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• After Upgrading Ubuntu to 9.10 my hard drive now has a warning.

  - by Sean

  it is a 500gb hard drive format as ext3 path /dev/sdc1 The disk utility does not even see this. This Warning is from gparted: e2label: No such device or address while trying to open /dev/sdc1 Couldn't find valid filesystem superblock. Couldn't find valid filesystem superblock. dump2fs 1.41.9 (22-Aug-2009) dumpe2fs: No such device or address while trying to open /dev/sdc1 Unable to read contents of this file system? Because of this some operations may be unavailable. END OF ERROR MESSAGE Did I lose something during the upgrade of the system? Was it the hard drive or the Ubuntu system that went bad?

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• How to charge an iPhone on a Windows PC without Installing iTunes

  - by Martin Hollingsworth

  I want to be able to charge my iPhone on my work computer, which is running Windows Server 2008 SP1 64-Bit. When I plug the iPhone in with the USB cable, it will not charge. Windows attempts to locate a driver for the device but only comes up with a generic Camera device and even if I allow that to be installed, the iPhone still does not charge. I have checked the computer's BIOS settings and did not find anything relating to power on the USB devices. I also tried this on ports at the back of the computer in addition to those on the front. The PC is a Dell Optiplex 780. As far as I can tell USB devices do not charge unless Windows has installed an appropriate driver. Since it is a work computer I do not want to install iTunes which does include a driver. I have a workaround that I will post as an answer for reference.

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• What are current options to scan or convert a hand written note to a file on my laptop?

  - by goldenmean

  I wonder how come there are not many options when it comes to scan or convert a device which could be connected to a laptop/desktop, which could - 1] Allow me to write with a digital pen on some special surface, which is connected to my laptop and thus converts my hand written notes to a pdf/jpg/word. (Microsoft's failed attempt at windows based tablet PC in past comes to mind, but not anymore) Any such solution I can use with my laptop? 2] A document scanning device, apart from a flat bed scanner, integrated these days into multi function printers; anything that is portable enough to connect to my laptop?

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• Why is Firefox so slow and heavy?

  - by Tony

  For some reason, when I go to links the pages seem slow and heavy. It also has a lot of lag spikes between page loads. Basically it seems to freeze then load it all at once fast. I'm currently using Firefox 25. But when I use the same Chrome version, it seems to be very fast and smooth page loading. The CPU it takes on average is about 400,000k. Extensions: iMacros Leethax Ad Block Plus 2.4 Ad Block Plus Pop-up Addon 0.9.1 Computer stats: 6 GB RAM Windows 7 Acer Aspire Laptop 500 GB HDD Intel Core i4-2370M How do I make Firefox load like Google Chrome, without much freezing?

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• Webcam and drivers for it don't work on Win8

  - by Frantumn

  The webcam on my Asus G51Jx doesn't work now that I've upgraded to Windows 8. I've looked on the Asus site, but they don't seem to have drivers for Windows 8 yet. At least on my machine. I've tried - Using the windows 7 drivers, but the installers aren't compatible. - Automatically detecting new hardware with the metro device manager - Automatically detecting new hardware with the classic windows device manager - using all available drivers for my laptop on the Asus site. Does anyone have any ideas that don't revolve around waiting for official release drivers?

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• Free NTFS partition recovery

  - by Andrei Tanasescu

  I have a 1Tb disk which was partitioned into a ~700gb ntfs disk and a 300gb HFS+ (mac os X). I've accidentally allowed mac os x to wipe the hard-disk and create a single HFS+ partition over the hard-drive. I want to recover my NTFS partition. TestDisk fails to find the NTFS partition, but the DiskInternals solution does find my files. Are there any free alternatives to DIskInternals Partition recovery solution? THe tool should simply go block by block and attempt to reconstruct the files.

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• Bluetooth HSP support on Windows XP without third-party drivers

  - by joeforker

  Can the Windows XP built-in Bluetooth stack support HSP (headset profile) as an extra audio device, without third-party drivers?

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• Hosting a web site at home: ISP Blocking port 80?

  - by tombull89

  Hello, I presume this is a better place to put this rather than server fault. I'm interested in setting up a small site to host at home as a "proof of concept" exercise, i.e. to prrove that I know how to do it. I've got a (virtual) server 2003 machine with a site on it, all configured with port forwarding through to 80 on my server. I have a Belkin F5D7634 which I have put my DYNDNS details in but when I try to go to my DYNDNS address it comes up with the page cannot be displayed. My ISP is Carphone Warehouse/AOL and I've been unable to find any information if they block port 80. If they do, can anybody reccomend a home provider that does not block port 80? Regards, Tom.

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• Repair Lacie 2Big Network 2

  - by Donier

  hi i buy from you Lacie 2big network 2 I was have problem with drive 2 "missed" then i try format HDD to mac os journal end RAW Now i can't connect to the device from network asistant please hep me I can't connect to Doshboard and i can't connect from USB on Lacie 2 big network 2device. I can connect to HDD from Lacie 2big network 2. how create lacie doshbaoard boot on HDD device. i format disks because one of HDD is work not correctly... in the Dashboard RAID menu disk 2 missed.... Thank you i wiil wait your answer....

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• Lost Page Write I/O Errors on CentOS LVM setup

  - by Gregg Leventhal

  I have a CentOS 6 box with LVM setup and one of the PVs is a USB disk (I know). One of them is getting the error: Oct 30 10:57:07 alpha01 kernel: lost page write due to I/O error on dm-3 Oct 30 10:57:07 alpha01 kernel: Buffer I/O error on device dm-3, logical block 4 Which is causing problems with all of the LVs on it. pvs shows the PV as unknown device. I can ls to the logical volumes and they show up in lvdisplay, but first I get a bunch of IO errors. I made sure the cables are secure between the USB drive. What should I do to get this back up and running for the meanwhile? Should I unmount each LV and run an fsck.ext4 on each one like fsck.ext4 -y /dev/vg1/lv_logvolname ?

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• Nginx location to match query parameters

  - by Dave

  Is it possible in nginx to have a location {} block that matches query parameters. For example I want to pick up that "preview=true" in this url and then instruct it to do several different things, all possible in a location block. http://192.158.0.1/web/test.php?hello=test&preview=true&another=var The problem I'm having is that my test stuff doesn't seem to match, it seems like I can only match the URL itself? E.g. location ~ ^(.*)(preview)(.*)$ Or something aloong those lines?

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• ZFS, dedupe and PST files

  - by Unreason

  I am interested to know what would be expected maximum dedupe ratio for a set of PST files. I have ~40G of pst files from ~15 usres with high level of duplication of attachments. I am running tests to see if I can have significant space savings if I store the data on ZFS with dedupe. For this purpose I have installed a test setup of Nexenta, but was wondering if someone here had already done this and what level of deduplication I might expect (or in another words how sensitive are pst files to block alignment and what are the parameters that can influence the ratio?). Initial test show very low dedupe ratio and I did find explanation that block level dedupe would not be efficient here and that byte level dedupe would be much better (and that it should be performed by application that is aware of internal organization), so I am just double checking here if someone have some more input. Otherwise I will probably be converting PST files to IMAP.

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• How to authorize standard users to install drivers on Windows XP

  - by Dr I

  I'm currently looking for a way to autorize my non administrators users to perform an installation of drivers. Here is the speech: All my users are standard users, they got a VirtualBox Hypervisor if they need the administrator rights. But if they put an USB device on the local machine and try to redirect the device to the Virtual Machine, Windows ask for some Administrator rights. I've try to set up those GPO: Allow standard users to install drivers. Install WHQL Drivers: Allow Silently. I don't know how to do this.

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• ASA Slow IPSec Performance

  - by Brent

  I have a IPSec link between two sites over ASA 5520s running 8.4(3) and I am getting extremly poor performance when traffic passes over the VPN. CPU on the device is 13%, Memory at 408 MB, and active VPN sessions 2 so the load on the device is particularly low. Screenshot of wireshark file transfer between the two hosts over the VPN: The large amount of Header checksum failures is alarming, but I am not sure what to check now. I perf is showing around 4-5 Mbit/sec with differing TCP window sizes. Show Run on the ASA http://pastebin.com/uKM4Jh76 Show cry accelerator stats http://pastebin.com/xQahnqK3

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• file copy error from system to cifs mount

  - by dwpriest

  When coping a file greater than 64kB from an Ubuntu server to a CIFS mounted windows share, most of the data is copied, but it seems the last chunk doesn't get copied. The size doesn't match, and the md5 check sums don't match. I have plenty of file space, but then I use cp, I get the following... cp: closing `cloudBackup/asdf.txt': No space left on device Using rsync, I get the following... rsync: close failed on "/home/fluffy/cloudBackup/.asdf.txt.qrBWe6": No space left on device (28) rsync error: error in file IO (code 11) at receiver.c(752) [receiver=3.0.8] rsync: connection unexpectedly closed (29 bytes received so far) [sender] rsync error: error in rsync protocol data stream (code 12) at io.c(601) [sender=3.0.8] I have full read/write permissions on the mounted share. I can copy via SSH just fine. Any ideas? Thank you

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• "System volume folder" always appearing in USB storage stick

  - by ?????? Oyewole

  Whenever I move or copy video files from the PC (Windows 8.1) to my USB storage device and plug it into my TV, I always see a system volume folder on the USB device. This folder can be seen on the PC also, if I choose "view protected system files". My flash drive is formatted with a FAT32 file system. The question is, why is this happening on Windows 8.1, since I never had this problem on Windows 8 before upgrading, and how can I disable this feature?    OK, that's two questions.

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• Explanation of nodev and nosuid in fstab

  - by Ivan Kovacevic

  I see those two options constantly suggested on the web when someone describes how to mount a tmpfs or ramfs. Often also with noexec but I'm specifically interested in nodev and nosuid. I basically hate just blindly repeating what somebody suggested, without real understanding. And since I only see copy/paste instructions on the net regarding this, I ask here. This is from documentation: nodev - Don't interpret block special devices on the filesystem. nosuid - Block the operation of suid, and sgid bits. But I would like a practical explanation what could happen if I leave those two out. Let's say that I have configured tmpfs or ramfs(without these two mentioned options set) that is accessible(read+write) by a specific (non-root)user on the system. What can that user do to harm the system? Excluding the case of consuming all available system memory in case of ramfs

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• Windows stereo mixer does not hear what programs play in Windows 8?

  - by Suzan Cioc

  How to capture desktop audio with Audacity or similar programs? I need to capture sound which is produced by programs. I remember I should select windows mixer to record it, but currently I hear nothin with audacity. Why? Windows is Windows 8. Is see in record device window, that no sound goes through Windows Mixer record device As you see on picture, Windows Media Player plays sound, while monitor shows no activity. Why? And how to fix?

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• What are the essential considerations for setting up systems in a location with unreliable power?

  - by dunxd

  I deal with a lot of remote offices located in parts of the world where the local grid power supply is unreliable. Power can go off anytime with no warning, with outages ranging from minutes to days Power fluctuation is wild, with spikes and brown outs Currently the offices will have some or all of the following: A generator, with an inverter, or some sort of manual switch A big UPS or battery array connecting a number of devices Several smaller APC UPS with computers attached Low cost Voltage Regulators sometimes connected between mains and UPS or device. I know that each of these things needs to be appropriately rated for the equipment to which it is connected (although I am not sure how to calculate the correct rating). The offices will generally have the following equipment (in varying quantities): some sort of internet connection device (VSAT router, ADSL modem, WiMax router) Cisco ASA 5505 firewall a bunch of PCs printers one server I don't seek to replace the advice of an electrician, but in some of these locations they only answer the questions you ask them, so I need to make sure I have enough understanding of the essentials to protect equipment from damage, and possibly get through some power cuts.

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• Drive stopped working on windows server 2003 and I receive a "controller error"

  - by Durden81

  I can access the server in safe mode. I have a Proliant 360 Hp server with Windows server 2003 R2. The event viewer is completely filled up with this error: the driver detected a controller error on Device\Harddisk3\DR3 I individuated the drive affected. It is drive H that is a secondary non mirrored drive. When I access anything on that drive I receive: "the request could not be performed because of an I/O device error" What should I do? Is this just a driver issue or a hard drive failure? Please give me a quick help as my websites are offline due to this. Any suggestion is welcome!

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• Camtasia on remote computer?

  - by daughtkom

  I have a need to use one laptop for a live presentation (with projector, etc.), but record that presentation on another laptop -- similar to what I can do with Camtasia, only with the recording happening on another laptop. Is this possible? What do I need to do this? Some VGA device that goes between the presenting machine and the projector? Some USB device? My ideal requirements: The machines must be "standard" laptops (so I can't just add a new card to a desktop, etc.). I prefer a hardware solution, but cannot involve studio type equipment. I'd prefer not to install Camtasia (or similar) on the presenting machine for two reasons: licensing issues performance issues (sometimes the presentations are machine intensive and I don't want the recording software to interfere with the presentation) I'd appreciate any tips. Thanks.

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• Is there a free tool/package that can monitor web traffic and display URLS accessed? [closed]

  - by Anthony

  I couldn't find a similar question but then maybe I am searching for the wrong terms. A few years ago I used a router like device, I'm pretty sure it was a SonicWall, that did this on a clients site. Basically all traffic would be routed through this device and it allowed the manager/administrator to inspect web usage of the workers, determine how often certain resources were accessed and block them if necessary (much like content filter). It showed reports based on domain name reached etc. Facebbok.com, Bebo.com and so on. It also displayed the usual IP traffic information etc. it was a UTM also. I have tried Endian firewall, with it's NTOP install, but I don't think that will show URLs browsed. Maybe I just haven't found it in NTOP yet? I need this to troubleshoot connection and traffic issue at my home, with about twenty devices/users so didn't want to buy a dedicated solution and have spare hardware to use a community product.

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• Windows 8.1 update effectively disabled mobile broadband connection

  - by natarajan

  I have Windows 8.1 on my HP laptop and a Huawei broadband modem which was working fine but since some of the updates of Windows 8.1 it is now not working. I have following issue: Under Device Manager Network Adaptor it shows the Hauwei mobile E303H but when I click on it and go to the Driver tab I can see that no device driver is installed. When I click to update the driver and select the generic mobile broadband adaptor it fails and shows "access denied". How do I go about replacing the driver for this?

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• Material to use for computer system cover against UV and salty air?

  - by hippietrail

  I live right next to the sea and have a large window quite close to my computer setup which allows a lot of indirect sunlight to enter. I'd like to buy or make a cover for my computer system. From visiting my usual mom & pop computer shop yesterday I got the impression these might not really exist any more. If I make my own I need a material with these qualities: Block or reduce ultraviolet light which can depolymerize plastics (the sun here in Australia is much stronger than in the northern hemisphere). Block salt-laden sea air which can oxidize USB and other connectors. Not cause static electricity when covering or uncovering. Keep dust off of course (-: My setup is a laptop plugged into a wide-screen LCD with a few external drives. So I think I'd want a largish sheet to flop over the whole desk. Are such covers commonly sold these days? What material(s) should I look for which provides the listed attributes?

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• Is it possible to use the bluetooth adapter from my logitech keyboard to connect headset?

  - by King Chan

  So, as titled. I have a bluetooth wireless keyboard that goes with the bluetooth adapter from Logitech 2 years ago. Recently I just brought a bluetooth headset from other company, but I wonder if I can reuse the bluetooth adapter from Logitech to use the headset? I don't seems to find an option in my control panel that allows me to add the headset device.... Or the blue adapter that comes with Logitech is only able to connect to the logitech keyboard? In that case, if I buy a bluetooth adapter, will it possible to share 1 bluetooth adapter with two device? (1 to 2? not 1 to 1?)

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