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• Can't boot freshly burned Ubuntu cd

  - by user89004

  So I just burned a Ubuntu 12.04.1 powerpc .iso on a cd for my iMac G5 running Mac OS X 10.4.11 and it won't even recognize the cd. I burned it on my dad's Windows 7 laptop as the process is way easier (just 2 clicks). Mac OS X 10.4.11 gives me an error when it starts and when the CD is in saying "the disk you inserted was not readable by this computer". What's funny is that I burned a Ubuntu Minimal .iso on a CD and it would totally read that and even boot it though it gave me some errors afterwards and I couldn't install. I even tried going into openfirmware and hitting boot cd:,\tbxi but I get the error "Warning sector size mismatch can't OPEN cd:,\tbxi Can't open device or file" Was there something wrong with the .iso I burned? Mac OS X 10.4.11 won't even mount that .iso it tells me that the HFS file system is corrupt or something, but I know the .iso doesn't contain HFS file system. Any help? I downloaded the .iso from http://cdimage.ubuntu.com/releases/precise/release/ubuntu-12.04-desktop-powerpc.iso

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• C# creating a simple snake game

  - by Guy David

  I was thinking about creating a snake game with C#, so I ran ideas in my head, and some problems came up. How can I track and output in the correct location the blocks that run after the snake's head? If the snake is built of five blocks, and the user starts going in a circle, how can I print the snake body in the right location? Also, how can I create an action that will run on the background, which will move the snake forward, no matter what the user does? What structure should my code have? (code design structure) This should be a console application, since it's the only framework I am familiar with. I am not looking for finished code, since I want to really understand how it should work.

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• Extending SSIS with custom Data Flow components (Presentation)

  Download the slides and sample code from my Extending SSIS with custom Data Flow components presentation, first presented at the SQLBits II (The SQL) Community Conference. Abstract Get some real-world insights into developing data flow components for SSIS. This starts with an introduction to the data flow pipeline engine, and explains the real differences between adapters and the three sub-types of transformation. Understanding how the different types of component behave and manage data is key to writing components of your own, and probably should but be required knowledge for anyone building packages at all. Using sample code throughout, I will show you how to write components, as well as highlighting best practice and lessons learned. The sample code includes fully working example projects for source, destination and transformation components. Presentation & Samples (358KB) Extending SSIS with custom Data Flow components.zip

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• Webcast: Get More Sales Ready Leads for Less Cost with Oracle CRM On Demand Marketing

  - by ruth.donohue

  Successful marketing starts with knowing your audience: who they are, what they're buying, and how they like to be contacted. With customer data scattered across multiple systems, getting the answers to these questions can be difficult. Join our live Webcast to see a demonstration of how Oracle CRM On Demand Marketing increases marketing ROI by delivering the right messages to the right targets for the greatest response. Tuesday, March 15, 2011 11:00 a.m. PT / 2:00 p.m. ET Register Now! Technorati Tags: oracle crm,oracle crm on demand,integrated sales and marketing,cloud,saas

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• fix a broken ubuntu installation from pendrive

  - by interstar

  Something went wrong in the upgrade of my Ubuntu 13.04 to 13.10 The upgrade basically crashed halfway through. On booting I was thrown into a maintainence screen. I found some online instructions for fixing with the package manager ... Which seemed to do a lot of setting up. But then crashed saying package is in a bad inconsistent state. Now I'm in a position where Ubuntu starts again, but goes into a low-res screen and there's no WiFi. I have no Ethernet cable connection but I did download the 13.10 iso on another machine and put it on a pen drive. So I'd like to know there's a way of asking the machine from inside Ubuntu to redo its upgrade from the data on the pendrive rather than WiFi. Is this possible? Cheers Phil

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• Get Hands On with Raspberry Pi via Free OS-Building Course

  - by Jason Fitzpatrick

  Cambridge University is now offering a free 12-segment course that will guide you through building an OS from scratch for the tiny Raspberry Pi development board–learn the ins and outs of basic OS design on the cheap. You’ll need a Raspberry Pi board, a computer running Windows, OS X, or Linux, and an SD card, as well as a small amount of free software. The 12-part tutorial starts you off with basic OS theory and then walks you through basic control of the board, graphics manipulation, and, finally, creating a command line interface for your new operating system. Hit up the link below to read more and check out the lessons. Baking Pi – Operating Systems Development HTG Explains: What The Windows Event Viewer Is and How You Can Use It HTG Explains: How Windows Uses The Task Scheduler for System Tasks HTG Explains: Why Do Hard Drives Show the Wrong Capacity in Windows?

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• Remove bottom panel from a remastered LiveCD

  - by Uri Herrera

  How can I remove or autohide to 0 the bottom Gnome panel from a remastered liveCD and autostart AWN (or any dock for that matter...) to replace it? , just as moonOS 4 (the distro that gave me the idea to try to do this) Using this command to enable the auto hide gconftool-2 -t bool -s /apps/panel/default_setup/toplevels/bottom_panel/auto_hide "true" i Figured out how to Autostart AWN,however that involves removing BOTH panels, so im not quite there yet Using UCK gconf-editor to manually edit the option to auto hide the bottom panel doesn't work, when testing the livecd BOTH panels are still there, even though i use the command and then run gconf-editor to check that the option is eneabled, which it is, however, once the livecd starts the autohide feature is disabled

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• Forcing a Service to Restart at Boot

  - by pjtatlow

  So I use winbind and samba to connect to an AD domain at work, and one of my ubuntu machines has been having issues. At boot, I cannot log in as an AD user, but if I log in as the local user and do a sudo service winbind restart it works fine. Yes, winbind does start at boot, although for some reason incorrectly I think. I can't tell anything from the logs, and I'm just wondering how to force winbind to restart after it starts the first time, at boot. Thanks!

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• DSL connection can't connect once disconnected

  - by Aj264

  I have setup a DSL PPPoE connection, over my cable modem, connected to my laptop via ethernet. I have saved the user name and password and set it to connect automatically. This works well when ubuntu starts and i am connected to internet. But if i try to disconnect and then reconnect, the connection wont be established. I have to restart or log out and log in, in order for ubuntu to establish the DSL connection. Any idea why this is happening? I am on ubuntu 11.10 64 bit.

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• Music player that remembers last song and playlist

  - by user654628

  I am looking for something similar to winamp. I have seen other threads but I have tried some solutions and they did not work. I tried Banshee that comes with Ubuntu 11.10 but it does not open last song. I tried Rhythmbox with the remember last song plugin however it does not remember the playlist I got the song from so it would start shuffling all my music. I tried Amarok and it does the same thing as Banshee except cannot even play my playlist and starts playing all my music. I tried audacious but importing my playlist .m3u doesnt allow me to select the individual playlists and play them. I just moved from Windows using winamp and would like a music player that can open playlists .m3u and when I open the application later that it opens the last song and playlist and I can press the play hotkey and music will start playing on startup similar to winamp. I do not care about any additional functionality or user interface.

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• Why do webpages take longer to loo in ubuntu 12.04 than Windows 7

  - by Emil Abraham

  For example, when I click on a Facebook picture, the picture remains pixelated for about 30 seconds, then starts to clear up. Or when I watch YouTube videos, I can't watch them on HD without running into buffer issues. Windows 7 is just much snappier. It might be an issue with the graphics card. Dualbooting Windows 7 64bit & Ubuntu 12.04 64 bit Specs: CPU: Intel® Core™ i7-2630QM CPU @ 2.00GHz × 8 RAM: 8GB DDR3 HDD: 50 GB to Ubuntu & Remaining 1.5 TB to Windows The interesting part: Graphics Card: On System Settings in Ubuntu: Intel® Sandybridge Mobile Graphics Card: What it should be: Radeon™ HD 7690M XT switchable graphics with 1024MB GDDR5 and up to 5093MB total graphics memory

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• API Design Techniques

  - by Dehumanizer

  Is it right or more beautiful to name the functions with an prefix, like in Qt? Or using "many" namespaces, but 'normal' names for functions? For example, slOpenFile(); //"sl" means "some lib" vs some_lib::file_functions::openFile(); UPD: I've read somewhere that the first variant(using some prefix) is better, because the API users can perform 'fast' search among the documentation and in the Internet. E.g. by typing the magic prefix search engine starts to advice the exact functions. Is it enough to use the first variant?

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• My site is getting popular, bandwidth expensive

  - by ElbertF

  I'm running a (small) image hosting site which has been getting a little bit of traction lately (2,000 to 5,000 visitors a day, spikes up to 10,000). It's hosted on Linode and I've already run out of the bandwidth for this month (300 GB). I've experimented with Amazon S3 but that was costing me $5 a day, Linode currently costs me $30 a month. I get a tiny bit of revenue from ads (Adsense and Black Label Ads) but it's not enough to break even. What should I do? Obviously I'd like to keep running the site but not if it starts costing me a lot of money.

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• Live CD boot/installation problem, blank screen - 12.04

  - by traubi

  I'm trying to install ubuntu-12.04-desktop-amd64 from my usb stick. When booting from usb I instantly get a blank screen (with a grey box at the left bottom) I checked the live system with my laptop.works well except it also starts of with a black screen and a grey box at the bottom. I figure the Problem is my geforce gtx 570 since older versions of Ubuntu where only able to boot with xforcevesa and nomodeset. Unfortunately I can't change the boot parameters. I tried the alternate version for a text based install, but it has the same problem. If I press Esc in the alternate I get a message box with two buttons but no text. I would be happy for any advice on this matter

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• Intermittent Copy/Paste Problem in RDP

  - by Tara Kizer

  If you use RDP to remotely connect to your servers, you've probably encountered a clipboard issue where copy/paste stops working.  A quick Google search on the problem indicates you can easily fix the problem by logging out/logging back in or killing/restarting rdpclip.exe on the remote server.  Here's an article which covers this topic. But what do you do when copy/paste is intermittent?  It works one second, stops working for 5-30 seconds, and then on its own starts working again.  This is what’s occurring in our new non-production environment.  The DBA team is setting up 16 new physical servers and 5 new virtual machines.  I haven’t found a server where this ISN’T happening.  This intermittent copy/paste issue is driving me crazy!

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• The Messiest Home Offices Ever! [Image Collection]

  - by Asian Angel

  A geek’s home office is a haven to relax in along with being an extension of personal interests and hobbies. But occasionally other people will criticize your setup as being messy, unorganized, or worse…and that is just going too far! The next time someone starts in on you about your home office simply “hit them” with this collection of the messiest home offices ever and put a permanent end to their arguments. WARNING!: Some of the images in this collection come with a strong rating of N.S.F.L. (Not Safe For Lunch), so if you have a squeamish stomach then it would be best if you skip visiting the link below. Untidy Home Offices Photo Collection [via BoingBoing] 6 Start Menu Replacements for Windows 8 What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8

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• How do I properly use multithreading with Nvidia PhysX?

  - by xcrypt

  I'm having a multithreading problem with Nvidia PhysX. the SDK requires that you call Simulate() (starts computing new physics positions within a new thread) and FetchResults() (waits 'till the physics computations are done). Inbetween Simulate() and FetchResults() you may not "compute new physics". It is proposed (in a sample) that we create a game loop as such: Logic (you may calculate physics here and other stuff) Render + Simulate() at start of Render call and FetchResults at end of Render() call However, this has given me various little errors that stack up: since you actually render the scene that was computed in the previous iteration in the game loop. Does anyone have a solution to this?

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• upgrade from ubuntu 13.04 to 13.10 causes vmware workstation 9 problems

  - by dan

  so, upgrade caused problem where running vmware ws 9 needed patches to accommodate linux kernal 3.11. I applied those fixes I found that others reported, and now i can only run vmware ws 9 from sudo. If i run it from standard user, it says it wants to recompile modules, which it does not do unless I open up a terminal and run sudo vmware. that works, but would like it to work correctly, have the modules that are recompiled stick. when running under sudo vmware, it does recompile with errors.. (vmware-unity-helper:13019): Gtk-WARNING **: Unable to locate theme engine in module_path: "murrine", and starts up and works ok. any ideas? thanks for any help you can provide

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• Grams to Pounds: A Domino Chain Reaction [Video]

  - by Jason Fitzpatrick

  Most of us have seen a domino knock down or two in our day, but this demonstration video shows how a series of increasingly larger dominoes allow a tiny domino to knock over a 100 pound domino. A domino can knock over another domino about 50% larger than itself. A chain of dominos of increasing size makes a kind of mechanical chain reaction that starts with a tiny push and knocks down an impressively large domino. The only question we have after watching the video is: where can we find 29 appropriately sized dominoes? [via Neatorama] HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization

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• How do you learn a new programming language?

  - by Naveen

  I am C++ developer with some good experience on it. When I try to learn a new language ( have tried Java, C#, python, perl till now) I usually pickup a book and try to read it. But the problem with this is that these books typically start with some very basic programming concepts such as loops, operators etc and it starts to get very boring soon. Also, I feel I would get only theoeritcal knowledge without any practical knowledge on writing the code. So my question is how do you tacke these situations? do you just skip the chapters if its explaining something basic? also, do you have some standard set of programs that you will try to write in every new programming language you try to learn?

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• High Usage of RAM by wxPython's GUI and need some advice to reduce it

  - by user67024

  I've recently developed a GUI in wxPython for windows platform. It contains a five tabs, 4 of them are just richTextCtrl boxes and the other one has controls for uploading files, buttons, textctrls, a slider etc.. As I was new to GUI development in Python, I used wxFormBuilder to generate some of the code using a good amount of sizers. So, now the problem is that the GUI starts off with a initial memory of around 40MB which is too much for such a simple application (Or so I think) . Also, when the functions handling the functions use huge lists as the program is for debugging large data logs and identifying the problems in'em implying that I can't afford memory for GUI. So, how can I reduce that start working memory size? Is it a general issue in wxPython? And currently trying use profilers but not sure if it's going to help.

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• WIn API Basic Paint program

  - by Tom Burman

  Just trying to learn a bit of Win API. Im trying to make a basic drawing app, a bit like MS Paint. For the time being im trying to get one function to work which is, when you left click and drag the mouse around the screen a line is drawn behind the mouse. Heres what i have so far, but for some reason: 1) the line starts drawing straight away rather then waiting for the left click 2) the line isn't solid its very dotty. case WM_MOUSEMOVE: { if(MK_LBUTTON){ hdc = GetDC(hwnd); hPen = CreatePen(PS_SOLID,5,RGB(0, 0, 255)); SelectObject(hdc, hPen); int x = LOWORD(lParam); int y = HIWORD(lParam); MoveToEx(hdc,x,y,NULL); LineTo(hdc, LOWORD(lParam), HIWORD(lParam)); ReleaseDC(hwnd,hdc); } else break; } } Thanks for any help!

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• How agile methodologies can be applied in a typical " services " company?

  - by AlfaTeK

  My company is a custom software services company for external clientes, which means our typical project is one in which the contract already states the full budget of the project. Our typical project starts by defining requirements (improving the proposal high-level requirements), then we code the project, test it and ship it. We have an acceptance phase were the client tests the software and in that phase we can usually implement small changes asked by the client, or we charge extra for change requests. In some projects we have intermediate releases so the clients can check the progress of the project and give feedback on it. In summary: something like waterfall... I've followed the "agile" movement for a bit now and I always see it being a good match for a "product" company, or a company building software for an internal client. But are there good stories / advantages on using agile methods in my kind of company/projects? What are your experiences, what do you think about this?

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• Howto have thunderbird/lightning open ics files

  - by berkes

  Some websites offer .ics files, calendar files. I would like thunrbird to open these with Lightning so it can add the events in the ics-file to its calendar. When I use /usr/bin/thunderbird to open the file with, it starts a new message with the ics file attached. I could download the file, then import it from lightning, But I rather have lightning just open the file. Is there a commandline-option for this? Some wrapper-script maybe? Should I change something in firefox?

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• Faulty memtest result

  - by dhojgaard

  I've been a bit suspicious about my RAM lately. They seem not work like i expect them to. For instance i run a lot of Virtual Test Environments in VMware Workstation and lately Ubuntu starts to lag just running 4 virtual machines each dedicated 512 MB. BTW im having 6GB memory on my laptop. This did not use to be a problem for me on my last laptop that even had a lot lower CPU resources. So i was led to try a memtest after reading some websites about RAM testing. So i did a memtest overnight but when i woke up this morning i was just looping and i could not Exit or do anything. It was just looping the number of errors besides test 7 which you can see in the lower right part of the screenshot. Can anyone interpret this screenshot for me? Do i have a faulty set of RAMs?

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