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• installing ubuntu 10.04 over top 11.04

  - by Alex

  im looking to install 10.04 over top the 11.04 partition, it wouldnt let. keeps giving me a "root file system not found" error ever time i manually select partition. (i have a win7 partition) 11.04 popped up after upgrade that my hardware isnt supported for unity. and i cant boot into it, hangs up on purple screen right after boot menu. if anyone can post a link to a how to guide or put it on here, would be great? im trying to take advantage of my nvidia geforce gt 120m (its a laptop) to play around with cuda/c++ programming!

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• Releasing poorly written software...

  - by eddienotizzard

  I've made a poorly written, yet fully functioning website, in (shock, horror, shock) PHP. Everything works as expected, I've implemented the necessary security measures: http://php.net/manual/en/security.php and phpsec.org/projects/guide/ It's poorly written in the sense that it's a bunch of functions thrown together that do something...oddly enough I was consistent with the naming conventions. Would you release something you were not happy with, but worked? I would also like to point out that I don't collect much user information (username, email and password) is about it -- but it's not really the security part I'm worried about, it's the spaghetti code I've written.

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• Reminder: WebLogic Global, Virtual Developer Day November 5

  - by jeckels

  Just a quick reminder about the FREE virtual developer day focused on WebLogic (and Coherence) coming on November 5th. This day, with content tailored for developers, will guide you through tooling updates and best practices around creating applications with WebLogic and Coherence as target platforms. We'll also explore advances in how you can manage your build, deploy and ongoing management processes to streamline your application's life cycle. And of course, we'll conclude with some hands-on labs that ensure this isn't all a bunch of made-up stuff - get your hands dirty in the code!November 5, 20139am PT/12pm ETREGISTER NOW We're offering two tracks for your attendance, though of course you're free to attend any session you wish. The first will be for pure developers with sessions around developing for WebLogic with HTML5, processing live events with Coherence, and looking at development tooling. The second is for developers who are involved in the building and management processes as part of the application life cycle. These sessions focus on using Maven for builds, using Chef and Puppet for configuration and more.We look forward to seeing you there - don't forget to invite a friend!

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• Frame Buffer Objects vs calling TexCoord2f?

  - by sensae

  I'm learning the basics of OpenGL with lwjgl currently, and following a guide I've got textured quads that can move around a scene. I've been reading about Frame Buffer Objects, and I'm not really clear on their purpose and their benefit. My understanding is that I'll create a FBO with the texture I'd like, load the FBO, draw a quad, then unload the FBO. What would the technique I'm currently doing for texture management be called, and how does it differ from using FBOs? What are the benefits to using FBOs? How does it fit into the grand rendering scheme of things?

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• Updated copy of the OBIEE Tuning whitepaper

  - by inowodwo

  The Product Assurance team have released an updated copy of the OBIEE Tuning Whitepaper. You can find it on the PA blog https://blogs.oracle.com/pa/entry/test or via Support note OBIEE 11g Infrastructure Performance Tuning Guide (Doc ID 1333049.1) https://support.us.oracle.com/oip/faces/secure/km/DocumentDisplay.jspx?id=1333049.1&recomm=Y This new revised document contains following useful tuning items: 1.    New improved HTTP Server caching algorithm. 2.    Oracle iPlanet Web Server tuning parameters. 3.    New tuning parameters settings / values for OPIS/OBIS components.

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• How can I rescue a Lubuntu install?

  - by Ghost

  Quick recap: I was having a problem with hibernation so I check and the linuxswap partition is missing, showing an "unknown" chunk of drive where it was. Happened before, booted to the liveCD and used Gparted to reformat that partition back to swap. Then I boot........F---- grub rescue... MBR took care of the problem, except that now I'm back to Windows only. EVERY guide out there makes me reinstall Lubuntu from scratch, a waste of time considering it will take me at least a day to reinstall everything there. Can't I just fix grub like I did with the win MBR?

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• K3b - cdrecord has no permission

  - by user64386

  I use Ubuntu 12.04. Today I tried to burn an ISO file in a DVD-R disk using K3b. It used to work, but today, after one and a half minutes, it stopped saying that "cdrecord has no permission to open the device". I searched for a solution, and I found that I had to do something with k3bsetup. I tried to use it, but I had no idea what to do, and I couldn't find a guide, so I checked cdrecord and clicked apply. Now there is another error; it says "cdrecord returns an unknown error! (code 254)". What should I do?

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• Novice developer

  - by Shrikant

  Sir. I'm a student of B.Tech final year from the CSE branch. I'm using Ubuntu since the last 3 years. It gave me a lot of knowledge. So now I want to repay Ubuntu back by developing some apps for Ubuntu, but I don't know which language I should choose: Java, C or C++ or something else. So please, guide me how to start. I have intermediate knowlegde of C, C++ , Java & Linux scripts. So in which language should i start? I don't have any live software development knowledge so explain me everything. Thank you

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• Real World ADF - another new ADF book hits the stands

  - by Grant Ronald

  I'm pleased to report that yet another Oracle ADF book hits the bookstores this month.  One of my fellow Product Managers, Jobinesh, has written Oracle ADF Real World Developer's Guide.   I'm currently awaiting a copy for review and can't wait to get into this book.  Jobinesh is an incredibly smart and switched-on technical ADF guru and I'm convinced I'm going to learn a whole lot of tips and techniques from this book. Once I get my hands on a copy I'll be writing up a full review. As someone who has written an Oracle ADF book already, I know the effort that goes into something like that, so well done Jobinesh.

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• SSIS Basics: Using the Execute SQL Task to Generate Result Sets

  The Execute SQL Task of SSIS is extraordinarily useful, but it can cause a lot of difficulty for developers learning SSIS, or only using it occasionally. What it needed, we felt, was a clear step-by-step guide that showed the basics of how to use it effectively. Annette Allen has once again cleared the fog of confusion. NEW! Take the stress out of .NET deploymentEliminate the risk in deploying manually to live systems using Deployment Manager, the new tool from Red Gate. Try it now.

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• Can I use Ubuntu One Icons for 3rd party thingy?

  - by Joseph Mills

  So I am wondering what the guide lines are for using Ubuntu One icons as I have heard from a number of people that Ubuntu One has some propitiatory things to it. So I am not sure if I am to use there logo in something like this http://bazaar.launchpad.net/~josephjamesmills/ubuntutv/fan_art/download/josephjamesmills%40gmail.com-20120728145710-sy00cvq1ja8o9qad/ubuntuoneactive.png-20120728145613-jtjdupswpqiocpb2-266/ubuntuone-active.png If That is OK ? I know that this might be a silly question but I do not want to get myself in trouble.Thanks so much for reading this and helping me with a project that helps others ;)

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• What is a good method for coloring textures based on a palette in XNA?

  - by Bob

  I've been trying to work on a game with the look of an 8-bit game using XNA, specifically using the NES as a guide. The NES has a very specific palette and each sprite can use up to 4 colors from that palette. How could I emulate this? The current way I accomplish this is I have a texture with defined values which act as indexes to an array of colors I pass to the GPU. I imagine there must be a better way than this, but maybe this is the best way? I don't want to simply make sure I draw every sprite with the right colors because I want to be able to dynamically alter the palette. I'd also prefer not to alter the texture directly using the CPU.

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• How do you format arrays within parameters?

  - by joslinm

  I'm talking about something like this: echo $form->input('general_addresss', array( 'label' => 'Where will you go today?' 'format' => array('before', 'input', 'after', 'label', 'after', 'error') )); Do you start with one array parameter, then break a line? If it can't fit on a line, do you immediately break a line? After of which, do you do a set number of tabs over? What happens if an array within an array has lots of properties? Is there any particular guide you follow?

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• How do I get an Xstream mobile phone working as a modem?

  - by callmegus

  I bought a CDMA mobile phone that can use as modem, this http://smartfren.com/xstream/ and i wanna try it on my ubuntu plug usb , and run "lsusb" callmegus@Presario-CQ43-304AU:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 058f:a001 Alcor Micro Corp. Bus 003 Device 002: ID 1bbb:0106 T & A Mobile Phones Bus 003 Device 003: ID 15d9:0a4c Trust International B.V. USB+PS/2 Optical Mouse Bus 004 Device 002: ID 0a5c:21e3 Broadcom Corp. I successfully "modprobe" this device, and connect to internet, but it's disconnected somehow .. and i can recconect it. I try "lsusb" again .. and something went wrong, here Bus 003 Device 002: ID 1bbb:1000 T & A Mobile Phones I do "modprobe" again and again , but it still won't connect Please guide me

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• copy files to Nexus 4 on Kubuntu (13.04)

  - by cerr

  I know, this has been asked a few times already but I'm still having troubles to get files copied my new Nexus 4 phone mounted on my Kubuntu 13.04 machine. I followed the guide at: http://www.pocketables.com/2013/03/how-to-mount-the-lg-nexus-4-as-a-usb-drive-in-linux.html I would only get: $ cp -r /mnt/media/Albums/A\ Perfect\ Circle\ -\ Thirteenth\ Step/ . cp: accessing ‘.’: Transport endpoint is not connected reg@regDesktopHome:/media/nexus4/Internal storage/Music$ ls -l but thereafter , mount still shows it mounted: mtpfs on /media/nexus4 type fuse.mtpfs (rw,nosuid,nodev,allow_other) What's going on here? Thanks for the assistance!

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• UbuntuGuide Fails

  - by kiloseven

  How do I report a problem with the Ubuntu Guide website? http://ubuntuguide.org/images/UbuntuGuideSaucyPt1.epub is linked from http://ubuntuguide.org/wiki/Ubuntu_Saucy_Repositories under 'eBook Version' above the list of contents at top of page,. However, that link is 404'd. Also tried http://ubuntuguide.org/images/UbuntuGuideSaucy.epub which also fails. So, where do we report Fail at ubuntuguide.org? I see nowhere there to so do. I have also tried, twice on separate days, to register there, but never get the confirmation email. Anyone have a suggestion?

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• Best practices for Persona development

  - by user12277104

  Over the years, I have created a lot of Personas, I've co-authored a new method for creating them, and I've given talks about best practices for creating your own, so when I saw a call for participation in the OpenPersonas project, I was intrigued. While Jeremy and Steve were calling for persona content, that wasn't something I could contribute -- most of the personas I've created have been proprietary and specific to particular domains of my employers. However, I felt like there were a few things I could contribute: a process, a list of interview questions, and what information good personas should contain. The first item, my process for creating data-driven personas, I've posted as a list of best practices. My next post will be the list of 15 interview questions I use to guide the conversations with people whose data will become the personas. The last thing I'll share is a list of items that need to be part of any good persona artifact -- and if I have time, I'll mock them up in a template or two. 

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• Free book from Microsoft: - Exploring CQRS and Event Sourcing

  - by TATWORTH

  At http://www.microsoft.com/en-us/download/details.aspx?id=34774, Microsoft are providing a free book on Exploring CQRS and Event Sourcing"This guide is focused on building highly scalable, highly available, and maintainable applications with the Command & Query Responsibility Segregation and the Event Sourcing architectural patterns. It presents a learning journey, not definitive guidance. It describes the experiences of a development team with no prior CQRS proficiency in building, deploying (to Windows Azure), and maintaining a sample real-world, complex, enterprise system to showcase various CQRS and ES concepts, challenges, and techniques. The development team did not work in isolation; we actively sought input from industry experts and from a wide group of advisors to ensure that the guidance is both detailed and practical. "

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• MacBookPro 7,1 can only see one cpu

  - by gozzilli

  On a MacBookPro 7,1 running ubuntu 11.10, System monitor only sees 1 core (instead of 2). cat /proc/cpuinfo | grep 'cpu cores' also gives: cpu cores : 1 I followed this guide and added acpi_apic_instance=2 to the line with GRUB_CMDLINE_LINUX_DEFAULT, but that doesn't seem to change the situation. What can I do? I'm using rEFIt, installed under MacOS, and running in dual boot with MacOS. After the rEFIT menu, I'm still presented with the GRUB menu (I'm assuming that's normal). I saw similar posts on this matter, but could not fix my problem with what they suggested. EDIT: With the method mentioned above the computer runs sometimes with 1 core and other times with 2. Why is that? How can it be fixed?

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• Desktop Fun: Feathered Friends Wallpaper Collection

  - by Asian Angel

  Birds can serve as wonderful sources of inspiration with their varied colors, song, and feats of flight. Today we have a beautiful flock of birds that you can add to your desktop with our Feathered Friends Wallpaper collection Latest Features How-To Geek ETC How to Enable User-Specific Wireless Networks in Windows 7 How to Use Google Chrome as Your Default PDF Reader (the Easy Way) How To Remove People and Objects From Photographs In Photoshop Ask How-To Geek: How Can I Monitor My Bandwidth Usage? Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware Comix is an Awesome Comics Archive Viewer for Linux Get the MakeUseOf eBook Guide to Speeding Up Windows for Free Need Tech Support? Call the Star Wars Help Desk! [Video Classic] Reclaim Vertical UI Space by Adding a Toolbar to the Left or Right Side of Firefox Androidify Turns You into an Android-style Avatar Reader for Android Updates; Now with Feed Widgets and More

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• E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution)

  - by B Jo

  I would like to upgrade to Ubuntu 13.04 since almost a month now. Am a pretty novice in linux and in software in general. My /boot is full : bijo@bijo-AMILO-Xi-2428:~$ df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/ubuntu-root 228G 7.7G 208G 4% / udev 1001M 4.0K 1001M 1% /dev tmpfs 404M 836K 403M 1% /run none 5.0M 0 5.0M 0% /run/lock none 1008M 156K 1008M 1% /run/shm none 100M 48K 100M 1% /run/user /dev/sda1 228M 222M 0 100% /boot I tried the : sudo apt-get purge $( dpkg --list | grep -P -o "linux-image-\d\S+" | grep -v $(uname -r | grep -P -o ".+\d") ) but i got this as reply E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). infact I'm going round and round ... Can someone guide me through please? Thanks in advance for ur time

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• A real noob question

  - by Jaymz

  I have a Hp mini netbook that has been wiped clean, there is nothing other than the bios on it, it has no DVD and I don't have an external DVD. I can change the boot order to boot from a usb device. I have downloaded ubuntu-12.04.1-desktop-i386 I have one of these http://www.kikatek.com/P100600/34609-IOMEGA-250gb-Select-Portable-HDD-2-5-USB?source=froogle currently formatted to NTFS but I can format to exFAT I have tried Linuxlive USB creator, all that managed to do was dual boot the desktop pc that I'm working off, and when booting on the wiped clean netbook, just left me with a black screen with a blinking cursor I have also tried Unetbootin, this managed to change my 'My Computer' icon to Install Ubuntu (C:) and now again, my desktop pc dual boots with the Wubi software, the Unetbootin, wouldn't let me select my external drive to write to Please I'm a complete idiot, i need a super idiots guide to doing this Regards Jaymz

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• Instapaper Updates; Sports Native Social Media Sharing, Browsing, and More

  - by Jason Fitzpatrick

  Popular web content manager Instantpaper has updated to version 3.0 and brings a host of new features like native support for social media sharing, a recommendation system, in-app web browsing and more. Last year we shared a detailed guide with you on how to use Instapaper to save content from the web to your iOS device for later reading–definitely check it out if you’re unfamiliar with Instapaper. Some of the new features in Instapaper 3.0 include a social recommendation system where you can follow other Instapaper users and see the articles they are liking/sharing, native support for sharing to Twitter, Facebook, and other social media systems, smart rotation lock on the display, and more efficient article downloading and storage. Check out the link below to read a full rundown of the new features on the Instapaper blog. Instapaper 3.0 Is Here! [Instapaper via O'Reilly Radar] HTG Explains: What Are Character Encodings and How Do They Differ?How To Make Disposable Sleeves for Your In-Ear MonitorsMacs Don’t Make You Creative! So Why Do Artists Really Love Apple?

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• Oracle Enterprise JavaBeans (EJB) Developer Certification

  - by user33716

  I would like to gain the "Oracle Enterprise JavaBeans (EJB) Developer" certification. According to this page I have to take a number of classes each of which costs up to a couple of thousand GB£. Is this really the only way to obtain the certification? Can I not just buy a certification guide book from amazon and just sit the requisite tests? At the moment I have no Java EE experience and I'm finding it impossible to get interviews for the jobs I'm interested in. I'm hoping this will at least help me get my foot through the door.

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• How does URL Rewriting affect SEO?

  - by Costa

  The following paragraph is from SEO Google Guide Google is good at crawling all types of URL structures, even if they're quite complex, but spending the time to make your URLs as simple as possible for both users and search engines can help. Some webmasters try to achieve this by rewriting their dynamic URLs to static ones; while Google is fine with this, we'd like to note that this is an advanced procedure and if done incorrectly, could cause crawling issues with your site. What makes URL re-writing implementation incorrect for GoogleBot? I am using Asp.net 3.5 framework.

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