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• Safely dual-boot XP and Ubuntu 12.04 Desktop?

  - by Ycart I

  My netbook Acer AOD255 has three primary partitions in it by default - PQSERVICE/recovery (NTFS), Android x86 1.6 (FAT32), and the main WinXP Home SP3 (pre-installed, dual-booted with Android from inside WinXP). I was able to resize all three partitions to give 9GB of unallocated space for a future Ubuntu installation, which can already be booted from a pendrive. Here's my problems: 1.) I don't know how to install Ubuntu on that 9GB space (even if I create an unformatted partition for it) 2.) I currently have no means of reinstalling my XP, or backing-up any data (so I don't want to accidentally wipe out my whole HDD at all) 3.) I want XP and Ubuntu to be dual-booted thru a boot manager like GRUB or something more practical (but google searches confuse me) 4.) When I boot to try Ubuntu, GParted displays my whole drive as unallocated space. It also says "can't have overlapping partitions" or something.

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• After the update today no graphical interface anymore - 12.04

  - by Mark

  I installed the updates through the update manager today. I shut down my Laptop and now after starting it up again, I only get terminal access to advices. Grub is loading fine and after I picked Ubuntu 12.04 the screen get blank and I am asked to log in with my username and password in command line mode. If I log in I am still in command line mode. How do I get the "normal (graphical)" Ubuntu back? I hope you know what I mean. Since English is not my first language I can't explain this the way I would like to. Mark

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• How to understand Linux kernel source code for a beginner?

  - by user16867

  I am a student interested in working on Memory Management, particularly the page replacement component of the linux kernel. What are the different guides that can help me to begin understanding the kernel source? I have tried to read the book Understanding the Linux Virutal Memory Manager by Mel Gorman and Understanding the Linux Kernel by Cesati and Bovet, but they do not explain the flow of control through the code. They only end up explaining various data structures used and the work various functions perform. This makes the code more confusing. My project deals with tweaking the page replacement algorithm in a mainstream kernel and analyse its performance for a set of workloads. Is there a flavor of the linux kernel that would be easier to understand(if not the linux-2.6.xx kernel)?

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• Unity greeter background not changing for users automatically after upgrade

  - by bioShark

  I have recently upgraded from 11.10 to 12.04. Normal upgrade, no new installation. In 11.10 I was using Simple LightDM Manager tool to set a custom wallpaper on the login screen. This tool unfortunately doesn't seem to do anything since I have upgraded. I have also heard that 12.04 is suppose to have this feature (changing login wallpaper per different user) by default. I have searched in settings but unfortunately in vain. So, to keep it short, could somebody direct me to the option(s) page where I can make the desired changes.

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• How do I install the build dependencies for Android?

  - by newcomer

  Hi, I'm trying build the Android source using these packages. ButI am getting this error: $ sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev ia32-libs x11proto-core-dev libx11-dev lib32readline5-dev lib32z-dev [sudo] password for asdf: Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package libc6-dev-i386 E: Unable to locate package lib32ncurses5-dev E: Unable to locate package ia32-libs E: Unable to locate package lib32readline5-dev E: Unable to locate package lib32z-dev I tried to download & install say libc6-dev-i386 debian package form here. But when I double click on the .deb file Ubuntu Software Manager says wrong architecture 'amd64'. (My OS: 32-bit Ubuntu 10.10 (updated), Processor: AMD phenom II 64-bit.)

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• What is the state-of-the-art for using Broadcom Crystal hardware?

  - by echo-flow

  I just bought a Dell Mini 1012, which comes with a Broadcom Crystal media accelerator chip. I'd like to know what is the current state-of-the-art with regard to using this hardware on Ubuntu? What I mean by this is, what is the best way to install drivers to make use of this hardware, and what media players currently support it? I've read that XBMC currently does, but what about gstreamer? Ideally, I'd like to find a solution so that I can accelerate Flash videos using the device. It seems like one strategy may be to download Flash videos to the hard drive and play them with an external, Crystal-enabled media player, and so that seems like one option, but I'm wondering if any of the free flash alternatives (Gnash and Lightspark) support hardware acceleration of flash video using the Crystal API? It seems like there is a lot of information about all of this on the web, but it's not consolidated, and seems like a rapidly moving target, so any insight anyone may have into this would be appreciated.

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• How to set up offline manifest for a web app to run in Safari in iOS?

  - by ahmd1

  I'm currently trying to set up an offline.manifest file for my web app to be used offline on an iOS device. For testing purposes I have a very simple HTML page that I'm trying to add to a home screen. I'm testing it on a live iPhone 4, but after the page is added to the home screen and I put the iPhone in the airplane mode and try to start my web app I get this error: "Turn Off Airplane Mode or Use Wi-Fi to Access Data" and then if I click OK I get: "Cannot Open Web App Name" "Web App Name could not be opened because it is not connected to the Internet" The following is added to the HTML file: <!DOCTYPE html> <html lang="en" manifest="scrts/offline.manifest"> and the offline.manifest is composed as such: CACHE MANIFEST ../pics/bkgnd_iphn_settings.png ../pics/mbl_btn_fb.png ../pics/mbl_btn_twt.png ../pics/icon_57_57_bg.png ../pics/icon_72_72_bg.png ../pics/icon_114_114_bg.png ../pics/icon_144_144_bg.png ../pics/splash_320_460_bg.png ../pics/splash_768_1004_bg.png ../pics/splash_1004_768_bg.png I got all instructions on composing it from here I also adjusted the .htaccess file to add this line: AddType text/cache-manifest .manifest Any idea what am I not doing right?

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• Webcast on using live upgrade

  - by Owen Allen

  Leon Shaner is doing a webcast next week, on Thursday Nov. 6 at 11 am EST, about updating Oracle Solaris in Ops Center using Live Upgrade. He's also written a blog post over on the Enterprise Manager blog about using Live Upgrade and and Oracle Solaris 11 Boot Environments, which goes into a lot of detail about the benefits, requirements, setup, and use of these features. To join the webconference, when it rolls around: Go to https://oracleconferencing.webex.com/oracleconferencing/j.php?ED=209834092&UID=1512097467&PW=NMTJjY2NkZjg0&RT=MiMxMQ%3D%3D If requested, enter your name and email address. If a password is required, enter the meeting password: oracle123 Click Join. To dial into the conference, dial 1-866-682-4770 (US/Canada) or go here for the numbers in other countries. The conference code is 7629343# and the security code is 7777#.

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• News from OpenWorld: Innovation Across Fusion Middleware Product Portfolio

  - by Tanu Sood

  Oracle today announced that it continues to drive innovation across its Oracle Fusion Middleware product suite and extend industry’s #1 business innovation platform for the enterprise and the cloud.   Innovations across Oracle Fusion Middleware product portfolio help customers and partners to innovate, cut costs, and reduce complexity. Oracle Fusion Middleware components include  Oracle SOA Suite, Oracle WebLogic Server, Oracle WebCenter, Oracle Business Intelligence, Oracle Identity Management and Oracle Data Integration. Additional Resources: Press Release: Oracle announces Identity Management 11g Release 2 Press Release: Oracle announces Oracle Identity Governance Suite Press Release: Oracle announces Oracle Privileged Account Manager Website: Oracle Identity Management On-Demand webcast: Identity Management 11gR2 Launch Oracle Magazine: Security on the Move

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• Does Agile (scrum) require one server environment?

  - by Matt W

  Is it necessary/recommend/best practice/any other positive to use only one server environment to perform all development, unit testing and QA? If so, is it then wise/part of Agile to then have only one staging environment before Live? Considering that this could mean internationally distributed teams of developers and testers in different time zones is this wise? This is something being implemented by our QA manager. The opinion put forward is that doing all the dev and testing on a single server is "Agile." The staging environment would be a second environment, and then live.

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• Is there a size limit when using UICollectionView as tiled map for iOS game?

  - by Alexander Winn

  I'm working on a turn-based strategy game for iOS, (picture Civilization 2 as an example), and I'm considering using a UICollectionView as my game map. Each cell would be a tile, and I could use the "didSelectCell" method to handle player interaction with each tile. Here's my question: I know that UICollectionViewCells are dequeued and reused by the OS, so does that mean that the map could support an effectively infinitely-large map, so long as only a few cells are onscreen at a time? However many cells were onscreen would be held in memory, and obviously the data source would take up some memory, but would my offscreen map be limited to a certain size or could it be enormous so long as the number of cells visible at any one time wasn't too much for the device to handle? Basically, is there any memory weight to offscreen cells, or do only visible cells have any impact?

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• Building Cloud Infrastructure? Don't Miss this Webcast with SEI

  - by Zeynep Koch

  WEBCAST: How did Oracle Linux Enable SEI to Save in Infrastructure Costs and Improve Business Response Date: Tuesday, October 30, 2012 Time: 9:00 AM PDT Using the Oracle technology stack, SEI, a leading provider of wealth management solutions, developed an innovative, global platform for its business. That platform is built on a highly integrated infrastructure, operating system, and middleware that allows the organization to scale with customer demand. In this Webcast, join SEI’s Martin Breslin as he discusses: Why and how SEI migrated from a mainframe-based infrastructure to an x86-based infrastructure on Oracle Linux Why SEI chose Oracle Linux, Oracle Enterprise Manager, and Oracle Real Application Cluster for its platform-as-a-service (PaaS) environment How Oracle Linux enabled SEI to save costs and improve response time Key success factors and lessons learned when deploying an enterprise cloud Speakers: Martin Breslin, Senior Infrastructure Architect, SEI Global Monica Kumar, Senior Director, Oracle Linux, Virtualization and MySQL Product Marketing  Register TODAY

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• How important is to sacrifice your free time for accomplishing goals? [closed]

  - by Darf Zon

  I was reading a book about XP programming and about agile teams. While I was reading, I saw this scenario. I've never worked with a development team (just in school). So I would like what do you opine on this situation: Your boss has asked you to deliver software in a time that can only be possible to meet the project team asking if you want to work overtime without pay. All team members have young children. Discuss whether it should accept this request from your boss or should persuade the team to give their time to the organization rather than their families. What could be significant factors in the decision? As a programmer, you are offered an upgrade as project manager, but his feeling is that you can have a more effective contribution in a technical role in one administrative. Write when you should accept that promotion. Somethimes, I sacrifice my free time for accomplishing hits at work, so it's very important to me to know your opinion base of your experience.

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• Forward to other domain with CNAME

  - by xybrek

  In my GoDaddy DNS manager, I made some A Record that points to *.mirror for my domain Now when I access URL 123.mirror.mydomain.com from the browser I can see that my app is loaded, and its all OK. My problem now is when doing a CNAME point to the URL above on another domain like this: Accessing 123.otherdomain.com which I expect to "forward to" 123.mirror.mydomain.com I only get this 404 error: The IP 173.194.71.121 is actually ghs.googlehosted.com What I am missing here? Why 123.otherdomain.com which points to 123.mirror.mydomain.com cannot open that page and I think google is handing the web page request?

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• Linux Mint Cinamon 17 Qiana, Xfce desktop background problem [on hold]

  - by Serj

  I've installed Xfce4 on my laptop which runs Linux Mint 17 with Cinamon default desktop. Everything works OK and I customized my lightweight Xfce, like change menu location and desktop background that it is similar to my Cinamon desktop and used it for a while. Suddenly after last restart my desktop background becomes black and there is no option for desktop background change when I right click on desktop. I should mention that xfdesktop & didn't help, which tells it's already running. Some icons like Computer, Home and Oracle VM that was already there is showing, but my Trash or other icons did not. I've tried everywhere in xfce4-settings-manager but could not get my desktop background back

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• URL-rewriting on Plesk using ISAPI_rewrite3 Lite

  - by Anusha

  I am using Plesk Windows based web server with Windows 2008 server OS with IIS-6 for my e-commerce website. I want to rewrite URLs for all dynamic pages, So I installed ISAPI_Rewrite 3 Lite on my web server also I had uploaded the .htaccess file with the basic rules as follows RewriteEngine on RewriteRule ^contact\.html$ contactus.php? [NC,R] I never worked before with ISAPI neither on URL- rewriting. My doubt is How should I proceed after installation. Should I upload .htaccess or httpd.conf file OR This s/w has ISAPI_Rewrite Manager which gives place to edit httpd.conf, Should I write rules on this. Anyways I had tried all these steps but unfortunately I couldn't find any remedies. Any immediate solution will be appreciable.

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• Compiz does not work with proprietary nvidia driver

  - by brandizzi

  I have a ThinkPad T420 with an NVidia Quadro video card. It crashes constantly when I close this lid (if you are curious..) and I suspect on a problem with nouveau drivers, so I installed the proprietary NVidia drivers. Howeer, when I install and use this driver, Compiz does not work. If I start a session with uses Compiz, no window manager/decorator is presented. I just can get Metacity working. Does anyone has any idea about what may be causing this problem?

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• How To Use USB Drives With the Nexus 7 and Other Android Devices

  - by Chris Hoffman

  The Nexus 7 may not have a lot of storage space – especially the original 8 GB model – but you can connect a USB drive to it if you want to watch videos or access other files. Unfortunately, Android doesn’t automatically mount USB drives by default. You’ll need to root your device to enable support for USB drives. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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• Control external monitor brightness

  - by remi

  Hello Ubuntu community, I can control the brightness of my DELL U2713HM connected with DisplayPort via the command: ddccontrol -p -r 0x10 -w 53 where in this example the number 53 represents the brightness level (range 0 to 100). But I don't know how to link the command to my brightness keys on my keyboard. I searched already, but just found answers to integrated laptop screens. In /sys/class/backlight is the folder acpi_video0 with some subfolders and files. The file actual_brightness contains a number from 0 to 20, which is changing when I press the brightness keys. How do I get my external monitor listed as a device in /sys/class/backlight ? PS: I am running a fresh Ubuntu 12.10 install with integrated graphics Intel HD4000.

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• interface changed after restart on Xubuntu

  - by Svetlana

  Something happened a few times after using Xubuntu since 1 month ago. A few times after i restarted my laptop the interface was totally changed. The icons from the panel were different and almost everything. It looked great, it had a grey interface, very nice icons, buttons were bigger and everything looked great. I have no idea what happened, i tried to find the same interface/theme from Settings Manager but without succes. Can anyone please tell me what happened or how can i use the grey interface? It dissapeared after i restarted the laptop. Thank you

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• Remove encryption from USB flash drive

  - by Timic

  It all started when I was attempting to format my PNY USB drive because it was full of junk. When it asked me what type of file system, I selected FAT but there was a checkbox below that said "Encrypt" and I accidently checked it and continue. I had no choice but to come up with a passphrase for it, and so I did, thinking I was able to remove that encryption. But after that at Disk Utility I thought I would find a "Remove Encryption" button or something like that but I didn't. I tried formatting it to remove the encryption but it gives me an error: Error Formatting, The device is busy" Detail>>> One or more block devices are holding /dev/sdb/. I am stuck, what should I do?

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• Convert Google Video URL [on hold]

  - by user3716328

  When i download a video from YouTube(Google docs or Google plus) with a download manager this what i get referer: http://www.youtube.com/watch?v=71zlOWbEoe8 address: http://r4---sn-5hnezn76.googlevideo.com/videoplayback?id=o-AAyCp6dqoOj_sUwGtSwE9J27TU7-iKHf4d209xDnuCee&signature=2EB6338E125E84AAA3736DBCEF6AC35451A2104A.1C29A8A9B830CDC9E4493D93A25BA62FF3672E4A&key=cms1&ipbits=0&fexp=3300091%2C3300111%2C3300130%2C3300137%2C3300164%2C3310366%2C3310648%2C3310698%2C3312169%2C907050%2C908562%2C913434%2C923341%2C924203%2C930008%2C932617%2C935501%2C939936%2C939937&ratebypass=yes&ip=41.230.222.50&upn=DO_DxWpYrpg&expire=1402102715&sparams=expire,gcr,id,ip,ipbits,itag,ratebypass,source,upn&itag=18&source=youtube&gcr=tn&redirect_counter=1&req_id=8a4c0009cb74c822&cms_redirect=yes&ms=nxu&mt=1402081178&mv=m&mws=yes And I want to know if i have the address is there a way to get the referer I mean if i have this : http ://r4---sn-5hnezn76.googlevideo. com/videoplayback?id...... how to get http ://www.youtube.com/watch?v=......... ?

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• How do I clear all gnome shell notifications?

  - by user19448

  I use Jupiter as a power manager. Now I get a good number of notifications from it. I do not have problem with the fact that I get all these notifications. I do however, want to be able to clear all gnome shell notifications with a few clicks. Currently, my entire bottom edge of the screen is filled with notifications and I do not wish to clear each item one by one. So my question is, how do I clear these notifications? If this is not possible in the ui, is it possible to write an extension to do it? Where should I suggest this feature to gnome developers? Gnome forums are almost dead now, the administrator has not activated my created account since 5 days!

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• Installing dgen removes Ubuntu-Desktop

  - by aliasbody

  I am trying to install "dgen" a Sega MegaDrive/Genesis emulator, available in the official Ubuntu repositories. But when I try to install, the package manager (USC or even apt-get), say's that he needs to remove those packages before installing : file-roller lintian ubuntu-desktop unzip winetricks Ubuntu always had problems with dependencies like this, and this was the main raison I started using Arch Linux instead of Ubuntu, but with the newest versions (mainly the 12.04 version), I was hopping that those kind of problems had complety dissapeared.. but no :S... So, How can I install this package without removing those packages ? And do I need to fill a bug report for this ?

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• Developing a computer system based on Nand2Tetris [on hold]

  - by Ryan

  I recently finished a book called Nand2Tetris (nand2tetris.org) where I built my own computer system from scratch with its own machine language, assembly code, and a high level language called Jack that's translated to Hack binary. However, I feel like the "computer" I built throughout the course of this book (called the Hack computer) is a bit too simple for various reasons: 1) There are only two registers (D and A), whereas most computers have much more 2) Peripheral devices like mouse and keyboard have to be directly implemented 3) Peripheral devices use a pre-planned shared memory map to communicate with the CPU instead of using interrupts (which aren't covered at all) 4) Jack (the high level language) code doesn't compile to Assembly code directly, instead it compiles to an intermediate language, which in turn gets translated to Assembly. 5) There is no ROM or permanent storage device, everything is stored in RAM 6) No support for colored monitor, networking or sound I would like to build a more complicated computer system now based on what I've learned from Nand2Tetris. Does anyone know of any good resources or books to get started on this? (BTW by computer system I mean software that can emulate the hardware of a virtual computer with its own unique instruction set)

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