Ubuntu :: Move Swap From Pendrive To HDD?
May 30, 2011
Just moved/reinstalled my HTPC setup (XBMC Live + extras) to a 8GB USB pendrive to simplify future reinstalls and upgrades. Everything works fine so far and I've not had any issues setting up everything for my needs. The system is very responsive in use in XBMC (and other) but slow down quite a bit occasionally when doing to much at the same time.
Since a USB pendrive have its limitations, a concern I have is regarding the swap partition that is currently on the pendrive. Should I move the swap to a swap partition on my HDD to ease the stress on the pendrive; and could I expect any gain in performance? I have 2GB of RAM.
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Apr 28, 2011
can you move your swap to a new location after a install and if it is possible will it give any kind of performance boost if it is moved to a separate hard drive? I did this on my XP machine and it made a pretty big difference in over all speed of the machine and wanted to try this on my Ubuntu machine, assuming it will even make and difference in performances.
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Dec 5, 2010
I love the way my Patriot Inferno SSD boots up. It takes about 13 seconds from GRUB to when I start to hear music... But I was wondering if I need my swap partition to be on the SSD, i.e. my spinning disk also has a S.P. I have 8GB RAM, so I don't know if I'm even writing to it.
Q9550, Palit GTX460-2GB, Evga 9800GT, 60GB inferno SSD, P5N-D, Zumax 650W, Unbuntu 10.10, and 11.04
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Feb 2, 2011
In our cluster, both the server and worker had been gone to swap and the performance is extremely slow. Although currently the memory is free but I don't know why the in the swap area is still being there and ubuntu doesn't move them to the memory and empty the swap.
On the other hand, when I run
Code:
sudo swapoff -a
on the server it says:
Code:
mahmood@server:~$ sudo swapoff -a
[Code]....
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May 24, 2010
I just got a new laptop and installed 11.1, and I want to move my swap file to a 8GB SD card I have. It seems to run very fast, so it will improve swapping speed. I created a swapfile with Partitioner, and I can delete the existing swapfile with GParted during a reboot - but I'm afraid I will make my system unbootable by doing that - don't I need to first tell OpenSuSE what swapfile (on the new sdb) to use? I'm pretty sure it will detect the new swapfile automatically during boot, but it might choke on a missing (old) swapfile.
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Apr 7, 2009
I currently have a server with the default VolGroup00 that contains logical volumes for the root file system and swap using logical volumes LogVol00 (root) and LogVol01 (swap.) I need to take space from LogVol00 and move it to LogVol01. I have found documentation for increasing the swap, and the resizing the logical volumes. However in the documentation and the man pages it says that I have to reduce the size of teh file system on the logical volume I am going to shrink. I have found documentation resizing the logical volumes but not the file systems.
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Oct 16, 2009
I'll start by explaining what my system layout currently is. I have Fedora 11 X64 installed on my system, it is an HP Dv9380ca laptop. My system has 2 hdd /dev/sda /dev/sdb. During the setup i set my home directory to reside on /dev/sdb. After booting i realized that my root and swap partition are part of a volume group name vg_sharpfed and are set in fstab as:
/dev/mapper/vg_sharpyfed-lv_root / ext4 defaults 1 1
/dev/mapper/vg_sharpyfed-lv_swap swap swap defaults 0 0
Output of Fdisk -l /dev/sda
Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x1aecda8d
[code]....
My /dev/sda2 partitions is 100gigs and set as an LVM. Essentially what i am getting at is, if it's possible to temporarily copy / /boot and swap to my second partition, edit grub if needed and fstab to mount to the temp locations, format sda to ext4 create partitions for / /boot and swap partitions, then copy back the original directories edit required fstab to mount the original locations and no longer have them contained in a Logical volume.
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Mar 13, 2011
So here is my situation..i was using win 7 and ubuntu 10.10 in my dell studio 1555. and i wanted to try out debian so i installed debian in my pendrive. so the grub was modified. when the computer starts it shows debian,ubuntu and win7 no problem.. but if i remove the pendrive, nothing comes up. it shows grub rescue>..
so now i cant start up unless i plug in the pendrive. what to do now to solve this problem?? i want to restore my grub to the previos state.
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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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Mar 20, 2011
Does one need to Check the Swap filesystem, from time to time
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Feb 19, 2010
I know it's possible, but does anyone have a URL or tutorial on how to do this?
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Sep 19, 2010
For Ubuntu 10.04 LTS / Gnome 2.30.2.
I have two applets on my Gnome panel -- NetworkManager Applet 0.8, and Klipper (it works better than Glipper) -- that I want to move.
HOWEVER, right-clicking the panel icons does not enable me to move these applets, as follows:
- NetworkManager Applet 0.8 does not include a Move item in its list of options.
- Klipper displays a long list of Klipper options but no Move option.
How I can move these items to new locations on the Gnome panel?
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Jan 24, 2011
Actually when I started format under ' FAT32 All Systems '.. it started and after some time it showed an error and close.. it pendrive unmouted automatically .. I tried with another USB port .. It didn't show up on desktop but there in my computer.. but its not opening there.. When I right clicked on it.. it not showing any options that a pendive icon usually shows like format..
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Mar 16, 2010
Today I am facing strange issue with my USB. I can't format my pendrive. Doing all possible commands it showing that the pendrive is write protected it cannot be fomatted
I have tried fdisk,cfdisk,gparted,dd, rm * etc pendrive is transcend 8 gib but it showing 530gib of size
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Feb 5, 2010
Can you install Ubuntu onto a USB PenDrive and then boot it on a PS2?.
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Apr 1, 2010
I have an 8gig mp3 player and I was wondering if it was possible to install Unbuntu on it, as if it were a bootable pen drive, without destroying it's ability to function as a stand alone mp3 player.
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Oct 28, 2010
I'm using xubuntu 10.10 on usb, and i compile a new kernel but just i cannot access it. If I used harddisk instead of usb, simply, i can select my new kernel version in grub screen. However, there is no grub when booting from usb. So i cannot any selection.how can i reach the new kernel, when using xubuntu on usb?
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Dec 6, 2010
I used to have Ubuntu 8.04 LTS on my old IBM Thinkpad R40e. I upgraded to 9.04 LTS and seem to have updated to the 10.04 LTS kernel - didn't know about that until now.
Recently I created an Ubuntu 10.10 Persistence Pendrive. I tried to readjust the booting sequence in order to boot from my USB stick Ubuntu 10.10. It somehow failed. - actually I know what to do in a BIOS
My computer still only boots via the harddisk - it does not boot via the Ubuntu-Pendrive nor does it boot if I insert an Ubuntu 10.10 CD. Further I cannot access my BIOS.
Is there any possibility to reset my BIOS manually - I know that some Dell computers have such an option? Any other way to update to Ubuntu 10.10.
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May 28, 2011
While installing Ubuntu from USB (made with usb-creator), I began getting errors such as 'ubi-timezone has failed with exit code 1', with a retry / continue / cancel option, finally getting 'Installer has failed with exit code 1'
Now when I try to run Ubuntu directly from the USB key, it won't start properly, giving errors about zero drive space.
I'm now unable to continue the installation or even use Ubuntu from the USB!
How I can fix this? At least, how can I remove whatever has filled up the USB so I can run from it?
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Jan 18, 2010
I have a machine which i have to test with a live version of ubuntu 9.10. I used a usb pendrive for some time but it failed after rebooting a few times. Now i try to install a live version on a external HD of 160 GB. I installed the ubuntu 9.10 with unetbootin on the external HD. When I boot from the HD I get the error: NTLDR is Missing. Is it possible to install of load the ubuntu 9.10 version on a external HD. I found some stuff about
- using another USB stick with the live version and install from that USB to the external HD.
- using the live cd to install. But I don't have a CD drive on the machine.
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Sep 17, 2010
i have a similar problem , i installed ubuntu 10.04 onto a pendrive, it all works fine , but the catch is i have to keep my pen drive inserted to get the grub menu. is there a work around to get grub to work off my hdd( my guess is it is in my pen drive along with the ubuntu files)
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Dec 15, 2010
I put Jolicloud on a pendrive to install it to my laptop, tried it out, didn't like it, and installed ubuntu with a CD instead. Now I want to use my pendrive for storage, so I popped it in, loaded up Gparted and formatted the drive.
Now, when I pop the pendrive into my laptop, Ubuntu thinks that Jolicloud is still on it, when Gparted says there are no partitions on the pendrive.
Screenshot:
How can I properly format the pendrive?
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Jun 22, 2010
I know this can be done with install-grub command in recent ubuntu release. How can i install it from puppy linux or distro which does not use grub 2. Will my pendrive boot if i copy /boot/grub from ubuntu 10.04 live cd to /boot/grub of my pendrive?
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Jan 29, 2011
Recently I switched to Ubuntu 10.10 Netbook edition in my Acer Aspire One D260, But now it's a major problem that how to locate and use my pendrive in it ?? I am sure that my Sandisk 8GB pendrive is showing there in the system storage options but I am getting it hard to use the same and currently unable to copy or paste data through the pendrive.
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Apr 12, 2011
When I am using some pendrives, I am unable to write (copy) anything into them and end up with some warnings like "read only mode". I tried to change its permissions using chmod also, but it is of no use.
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Apr 20, 2011
I have this motherboard, 4 GB pendrive, and i'm trying to boot USB Pendrive. I tried boot USB-HDD, USB-FDD, USB-ZIP and USB CD-ROM There are few other weird options as well. Now i'd like to ask, how shall i boot ubuntu on this motherboard?
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Jun 15, 2011
I have a Pen-drive which is affected by virus. I wish To format it, i tried to format it in GUI mode but i was unable to do so, then i tried to remove the files in pen drive by using rm command but an error msg that the file system has the read only permission so can't be deleted occur, then i tried to remove the read only permission by using chmod command but still the error that the file is read only permission was unable to change.
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Aug 14, 2011
cat /etc/fstab
mount
ps -A
ls -al /media/
dmesg
groupsfootnotes
My problem:
When plugging in a pen drive it will be automounted, but only root (who owns it) has write access to it. Other users only have write access. (Neither my user, nor an unmodified test user)
My aim:
I want to be able to write on my pendrive without any additional manual work after plugging it in (iirc that is default on a standard ubuntu install).
Possible causes:
I once had a time where I wanted everthing to be minimal. Might be, that I removed something in connection with my problem. I reinstalled everything that came to my mind and could be connected to that problem w/o success. I merely removed stuff than editing stuff (never touched /etc/fstab or /etc/udev/rules.d/*). S
So I think I am missing some kind of service, that manages my (user?) permissions or so.
I use:
Ubuntu 10.04 (initially a kubuntu but I remove nearly everything Qt/KDE stuff) fluxbox (but most gnome services are active).
I tried/checked:
check my automount setting[1] - did not change the behaviour
media_automount - is checked
media_automount_open - is checked
usbmount - is installedntfs-config - did not help (even after reboot)
manual mount[2] - worked, but i don't want to do that everytime I plug in a pendrive
gksudo users-admin (made sure that amongs others the following entries are checked)
Access external storage devices automatically
Administer the system
Mount user-space filesystems (FUSE)
I didn't try:
chmod - seems to be only used for ext* fs
edit /etc/fstab - seems not to be supposed for such variable things like pendrives
- changing file systems for same pendrive
- different number of pen drives
- every pendrive needs its own fstab entry
udev rules - I was told to write some, but I am reluctant because- I never did that before (so I also didn't mess them up)
Additional info:
Code:
benedict@box:~$ cat /etc/fstab
# /etc/fstab: static file system information.
# Use 'blkid -o value -s UUID' to print the universally unique identifier for a device; this may be used with UUID= as a more robust way to name devices that works even if disks are added and removed. See fstab(5).....
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Nov 17, 2010
I've recently been trying to install Kubuntu Live onto a pendrive but I'm having some problems. Situation is as so:- Installed Kubuntu 10.10 desktop to 4Gb pendrive via Universal installer 1.8.1.2, with 2Gb allocated persistence.
- Reboot PC, boot from USB into Kubuntu, no problems.
- Configure WiFi connection.
- Reboot.
- Error: NTLDR is missing
I've tried this several times, always with the same result. As soon as I reboot, boot loader appears to be missing. I've read here:[URL].. that there are problems with syslinux and Ubuntu's version and wondered if this was the problem, but plenty of people appear to be running with this setup.
Does anyone have any ideas what may be the problem (and apologies if this has already been asked, I'm struggling to find anything pertinent.) For info, the pendrive I'm using has a small partition that acts as a floppy drive, could this have any influence?
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