OpenSUSE Install :: Move Swap File To A 8GB SD Card?
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.
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.
When I try to "Move to Trash" any file, a message say that Dolphin can't move the file to trash because it's full, but trash is empty. I'm running openSuse 11.4.
I think this function (Move to Trash) was working fine this morning. What it happened?... Maybe "Move to Trash" files in a pen drive was the cause of the problem.
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.
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.
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?
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
I made a mistake and during the setup created a seperate swap partition and noticed that using this on a usbstick hindered performance. So I want to simply add the swap to the same partition as root and the others. I used this ubuntu help file. Will this suffice:
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
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:
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.
I just installed the latest version of opensuse and I just put the RAM and SWAP widget on. I can see the ram meter is working fine but the swap space is always 0. How do I activate the swap so it starts using that space?
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.
I got a new laptop, a Dell D400. I want to swap my hard-drive from my old laptop into the new one, and did so... but then got an error stating that my CPU didn't support PAE.
As far as I was aware I hadn't actually installed a kernel with PAE enabled [as I always pick a real-time kernel for audio work]: but then read that lots of the newer distibutions are enabling PAE by default [which is what's caused the problem].
Is there an easy way of disabling PAE in the existing kernel? Or would it be easier to downgrade to another version of OpenSUSE? I'm on 11.2.
This is the 1st time I am installing SUSE and I wanted to clear some of my doubts:I have the following computer specs:Core i32 GB RAM320 GB HDDATI Mobility Radeon 43301. Is creating a swap partition necessary while installing Suse 11.2?2. Will I be able to install 64-bit version of Suse on my computer?3. Will I be able to run Windows 7 side by side?4. Will I have any compatibility issues with my Display Adapter since I have had problems previously on Ubuntu with my onboard ATi Graphics..
I found what I believe to be odd behavior on an OpenSuSE 11.0 computer today. I needed to add some disk space on one of our computers and here is what I did: This computer had a separate disk for swap space so I deactivated swap (swapoff -a) and then removed the swap entry from /etc/fstab. I then shut down the computer and replaced what was a single disk used only for swap with a RAID1 hardware mirror.
I then booted the system and added a swap partition and another file system on the new RAID1 volume. Even after activating the new swap space with swap on, no swap ever seems to be actually allocated. The swap space shows up in top, free, "swap -s" and vmstat, but never gets used. I realize that a reboot will result in the swap being used, but is there anyway to get the kernel to use the swap without a reboot.
It's probably worth noting that I verified this behavior on a second computer. That is I turned off swap, removed the swap entry in /etc/fstab and then rebooted. Swap is never actually allocated until a second reboot. By the way, this was discovered when some of our users attempted to run java on the system where I did the first work and they got:
prompt> java -version Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine.
Yesterday, java was working fine and I got the same results on my test computer. Is this a kernel bug or just odd behavior?
Saw a reference to putting the swap partition on a separate drive--just minutes after I was considering that approach. Can't find anything recent on the topic, so asking: Is there an advantage to having /swap on a separate HD from data on /home? My thought was that both disks could be active at once, perhaps speeding up a busy application.
Will the above procedure accomplish this objective, without crippling openSUSE ? The second swap partition has never shown any activity (on SUSE). I understand (from Using shared swap files) that a single swap partition may be shared. Since these areas are relatively small, It is not inconvenient to maintain separate swap partitions.
i have a little experience with ubuntu but i have had bugs that are not resolvable at this time in ubuntu. so instead of giving wild bill back my pc i am looking for a new distro. my concerns with ubuntu revolve around acpi. no fan control and high temp. the 2nd problem that is almost overlookable is the ata1 softreset error. it usually is no problem but occasionally have to do manual fsck to fix. so heres my laptop specs. toshiba a305d-s6848. amd turion x2 ati x1250 integrated. 3gb ram. 500gb hd vista and ubuntu 9.04 dual boot grub with 100gb ubuntu and the rest vista. so q1= what suse version would be best?
q2= is suse's acpi better? ubuntu runs all features but fan control q3= is suse as easy to install? or harder q4= ati graphics i know for my card went to legacy what version still has the ati drivers for my card q5= is suse easier or harder to work with and get everything working.
i know no linux is or opsys is perfect. im just looking for one that is stable and works the pc correctly. i know its a big thing to ask. i know no one can tell me that. but just looking for suggestions. im thinking of downloading suse and does all the downloads support live sessions.
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.
since i did a system update followed by install of akonadi and after a second reboot i'm getting a kernel segmentation fault. i've tried repairing the installed system and i've tried doing a fresh install but all to no avail.
I've moved an OpenSUSE disk image to a new system and it boots fine to console mode. Is there a command I can run to re-detect and set all of my hardware settings (video in particular)? I've seen some references to running hwinfo on an individual object basis.
I am using openSUSE 11.1. I recently installed an additional hard drive since running out of space. New drive up and running, used Yast Partitioner successfully.
2 questions as follows:
1) New drive still has Windows XP on one of its partitions..Can I easily implement/set up for dual boot?
2) More importantly, I need to move root ("/") of file system to new drive "sdb" since more space available but not certain correct way to do this
I had a Win7 laptop with Win7 installed on the single internal drive. Attached to this is an eSata external drive.I installed Suse on the external drive. The install is good. I have enabled the Win7 OS in GRUB.When the eSata is plugged in I am able to boot and choose which OS I want.When the eSata is unplugged, the boot fails with the following message:
I assume, what I need to do is to move the GRUB install to my internal drive.How do I do this? Indeed can I do this?Or can I re-enable the Microsoft BootLoader and tell this bootloader to load either OS?
I'm trying opensuse 11.2 KDE out again after a bad experience last year. I'm installing it over Fedora 12 and when I try to install I get this error: Failure occured during following action: Deleting logical volume /dev/VolGroup/lv swap system error 4015 What does this mean? I've had other problems with with distro in the past but never this one. what is needed to enable the installer to install?
I'm a "new" Linux user, have been using Ubuntu for the last year with no problem but I decided to try out a different distribution to get more experience. So I decided to go with openSUSE (which I have been using on a VirtualMachine back at work). I have download the ISO, created an liveUSB (because my laptop dvd isn't working properly) and wanted to install openSUSE on the hard drive partition where currently Ubuntu is. So, I suppose that in order to do this I should choose the option "Import mount points" and select the Linux partitions (drive and swap) and that would be it.
Not sure if I have landed in right place for this question .Problem FacedI have 30-40 heavy load (Memory operations on heap) processor running with each having 30-40 threads.In one of the thread (of each process), I have file locking operation as explained below (say in thread T1)Step 1 - Lock the file using fcntl(SETWLK) on file f1, Basically using wait lock.Step 2 - Read/write data from another file f2.Step 3 - unlock the file f1.As the memory occupied by process increased, the swap area used will reduce - this continues for a long amount of period. When the free swap space is reduced to 100 MB free out of 2 G and VIRT reduces to 120MB free out of 17G, for T1 thread, Step 3 is not scheduled for more than 300 seconds after Step 1 and 2.
I want to understand why this behavior is present - as per my understanding scheduling will occur within micro-seconds and we can expect that the T1 thread of all process should be scheduled without too much delay.Additional InfomationMachine Info : (uname -a), Linux linux 2.6.16.46-0.12-smp#1 SMP Thu May 17 14:00:09 UTC 2007 x86_64 x86_64 GNU/LinuxMemory Info :Total Memory is 16GB + Swap Memory is 2GBI want to know why this behavior is observed in SUSE
I came in this morning only to find that the Intel Core2 hyperthreading Dell machine is dead. It appears the processor is fried.
I have a new white-box X2 system that I will replace the dead Dell with. The X2 (AMD) does not have a hard-drive (HDD) so, I will simply put the SATA hard-drive into the PC.
Some of you may know how to do this, but I don't know where to begin after I get the Hard-drive in. (I know how to move a Windows configuration from one PC to another and handle it as it begins to blue screen (BSOD), but I don't have a clue with Linux)
This system was built with GRUB. At the very least, I expect the GRUB boot managet to surface on the display. But, what next....
I was testing an OpenSuse setup as a server. Nothing fancy and NO applications added. The only customization was the MB's LAN card and the display was set at 1024x768. I had 2 users, root and myself. What would you do? Is there some boot time options that I should follow?
