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• How to disable low disk space notification? (Gnome 3, Ubuntu 12.04)

  - by grimripper

  I've got an SSD drive for root and /home, and a larger HDD for storage. The storage disk is almost full, and there's a low disk space warning on startup. The warning doesn't have any "don't show again" option, only "ignore" and "examine". It also doesn't go away but sticks on the screen until the ignore button is clicked, so it's very annoying in addition to being competely unnecessary. I tried unselecting the storage HDD in baobab's settings, but that didn't have any effect. I also tried gconf-editor, and looked for apps - gnome_settings_daemon - plugins - housekeeping, but there is no "plugins" under "gnome_settings_daemon". Only "gtk-modules" and "keybindings". Gnome 3.4.2.1 Ubuntu 12.04.1 LTS 64-bit

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• DosBox Booting From HDD Image, FreeDOS Image created with qemu-img.

  - by TechZilla

  I'm having trouble booting a HDD image with DosBox. I've only gotten either read errors, or boot failures. The HDD image is a verified working FreeDOS installation, created with qemu-img. The image has been formatted FAT32, and it's working as expected with QEMU. The Image is only 1G in size, and is a flat raw image. I have been able to mount it with Linux, for ease of file transfer. I even was able to boot with DOSEMU, After I mounted the image under Linux. I would love to somehow just boot from the raw image file, but I would have no problem booting from a mount. I just can't get anything to happen, and I have read the Documents over. I have verified DosBox is working as expected, with its included DOSlike environment. I would appreciate any help, as I just don't have much of DosBox experience.

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• Virtualbox VM (spawned by Vagrant) running but inaccessible. What now?

  - by Matt V.

  I have a Virtualbox VM running Ubuntu that was started by Vagrant. At some point my ssh session connected to the guest stopped responding. I tried "vagrant halt" from a terminal window on the host (OS X). The shutdown process seemed to also hang. Shutting down the Oracle VM VirtualBox Manager doesn't shut down the VMs themselves. Is there a way in either Vagrant or VirtualBox to force the running VM to shutdown? When running desktop guest OSes, closing the GUI window presents several options for shutting down the guest, but I don't know how to do the equivalent when the guest is running headless.

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• Need to reformat SQL Cluster Disk. How do I recover my SQL installation?

  - by I.T. Support

  We need to reformat the SQL cluster disk in our SQL cluster. The drive contains the shared installation files for SQL as well as databases. My concern is how SQL/The Cluster will react to after we wipe the disk resource. Questions: Is there a defined procedure for this? How should we backup and restore the disk? After the reformat, how do we get the clustered SQL server back online? Thanks

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• Find largest directories/files recursively

  - by Robert Munteanu

  I'm looking for a script/program which will display the top x largest directories/files and then descend into those folders and display the x largest directories/files for a configurable depth. 231MB bin - 220MB ls - 190MB dir - 15MB def - 3MB lpr - 10MB asd - 1MB link How can I do that?

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• Encrypted partitions with redundancy on ubuntu server

  - by Flamewires

  Hey I have to make a file system with an encrypted partition with on ubuntu server. something like Unencrypted: / - 10 GB /home - 10GB /var - 5GB -------------- Encrypted: /opt - 50GB This I can figure out in the setup, just partition as normal, setup /tmp as a encrypted volume with dm-crypt. However im not sure how to mirror this entire drive, so that if either failed i could still boot. and how will that affect the encrypted partition. Any help would be appreciated.

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• How can I increase the size of the hard disk used by my Virtual Machine Manager (VMM) vm?

  - by Scott Langham

  In Virtual Machine Manager admin console, I used the 'New virtual machine' wizard and created a machine from an existing template. When I got to the Configure Hardware step, I selected the primary hard disk (which is a dynamic) disk and tried to increase it's maximum size, but this control is disabled so I can't increase it. It's not big enough for my purposes. how do I increase the maximum size of the hard-disk? Thanks. Edit: I am able to add a second hard disk of a size I specify. That's not useful though as I'm trying to install some software, some of which insists on being on drive C.

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• What is the best way to setup a heartbeat agent for failover between two VMs?

  - by EGr

  I have two VMs in VirtualBox that use NAT for their network adapters. They are both getting the same IP address, so I will need to reconfigure that; but knowing that, is it possible to set up a heartbeat agent to failover an apache server if one of the two VMs go down? The way I pictured it would be that the webserver would be able to be accessed externally via :80. No matter what VM was running, I would be able to access the website at that IP/port since failover would be setup. I'm running into trouble setting up IPs when the network adapters are set to NAT, and people have told me that I shouldn't be setting the IPs in this configuration. So what should I do to achieve what I'm looking for? Is it even feasible?

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• Is anyone working on an encfs client for windows?

  - by snth

  I've been looking into encfs as a solution to encrypt my personal data. However I want to access this data both on Linux and Windows on different machines (synced through Dropbox). So far all Google searches have brought up pages which specify that there is no Windows client that reads encfs. Therefore my question is: is anyone working on a Windows client for encfs? It would be really useful if someone was and it seems to be a common enough issue raised that I have a glimmer of hope that someone might be working on it.

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• How to tell Linux to explicitly swap out main memory of suspended process?

  - by Vi

  I run a memory-hungry process (mkcromfs) which consumes more memory than I have physical memory on my latop, so it is paging and swappin and thrashing all the time and loadavg is about 2 (compcache is already in use with usual swap partition as well), but slowly moving forward (Although I afraid it will finally try to allocate 2GB and crash draining 2 days of thrashing). When I want to use the laptop for something else, I stop the process, start X server, firefox and other programs. The problem is that when I start Firefox the loadavg jumps to 10 and the system becomes almost unresponsive at all (long time to turn on/off caps lock, slow mouse cursor position updates, slow switching from X server to Linux console, slow login). The stopped mkcromfs still holds a lot of memory (464.8 MiB and slowly falling) and moves it to swap only when more memory is needed for some other program, which results in a great slowdown. How to tell the Linux to swap out this process entirely (e.g. I'm not intending to resume it in short term), possibly waking from swap other data? Also it will be useful to be able to specify the exact swap device to swap the given process out.

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• Get extra hard drive space from windows 7

  - by abhinole

  I am using Ubuntu 12.04 and Windows 7 (dual-boot) on my laptop.For some reasons I want some more space in my Ubuntu partition.I have installed gParted in Ubuntu.Now is it recommended to get this required extra space from Windows 7 drive (*where my linux is installed *) directly using gParted? Will it cause damage to my boot loader or my data on the partition from where I wish to grab some space? Any help will be appreciated. Thanks in advance.

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• USB Drive cannot detect in Windows 7

  - by Perdana Putra

  Have you ever plugged in a USB drive or any external device with a hard drive and wondered why you cannot see it in My Computer? I often have, I believe my USB is not broke .. because if I plugin the USB to another computer could be seen / detected. I tried following this tutorial http://www.howtogeek.com/howto/22251/find-your-missing-usb-drive-in-windows-7-vista/ but I am afraid of going wrong, and caused my data is lost. is there any easy way around this problem? many thank's for your attentions Guys ..

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• DIsable my nv video card driver in linux

  - by Dahaka Wang

  I'm trying to passthrough my nv video card to my domU, but I could not bind my video card to the pciback driver I only have one video card with the pci number 0000:03:00.0, so I used the following command echo -n "0000:03:00.0" > /sys/bus/pci/drivers/nouveau/bind to unbind the nouveau driver from my video card. The screen went black because I have forcefully removed the video driver, therefore I ssh'd into the computer to run further commands I ran: echo -n "0000:03:00.0" > /sys/bus/pci/drivers/pciback/bind to try to bind it to my pciback driver, but I got: bash: echo: write error: No such device I found out that this was the message shown when trying to bind a PCI device which is already bound. Therefore, I think that something was still using my video card Can anyone help me out? Thanks a lot!

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• Proxmox: VMs and different public IPs

  - by Raj

  I have a server which has two NICs and both are directly connected to internet. I have five different public IP addresses available for the VMs. The host machine (Proxmox) doesn't need to use any (it'll use a private IP and that's all) but will have internet connection. I've gone through the Proxmox documentation and I'm not able to understand the big picture to set up the right network configuration for my needs. In short, what I have is: One server (Proxmox, host machine) On that server, 5 VMs are created 5 public IP addresses available (one for each VM), let's say: 80.123.21.1, 80.123.21.2, 80.123.21.3, 80.123.21.4, 80.123.21.5 What I have now for the host is the following: auto lo iface lo inet loopback auto eth0 iface eth0 inet manual auto eth1 iface eth1 inet manual auto vmbr0 iface vmbr0 inet static address 192.168.1.101 netmask 255.255.255.0 bridge_ports eth0 bridge_stp off bridge_fd 0 auto vmbr1 iface vmbr1 inet manual It can be reached from the internal network, so that's OK. It has internet connection, which is also OK. vmbr1 is going to be used by the VMs. Each VM will have its own IP on his network interfaces configuration file. For some reason, VMs will not have internet and they won't be able to have public IP address. If I use NAT, it will work correctly, but they will not use the public allocated IP addresses for them. Am I missing something?

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• Any consumer routers with Outgoing VPN support?

  - by Brian Lacy

  When I'm working at home, I need to be able to connect to three different outgoing VPNs, two of which happen to use the same internal IP addressing schemes (192.168.0.*). I also need a static address for my VirtualBox VM so I can connect to my testing web server. Are there any routers which will allow me to connect to multiple outgoing VPNs and assign different internal IP addresses through NAT? Is such a thing even possible, or are there alternate solutions available? Thanks!

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• Server needs to ping outgoing before allowing connection

  - by QuintenVK

  Okay, first our setup: I'm currently working over VPN to a mac mini OSX 10.6 server. We have a testsetup VM running on that, using ubuntu 12.04. Earlier today, there was an outage because of which our mac mini server was reset. Since then, i was unable to initiate a connection to the VM (which i did boot) -- no ssh, no web, ... . I couldn't ssh or web from the mac mini to the vm either. I could do so from within the VM itself, though. Ping did work on all machines. Lastly, I tried pinging from the VM to my laptop. It took a moment, but then it finally started to ping (no timeouts or so). After that, web and ssh magically worked. I then didn't use the machine for about 5 minutes, after which i had to ping from the server to my laptop again before i could setup a connection. I'm in the dark on what this could be, though I think this is something to do with lookups.

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• Mysterious "media" volume mounted on desktop Mac OS X

  - by Allen

  I have a mysterious volume mounted on my desktop that I can't seem to forcibly unmount. I've tried using umount and also diskutil, but it seems to automatically remount itself. I've copied my hdd with Time Machine, and copied it onto a new computer, and it also has the drive mounted on it. It's not pointing to anything and I can't open it, nor can I forcibily remove it by hand with rm -Rf. Any ideas? I noticed this problem after I upgraded to Mountain Lion from Lion. It causes problems because when I try to select a file using the built in Finder dialog box, it freezes for a few minutes because it tries to cache or read into the "media" mounted volume.

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• Decrypting a TrueCrypt drive pulled from another machine

  - by Blakeg08

  I work in a corporate environment and we are now required to encrypt laptops. I have already encrypted about 5 or 6 out of 40. I still have a few questions before we go all out with TrueCrypt. Can I decrypt a hard drive by plugging it into my desktop using a data transfer kit? I tried this and the hard drive showed up asking me to format before using the volume. If I have the TRD from each laptop backed up do I still need to backup the volume headers? What else do I need to back up? Thanks.

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• Have I created the recovery disk from recovery partition correctly?

  - by Tim

  I was creating recovery disk from recovery partition on my Lenovo T400 with Windows 7. 6.5 GB of the recovery partition has been occupied. But in the process, I created three DVDs. I might remember wrong, but the first two DVDs were called by the wizard as disk 1, and the third one was called disk 2. The first one has been written 0.22 GB only. Following is the content of the DVD (right click the image and select view the image in a bigger size): The second one has been written 3.97 GB as follows: The third one has been written 2.44 GB as follows: I am allowed only one time to create recovery disk. So I cannot try again. So I was wondering if I missed something? How is the creation process supposed to be like? Thanks and regards!

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• Is it possible to live-boot VirtualBox from a USB flash drive?

  - by bw.

  To clarify, I'm not asking if you can boot from USB from within VirtualBox. I would like to make a portable version of Windows 7 that I can run from a USB drive on any machine. I'm putting a distro of Linux on my laptop, but I manage a Windows domain at work so I'd like an easier management solution than trying to use Linux tools to interface with a Windows DC(as RDP to a DC is not always an option). The reason I'm inquiring about VirtualBox... I plan on carrying this portable installation with me and using it on multiple machines, so I would like to avoid driver conflicts (which I imagine would happen if I only installed Windows on a flash drive). Basically, I need a way to boot an installation of Windows 7 from USB that still allows me to install/remove/update programs as if it were installed on a standard hard drive, and not freak out over different hardware configurations. Please help, superusers!

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• Where to look for regular scripts?

  - by fontan

  It seems to me that our server freezes every 30 days around noon due to the huge utilization of xvda data transfer partition - writes are 50 times higher than normally (according to the health monitor in plesk). This seems to me as the reason why the apache & co becomes instable as (for example) all apache's processes are waiting to write their log (according to the service's full status). I am, however, unable to find any scheduled task that would be executed during that period. I have checked both cron and anacron setup and there is only one monthly anacron task which is not executed (according to the /var/log/cron - and there is nothing unusual) around noon. Are there any other places where to look for periodical processes? (I am just about to ask server's provider the same question about any external maintenance run around this time but I don't expect them to run anything time/resource consuming during the day.)

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• Join Domain from VM

  - by Adis

  I have two VMs running on VMWare Player. I use NAT adapter settings. The host machine for VMs is running on corporate network. First VM has Domain controller running and I can log in on that machine using domain credentials. I named domain wm.local When I run IP config on this machine: IP: 192.168.87.132 Def Gataway: 192.168.87.2 DNS server: 192.168.87.2 DHCP server: 192.168.87.254 Second VM cannot join domain. When I try it with domain WM I'm propmted for credentials. And I enter Administrator credentials and than it waits for some time and I get response: "The specified domain either does not exist or could not be contacted" If i type wm.local as domain when trying to join it does not prompt me to login but just shows "An Active Directory Domain Controller (AD DC) for the domain wm.local could not be contacted. And here it takes no time to get this error message. Ipconfig on this machine: IP: 192.168.87.134 Def Gataway: 192.168.87.2 DNS server: 192.168.87.2 DHCP server: 192.168.87.254 I can ping second VM from first one. And I disabled firewalls on both machines. Any ideas? Is there any manual for this?

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• What's the best way to be able to reimage windows computers?

  - by mos

  I've got a low-end machine for testing our software. It needs to be tested under various versions of Windows, so I was planning installing each one on its own partition. Then I realized that after testing our software, I'd want to roll back to the previous, clean state. I don't want to use any virtualization software because it tends to interfere with the workings of our app. That said, what's the best way to achieve my goal? Norton Ghost? Edit: I work for a pretty monstrously huge organization. Money is no object here (and sometimes, if the wrong people get wind of it, "open source" software is bad).

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• Ways to setup a ZFS pool on a device without possibility to create/manage partitions?

  - by Karl Richter

  I have a NAS where I don't have a possibility to create and manage partitions (maybe I could with some hacks that I don't want to make). What ways to setup multiple ZFS pools with one partition each (for starters - just want to use deduplication) exist? The setup should work with the NAS, i.e. over network (I'd mount the images via NFS or cifs). My ideas and associated issues so far: sparse files mounted over loop device (specifying sparse file directly as ZFS vdev doesn't work, see Can I choose a sparse file as vdev for a zfs pool?): problem that the name/number of the assigned loop device is anything but constant, not sure how increasing the number loop device with kernel parameter affects performance (there has to be a reason to limit it to 8 in the default value, right?)

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• Terminal Server CPU usage at 100%

  - by Light1c3

  I'm running a terminal server with around 50-60 users,and every so often the server will go from 40% usage to 100%. I took a closer look an it seems every time this happens, a different user or two seem to be caught in a loop and end up using < 30% where the rest of the users only use a maximum of 5%. The company behind the software we use clame it's due to the servers inadequate hardware (It's a VM system running on a dual - quad core setup) which to me sounds like BS! I'm fairly new to this level of IT so if I misspoke I apologize. I have no way to prove it but I believe adding more raw hardware power wont do me any good as this to me seems like a bug in their software, and it will suck up as much ( or little) CPU as it's given. The VM in question has 4 vCPU cores and 12 GB RAM available, and is running Windows Server 2008, 64-bit Thanks in advance for your help! Note: I have the same question posted on SO, but was pointed in this direction so just in case, here is a link to the post http://stackoverflow.com/questions/17276602/termserver-cpu-at-100

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