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• How to restore Windows 7 MBR without a CD

  - by Brandon Bertelsen

  I have been playing with Ubuntu for a few weeks now, and I'd like to revert my computer back to it's original - factory - defaults. On the computer I have a recovery partition (it's a netbook). I went through the process of recovery and everything seemed fine. However, when I restart the computer I'm presented with grub rescue > Now, my understanding is that when I installed Ubuntu "side by side" it replaced the MBR or something like it, with GRUB. I've read on a slew of forums, that I need to use a Windows Recovery Disk. Here are my issues: a) I don't have a recovery disk, I have a recovery partition - it's a netbook. b) I don't have an external cd drive. What I do have is a USB key that has about 1gb of space on it. Thanks in advance.

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• RTL8188CU USB Network Adaptor on ubuntu 13.04

  - by Daniel B

  I have an RTL8188CU USB Network Adaptor. On Ubuntu 12.10 I had to download RTL8188C_8192C_USB_linux_v3.4.4_4749.20121105 because the built-in rtl8192cu driver did not work on the 64bit system (Tested fine on 32bit). Now I have upgraded to Ubuntu 13.04 and of cause the switch from kernel 3.4 to 3.8 broke the compatibility with the driver source. And (Like I suspected), the 64bit issue with rtl8192cu has still not been resolved. Since Realtek has not yet provided a new driver source, I have no working network on my computer (I use USB Tethering from my mobile at the moment). I tried downloading the Windows driver and set it up with ndiswrapper, but as soon as I activate the ndiswrapper module while having that driver installed, I get a kernel panic. Since I cannot be the only one using this USB Adaptor, I wanted to see if someone else might have found a solution to get something working? Someone might even have a solution as to why the built-in 64bit driver does not work?

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• What package do I need to build a Qt 5 & CMake application?

  - by Kevin Reid

  I'm trying to build sdrangelove, which wants Qt 5 and uses CMake for its build system, on Ubuntu 13.10. What package do I need to install to give it the file it's asking for here? There are a lot of *qt5* packages, and I've tried installing the promising looking ones to no effect. All the discussions I've found either have things working fine or are talking about writing CMake build rules rather than executing them. I don't have a lot of experience with the organization of Debian/Ubuntu packaging. CMake Error at CMakeLists.txt:14 (find_package): By not providing "FindQt5Core.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "Qt5Core", but CMake did not find one. Could not find a package configuration file provided by "Qt5Core" (requested version 5.0) with any of the following names: Qt5CoreConfig.cmake qt5core-config.cmake Add the installation prefix of "Qt5Core" to CMAKE_PREFIX_PATH or set "Qt5Core_DIR" to a directory containing one of the above files. If "Qt5Core" provides a separate development package or SDK, be sure it has been installed.

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• How to create a good sitemap for dynamic website

  - by Saif Bechan

  I have a website with dynamic content and different kind of pages. I have some pages that rarely change, and I have pages like blogs that change often. The blog pages also have links for sorting, for example sorting on date, asc, desc. On some of the pages I also have links to different tabbed content, and links that are just anchor links. Now when I use a xml sitemap generator then all the links are thrown into the site, and so I don't think all the links are really relevant. The blogposts up until now are also taken into the sitemap. Is this really necessary? I think the links to the blogposts can be indexed just fine. Is the best way to make a sitemap just to manually assign the main menu links to the sitemap, or is indexing everything really recommended?

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• Extending web server controls by providing client side functionality through Javascript

  - by nikolaosk

  In this post I will demonstrate how to extend the functionality of the web server controls by adding client side functionality with Javascript. Let's move on to our example. 1) Launch Visual Studio 2010/2008/2005. (express editions will work fine). Create a new empty website and choose a suitable name for it. 2) Add a new item in your site, a web form. Leave the default name. 3) We need to add some markup. < form id = "form1" runat = "server" > < div > < span id = "test1" > nikos...(read more)

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• Oracle Technology Network Newsletters Revisited

  - by Justin Kestelyn

  You may find this hard to believe, some analysts content that email newsletters are still among the most preferred methods of "information awareness" by developers today. And in our experience, the numbers back it up: subscriptions to Oracle Technology Network newsletters grow organically by 15% every year, even after you take continual list cleanup into account. At this point, we have honed our newsletter strategy to a fine edge; the choices are now: Oracle's Java Developer Newsletter Oracle's Database Application Developer Newsletter (also suitable for DBAs) Oracle's Architect Community Newsletter Oracle's Solaris Community Newsletter (new!) Oracle's .NET Developer Newsletter All of which you can subscribe to here; sample issues also available. Have a taste, you'll like them!

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• Apache Rewrites not working due to Akamai

  - by nuttyket

  I have a website which is setup with akamai. My domain and subdomains are mapped onto an Akamai IP. I have written an Apache rewrite which does an internal URL X to another internal URL Y. This rewrite works fine as long as I am testing in my local setup or for those subdomains which are not mapped onto Akamai but directly onto my Public IP. My suspicion is that while rewriting the request apache is not able to resolve the IP of the app server correctly. When I add entries to my /etc/hosts file pointing the domain/subdomain to my internal IP the rewrites work. Now, I have a huge list of subdomains and it can grow as well. Is there another way to fix this problem without having to make entries in the /etc/hosts file ? I would much appreciate your thoughts.

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• Dell inspiron 3537 keyboard and touchpad

  - by PeterJack

  With new dell inspiron 3537 keyboard works fine with livecd. Everything stable. Touchpad don't works at all but this is not big deal because I have external mouse. But when i install system on disk and reboot I can't event pass my password to account. Keyboard suspend on second lub some char and repeat(example peteeeeeeeeeeee - stuck on e). I try linux mint(13, 15, 17), ubuntu(12.04, 14.04), fedora - always the same work only on livecd. can't find any solution. Sometimes not suspend on key but only freeze. Whatever i press it's response.

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• Downloading large files hangs system

  - by Igor

  When Im trying to download large files, i.e. 1gb or more under FireFox, first of all it starts with very big download speed and in few seconds in almost get up to max (~11 MBps). It is downloading very fast, but when downloaded size becomes near 700-800mb and more, my system almost completely hangs, so I can do nothing - I just have to wait until it finishes downloading. Also when it hangs, I can't see the download progress - it looks like it completely hangs. Sometimes, however, if the file size is near 1gb, the system comes back from hang, finishing download, but sometimes I just cant wait before system comes back and have to kill FF from top (it takes me 2 minutes to do this, because of very slow system performance). I use Firefox as primary browser. If I use wget with direct link to file - everything is fine. Speed at max, no performance decrease. So what can I do?

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• Silverlight Client for Facebook updated for Silverlight 4 release

  Yet again, weve updated the Silverlight Client for Facebook for the Silverlight 4 release version. In order to use the updated one, you must follow these instructions: First, uninstall the previous version you have. This can be done in Add/Remove Programs on Windows or by just deleting the app on Mac. Ensure you have Silverlight 4 installed. If you are using the development tools and have installed Silverlight 4 developer tools, thats fine. If you are not a developer, visit http://microsoft.com/getsilverlight...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• How to update a game off a database

  - by James Clifton

  I am currently writing a sports strategy management game (cricket) in PHP, with a MYSQL database, and I have come across one stumbling block - how do I update games where neither player is online? Cricket is a game played between two players, and when they (or one of them) is online then everything is fine; but what if neither player is online? This occurs when championship games are played, and these games need to happen at certain times for game reasons. At the moment I have a private web page that updates every 5 seconds, and each time it loads all games are updated; but then I have the problem that when my private web page stops (for example my computer crashes or my web browser plays up) the game stops updating! Any suggestions?

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• running jar in a terminal using axis2

  - by Emilio

  I'm trying to run in the command line a java application distributed in a jar file. It call an axis2 web service, so the jar contains a /axis2client directory with rampart.mar security module. It works fine while I run it in netbeans, but it throws an exception if I try to run it in a terminal using this command: java -jar myfile.jar The Exception: org.apache.axis2.AxisFault: invalid url: //file:/home/xxx/Desktop/myfile.jar!/axis2client/ (java.net.MalformedURLException: no protocol: //file:/home/xxx/Desktop/myfile.jar) As you can see, it's trying to use the /axis2client directory inside the jar, as when I run it in Netbeans, but It fails with a MalformedURLException. I think it's something about the protocol 'file:', probably '//file:/' must be 'file:///'. The problem is that I cannot change this call to the directory because the method that loads the /axis2client directory it's not mine, it's from another library that use my project and include all the axis2 support. So, any idea?? Thanks in advance lads!

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• Unable to mount external hard drive

  - by arranjamesroche

  Basically I my 12.10 update crashed halfway through, so I've had to start again and put all my data onto an external HDD. It was all going fine until this came up : Error mounting /dev/sdb1 at /media/amy/CA47-8339: Command-line `mount -t "vfat" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush" "/dev/sdb1" "/media/amy/CA47-8339"' exited with non-zero exit status 32: mount: wrong fs type, bad option, bad superblock on /dev/sdb1, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so When I tried to restore my info off the HDD. Now I'm stuck completely clueless as to how I'll get anything off the hard drive.

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• Redirect a url to another url in IIS 7.5

  - by Jason White

  I have no idea why this isn't working. I've tried creating map rules and then rewritng and redirecting the url. I've tried just redirecting it with a simple rewrite rule and no matter what, the only time I can get it to work is if I set the match url to match this regex .*. I'm trying to redirect webmail.example.com to mail.example.com. Seemed like it would have taken but a couple seconds; boy was I wrong. I'm thinking I must be doing something wrong with the regex, but I'm not sure what as when I test it it seems to work fine. <rule name="webmail" patternSyntax="ECMAScript" stopProcessing="true"> <match url=".*webmail.*" /> <conditions logicalGrouping="MatchAll" trackAllCaptures="false"> </conditions> <action type="Redirect" url="https://mail.example.com:8000" appendQueryString="false" logRewrittenUrl="true" /> </rule> Thanks

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• Laptop takes a long time to boot after Grub menu

  - by Andres

  I am running a Asus R401VJ laptop (Latin America version of N46VJ) that has a Core i7 CPU and 8GB RAM. After my Grub menu, which is displayed for 2 seconds as I set it up, I'm getting a black screen with a blinking white cursor that is increasing my boot time to about 60 seconds. After a while Ubuntu runs fine, I just want to reduce my boot time. I don't know if this has something to do with my never used Nvidia 2GB GeForce GT 635M graphics card. Always when I tried to install the driver, I ended up with a ~600x800 screen resolution, and I fixed it by deleting a file called: xorg.conf from the /etc/X11/ directory, following a suggestion that I read in another forum. I would appreciate detailed answers, I'm still new at Ubuntu.

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• Rebind Alt key to win using setxkbmap?

  - by Wayne Werner

  Hi, After an hour or two of manpage and Google searching and finding no solution or good resources, I've come for help! I have set my Caps Lock key to Ctrl using setxkbmap -option ctrl:nocaps - this works perfectly fine. However, since I use [awesome][1], and an IBM model M which lacks the meta key, I need my left alt key to replace the windows key. Using xkeycaps I was able to get this to work, except it killed my arrow keys and End. Problematic. Unfortunately, documentation on setxkbmap options are sparse. and I can't find the proper option to use. Thanks for any links/solutions.

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• Ubuntu stuck in low resolution after UNinstalling / disabling NVidia drivers

  - by Han Cnx

  Tried the Nvidia driver, installed using the Additional Drivers panel. Didn't like it much; the CPU seemed to overheat more and the brightness controls stopped working. Also selecting a second display is a pain using that horrible NVidia settings thing. So wanted to disabled it again.. problem is, UBuntu is then stuck in either 640x480 or 800x600 (second time I tried to install it back and then remove again). How can I get this back the way it was? The original Ubuntu drivers worked just fine, allowing me to run Unity and games properly. I tried a xserver-xorg reconfigure but this didn't do anything. (No xorg.conf file either). This is on a Lenovo Thinkpad T410i

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• How to use MythBuntu to send TV signal to a 2nd frontend

  - by Mark Preston

  I guess the a MythTV or MythBuntu backend acts as a "server" for the frontends. I have MythBuntu installed. It runs fine, I can tune live TV, hear the sound, etc. To get this to work, I had to config the Wired Network IP4V settings to Method: Link-Local Only. The Local Backend IP address is: 127.0.0.1 and the info (bottom of screen) says that if there is another frontend, that this IP add. must be changed. 1 - Does this mean changed to the IP address of the 2nd frontend? 2 - What "Method" do I use to make 2 or more frontends? 3 - I have an ethernet switch which currently "sees" the tv signal, sends it to the computer's ethernet port where Mythbuntu makes use of it. 4 - How do I set up the Myth to send it's output (the tv shows) to both televisions? If you know of a How-To, or website, please give the URL or identifying keywords.

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• No Launcher, Messed Resolution and Artifacts!

  - by Felipe Ribeiro R. Magalhaes

  I installed Ubuntu 12.10 on my desktop, and it boot up ok, but I was having some artifacts, so I read somewhere that I needed nvidia drivers, I downloaded them, along with compiz (I enjoy the nice effects), but after that, when I rebooted the computer, the resolution was all messes up, and now I can't access anything because there is no launcher! I inserted Ubuntu CD, booted from the CD, the resolution was fine and eerything was OK, so I repaired the installation, but after restarting the computer it was all messed up again! Please help me! I'm running Ubuntu 12.10 on a Core i7 and a GTX 460 + GTX 280! How Ubuntu looks as soon as I turn on my computer on:

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• Best Web Site Copying Software

  - by GregH

  I just wanted to get some opinions on the best "web site copying" software out there (free or commercial is fine). I have a site that I've recently become responsible for managing, and the previous consultant has not provided operating system access. As such, the plan is to re-host the web site. I realize there are a lot of different issues to consider in doing this. However, I don't have much choice in the matter now. The plan is to use web site copying software (ala HTTrack) to "rip" the web site, and then modify what is downloaded back in to a maintainable site. This, of course, involves HTML, css, javascript, etc on the front-end. I'd like to recover as much of the site as possible to make re-creating it as easy as possible.

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• Why doesn't the Visual Studio C compiler like this? [migrated]

  - by justin

  The following code compiles fine on Linux using gcc -std=c99 but gets the following errors on the Visual Studio 2010 C compiler: Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86 Copyright (C) Microsoft Corporation. All rights reserved. fib.c fib.c(42) : error C2057: expected constant expression fib.c(42) : error C2466: cannot allocate an array of constant size 0 fib.c(42) : error C2133: 'num' : unknown size The user inputs the amount of Fibonacci numbers to generate. I'm curious as to why the Microsoft compiler doesn't like this code. http://pastebin.com/z0uEa2zw

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• Install Ubuntu 13.10 in dual boot with Windows 8.1

  - by Xaxt

  I have a laptop with installed Windows 8.1 x64. I want to intstall Ubuntu 13.10 (x64 of cause) in dual boot with it. I've made bootable USB stick (using unetbootin) with Ubuntu and tried to boot with it. It boots fine, and allows me to choose language and asks whether I want to install Ubuntu or just boot it. But if I select any ot these options, it shows black screen and hangs. I've been waiting about 15 minutes for it, but nothing happened. Light of USB stick indicates that my laptop was not trying to read from it that time. I switched off EFI in BIOS, switched AHCI/SATA modes, burned ISO image to DVD and still same effect. This topic can be called a duplicated, but I have't find what it duplicates. In other topics people asked what will happen if they update Windows 8 to 8.1 having already dual boot and I have installed Windows 8.1 and want to install Ubuntu alongside with it Did I miss something?

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• Naming boolean field that is a verb

  - by dnhang

  In Java, by convention getter and setter for boolean fields will be isField() and setField(). This works perfectly fine with field names that are adjectives like active, visible, closed, etc. But how do I name a field that has meaning of a verb, like haveChildren? Add _ing to the verb (havingChildren), maybe? Edit: to clarify, I don't have control of the method names (getter and setter), they are auto-generated by the IDE. So what I need is an appropriate field name so that when the IDE generate a getter for it, it make senses. For example, hasChildren is a perfect field name, but when the IDE generate the getter for the field it would be isHasChildren. How do I solve this?

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• jungledisk fails with libnotify error

  - by Angelo

  Has anyone had success getting the jungledisk application to work under Ubuntu? I installed it from the .deb file provided by jungledisk. The install goes fine, but I can't get the "jungle disk desktop" app to launch. It appears in the dash search bar, but doesn't launch or do anything upon selecting it. When I try the command line, I get the following... $ jungledisk -V -f Verbose mode enabled Shutting down... $ I get something more interesting with the following command ... something about libnotify.so $ junglediskdesktop -V -f junglediskdesktop: error while loading shared libraries: libnotify.so.1: cannot open shared object file: No such file or directory Does anyone have suggestions for what to try?

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• Settings xorg.conf to be used with VESA driver?

  - by Fernando Costa

  I have an brand new installation of Ubuntu 9.10 (karmic version) where everything is fine except the video resolution. In Ubuntu 9.10, the file xorg.conf is empty by default. I'm using an onboard video card, and Ubuntu can not find the right resolution for me. It always uses 800x600, but I need at least 1024x768. Also, my monitor is listed as Unknown Type. Ubuntu did find the right resolution when I changed the monitor to a Samsung monitor. By the way what are the generic settings to put inside xorg.conf? What is the settings for Refresh Rate, for example, I got a resolution of 1280x800, but the Refresh Rate generally between 60 ~ 80 htz is ZERO on my resolution.. In 1024 resolution my Refresh Rate is 75 htz.. What is going on with my resolution and how to modify the Refresh Rate?? Many Thanks!

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