsetup, to be used as a 'real' swap (sda7). Another without encryption, which is not listed in /etc/fstab, so that it is not normally used by the system. I have then configured uswsusp in order to use sda8 as a resume partition:
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I have decided to encrypt the resume image - I don't care entering a password once every time I resume, it just shouldn't be at every boot. And this way, I can have hibernation without the uncomfortable solution of having my decrypted, open files on the disk as clear text. However, as sda8 is not 'mounted' when I want to suspend, I get the following error:
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When I try to suspend now, it works. The image seems to get correctly written to sda8. However, on reboot, the image does not seem to be detected and the system is not resuming. I end up with a fresh login screen. would be also to unmount sda8 upon resume, is this better done by entering a hook in /etc/pm/sleep.d or can I just continue in the wrapper script above by executing s2disk.unwrapped only by calling it (without 'exec'), and entering a swapoff line behind it?
General :: Ubuntu - Change Swap Disk Priority Permanently?
Aug 8, 2010I'm using two swap disks. Changing the order they are in in /etc/fstab and using "pri" in fstab doesn't have any effect. This is what it looks like /etc/fstab
#swap on other disk
UUID=90a1550c-84d6-4bde-8bc1-7c15292980f1 none swap sw,pri=-1 0 0
#swap on same disk
UUID=13b70e65-f1c3-4728-920f-9e92467d1df0 none swap sw,pri=-2 0 0
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Its opposite of what it is in fstab, and changes to fstab have no effect.
Security :: Encrypt Swap Disk Partition?
Apr 5, 2011Is it better to use:
Code: -c aes-cbc-essiv -y -s 512 Or:
Code: -c aes-xts-plain -y -s 512
I've never encrypted a disk before; I'm following the Arch wiki (I'm a newbie, basically). Should I try and encrypt my swap partition (I've got 512 MB RAM, 1 GB swap)? Ideally, I'd like to make it so it's not feasible for someone (even a very skilled someone) to access my files (and system -- I'm encrypting /), but still make it fairly fast and usable for day-to-day operations. If it matters any, I'm using JFS.
General :: Swap Partition To The Back Of The Disk By Default?
Sep 8, 2011As far as I know hard drives are faster at the beginning of the disk. If this is true, why does Ubuntu put the swap partition to the back of the disk by default?
View 1 Replies View RelatedSoftware :: Is It Feasible To Use Entire Disk As Swap Space?
Aug 31, 2009Has anyone configured a linux installation using an entire disk as swap space? I'm thinking about doing this with one or two 250G hard drives. We are experimenting with very large swap space.I would think that would be feasible, and actually faster with more disks. But I've never tried it.
View 2 Replies View RelatedGeneral :: Set The Limits For Unlimited Virtual Memory With Limited Ram And Swap Space On Disk??
Apr 6, 2010clarify me with ulimit output and memory limit?
ulimit -a output:
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) 1572864
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Ubuntu :: Delete Snow Leopard Partition - Format Swap Disk Partition To Something Else
Feb 23, 2011I had a drive with a partition layout like so:
~50gig Windows 7 - NTFS
~100gig Ubuntu - EXT3
~100gig Snow Leopard - HFS+
~100gig Extended Partition
-- ~100gig Swap Disk - exFat
I wanted to delete the Snow Leopard partition and format the Swap Disk partition to something else. exFat was causing major file size bloat on small files. QT sdk bloated to like 11 gigs or something ridiculous like that. Anyways, I loaded up an Ubuntu 10.04 LTS live cd and gparted then deleted the Snow Leopard partition. Gparted said "Mission Accomplished" and tried to rescan the drive, but never found it. At this point I restarted the computer, a dell laptop, which didn't boot with an unable to find a bootable device error. The ubuntu live cd doesn't see the drive anymore. gparted scans for drives indefinitely and fdisk -l has no output.
Ubuntu :: Long Disk-activity-pause On Boot - Between Mounting Root And Mounting Swap?
Jul 14, 2011Just the last day or so, I've noticed a long pause when I boot my laptop, with lots of disk activity. dmesg says:
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Why would there be a 15-second pause (during which the disk is slammed) between mounting root and mounting swap? During this time I see nothing but a blank purple screen, there are no cycling dots or text scroll. Is this normal and I'm just freaking out over nothing because there's no indicator of progress? GRUB default boot options: quiet splash nomodeset video=uvesafb:mode_option=1920x1200-24,mtrr=3,scroll=ywrap vt.handoff=7
Ubuntu :: Swap Space Shows 0k But Have Volume Formatted As Swap
Dec 7, 2010Lucid 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.
View 5 Replies View RelatedUbuntu :: Swap Or Swap File On Flash Memory?
Aug 16, 2010RAM 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?
OpenSUSE Install :: Swap Partition : Need To Check Swap File System?
Mar 20, 2011Does one need to Check the Swap filesystem, from time to time
View 4 Replies View RelatedUbuntu Installation :: 10.04 Installation Fails - Swap Does Not Mount
Sep 19, 2010I had a problem with the install of Ubuntu 10.04 and 10.04.1 on a Dell Precision T3500. I used the 32bit live CD. I let the installer create the file systems and use the whole disc. The disc is was created as shown below. After the install button was pressed, the root file system was created and then the swap. When the installer went to mount the swap it complained there was not enough memory and failed the installation. I installed Ubuntu by manually making the swap file system smaller using gparted and assigning the / and swap to the file systems created by gparted.
Disk /dev/sda: 250.0 GB, 250000000000 bytes
255 heads, 63 sectors/track, 30394 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
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Ubuntu Installation :: Allocate Swap Area After Installation ?
Apr 16, 2011can i allocate swap area after installation? can i do this?
View 6 Replies View RelatedGeneral :: Use Windows Pagefile.sys (swap) As Swap?
Feb 19, 2010I know it's possible, but does anyone have a URL or tutorial on how to do this?
View 3 Replies View RelatedUbuntu Installation :: 9.10 - Non-system Disk Or Disk Error With Manual Partitions
Apr 9, 2010This is the third 9.10 install to do this on two different laptops, so wondering what's up...
In both cases, the goal was to leave a large chunk of unpartitioned disk after the Ubuntu partitions, for a second OS install or a filesystem Ubuntu cannot create like NTFS.
When I install with manual partitions, the system can't boot and asks for me to insert a system disk and press any key. When I reinstall telling Ubuntu to "use the entire disk" it then works.
First laptop, first try:
Remainder of the 500GB disk is free space.
Fails to boot, "insert system disk".
First laptop, second try without the /boot partition:
Remainder of the 500GB disk is free space.
Fails to boot, "insert system disk".
"use entire disk" works perfectly.
Second laptop, first try:
Same thing, non-system disk or disk error, insert system disk.
Second try "use entire disk" is currently in progress but I expect the same to happen.
Ubuntu Installation :: Error "pyrun.exe - No Disk There Is No Disk In The Drive
Jun 14, 2011I downloaded the latest version of wubi and when I click to run i get the error "pyrun.exe - No Disk. There is no disk in the drive. insert a disk into drive DeviceHarddisk2DR2".
View 2 Replies View RelatedUbuntu Installation :: Unplug Disk, Can't Boot Winxp Disk?
Aug 22, 2010WinXp sp3 is on disk sdb, then installed Ubuntu 10.04 on sda, can go into diff OS without any problem. I am going to move sda to another machine, when I unplug sda, WinXp can't start to boot on sdb. How to fix it?below is my case output$ sudo fdisk -l
Disk /dev/sda: 160.0 GB
...
Device Boot Start End Blocks Id System
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Ubuntu Installation :: Migrate Working Single Disk System To Existing RAID Array Using Disk UUIDs
Aug 1, 2010I had done a new lucid install to a 1 TB RAID 1 array using the alternate CD a few weeks back. I messed up that system trying to some hardware working that lucid doesn't have drivers for yet, so I gave up on it and reinstalled to a single 80 GB disk that I now want to move over to the RAID array.
I moved all of the existing files on the array to a single folder, then copied all of the folders from the 80 GB disk over to the array with permissions and symlinks (minus the contents of /proc and /sys, which I created empty).
These are the commands I used:
Quote:
p -a -d -R -v -t /media/raid_array /b*
cp -a -d -R -v -t /media/raid_array /d*
cp -a -d -R -v -t /media/raid_array /e*
cp -a -d -R -v -t /media/raid_array /h*
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I tried to change fstab to use the 689a... for root, but when I try to boot, it's still trying to open /dev/disk/by-uuid/412d...
So then I booted from the single disk again and chrooted into the array, then ran update-initramfs -u. I got 3 "grep: /proc/modules: No such file or directory" errors, and "cat: /proc/cmdline: No such file or directory"- so I created directory /proc/modules, created an empty file /proc/cmdline, and ran the initramfs update again. Then I tried to shut down, which hung (probably because I was doing all of this from a terminal window in Gnome), so I killed the power after a couple of minutes.
It's still trying to use /dev/disk/by-uuid/412d... to boot.
What am I missing? I assume I just have to change the UUID to mount as root, but I don't know how.
Ubuntu Installation :: Use Ram Instead Of Disk - Write To Disk At Shutdown
Mar 21, 2011I have a netbook I'm not using and which I transformed into a server with Apache, Tomcat6, Netatalk, Webmin, BIND9 and Tor.
Problem is, the disks never stop spinning because all of the programs write a few kb at least every few seconds to disk, even when nobody is connected to it.
My question is: Is there a way to have the computer boot from disk like normal (maybe even a squashfs), keep ALL CHANGES to ram and then save to disk when either the ram is full (unlikely because the server is rebooted every few days) or at shutdown?
I thought about a mixture of ramfs and unionfs but I'm not good enough yet...
Ubuntu Installation :: Swap Old One Out For A Larger One?
Jun 8, 2010i can just swap my old one out for a larger one?
View 7 Replies View RelatedUbuntu Installation :: Swap The Internal HD Out To A New System?
Jan 29, 2010I have an existing Ubunto 9.10 install sitting on a 500 GB SATA drive that was sitting in my second SATA port. I'm trying to swap the internal HD out to a new system that has a 500 GB SATA drive with Windows 7 on it as the primary drive, in SATA port 0. When I configure BIOS to boot from my Ubuntu drive, I just get a flashing cursor on the screen and no Grub bootloader like I was before.
Does this mean Grub isn't on my Ubuntu drive? Should I install grub on both my Ubuntu drive's MBR AND my primary Windows 7 drive's MBR, or only one of the other. The instructions I've been reading don't specify which drive to reinstall Grub on and which drive I should boot from, so I'm confused. How do I get it so that Grub acknowledges my Windows 7 install on the primary drive?
Ubuntu Installation :: Swap File Onto New Extended HD?
Feb 1, 2010I want to move my swap file onto a new extended hard drive.
Device Boot Start End Blocks Id System
/dev/sda1 * 1 1243 9984366 83 Linux
/dev/sda2 1244 1305 498015 5 Extended
/dev/sda5 1244 1305 497983+ 82 Linux swap / Solaris
I want to put a 2Gb swap file on sda2.
> dd if=/dev/sda2 of=/mnt/2Gb.swap bs=1M count=2048
0+1 records in
0+1 records out
1024 bytes (1.0 kB) copied, 0.000388458 s, 2.6 MB/s
Why is this only copying 1.0kB? Do I need to format the extended drive first? I have tried specifying the block size and count a number of different ways with the same results.
Ubuntu Installation :: Using FAT32 Partition As Swap?
Apr 5, 2010I'm installing a new SSD this upcoming weekend. My thought was to go easy on it so it lasts longer by putting my swap files on a mechanical drive instead of the SSD. I don't - however - want to waste space for swap files. It would be nice if I could use the same 6GB FAT32 partition for swap files for both Windows 7 and Ubuntu. Is this possible? It might not even be necessary though, I have enough RAM that I rarely use the swap file at all (I've even considered going without swap all together), so it probably won't pose a huge load to the drive.
View 9 Replies View RelatedUbuntu Installation :: Swap Partition Locked?
Aug 3, 2010I have Ubuntu 10.04 installed. When I run Ubuntu 10.04 LiveCD and I start GParted I see that there is a "key" on my swap partition marking it as locked I guess. When I right click, I cannot select "Delete" option. What does this mean? What if I want to rearange my partitions sizes including swap partition for whatever reason?
View 1 Replies View RelatedUbuntu Installation :: Getting Raid 0 Motherboard Swap?
Sep 10, 2010i just got a new motherboard for a router/server at home i got something beefier, the deal is that the raid 0 i've got running on the old chipset is running ubuntu desktop edition and i just wanna install the server edition on the new beefier board, i've a /home partition in the raid if i swap the boards will that crap out what i've got in my /home dir... or can i just swap the boards and make a fresh install on a root partition without messing up my /home partition?
View 2 Replies View RelatedUbuntu Installation :: Why Does 10.10 Have 'Swap Area' Configuration
Oct 12, 2010I was so excited that finally I can get the newest version of Ubuntu installed on my computer. Yesterday I downloaded the iso file and emptied my F:/ disk, hoping I can install it this morning. Everything was perfect until I met 'swap area'. I thought it was just that the installing program needed some free space during the process. Storage hierarchy, caching, something like that. So I configured my E:/ disk as the 'swap area'.
Bad decision! After everything was done, I rebooted ubuntu, only finding that my E:/ no longer existed!!!! I couldn't believe my eyes, so I rebooted back to Win7. E:/ disk wasn't there any more! Now I have to accept the bitter truth. All my journals, photos, and documents are ruined. My point is that: if something like 'swap area' is not so common sense to everybody, why does it have to be there? And if it will format that disk, why aren't I noticed? Not so long ago, I heard some one claimed that the ubuntu10.10 installing process would be revolutionized, much more user-friendly. Well, this is not what I've expected.
Ubuntu :: New Swap Area - Installation And Upgrades?
Feb 10, 2011I need to reinstall Ubuntu, problem is, I don't know if I need a new swap area to replace the old one or just check the old one to be formatted. Or do I just leave it as it is and after installation Ubuntu will make use of it? Couldn't decide if this should go in "Installation & Upgrades" or "General Help" since it's a bit of both.
View 4 Replies View RelatedUbuntu Installation :: Add Swap Partition Without Reinstallation
Apr 9, 2011I'm using ubuntu 10.04 and it seems that I forgot to set up a swap partition when I installed my system. So, I can't install hibernate, and I don't think I have any virtual memory any more.
I know that I can always set up a swap file to play the same role, but since swap file is not contiguously stored on hard disk, the performance is expected to be worse than a swap partition.
So, how can I add a swap partition and make my system boot with it every time from now on? I have unused space on my hard disk, and re-installation is NOT an option.
