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• Hidden Gems: Accelerating Oracle Data Integrator with SOA, Groovy, SDK, and XML

  - by Alex Kotopoulis

  On the last day of Oracle OpenWorld, we had a final advanced session on getting the most out of Oracle Data Integrator through the use of various advanced techniques. The primary way to improve your ODI processes is to choose the optimal knowledge modules for your load and take advantage of the optimized tools of your database, such as OracleDataPump and similar mechanisms in other databases. Knowledge modules also allow you to customize tasks, allowing you to codify best practices that are consistently applied by all integration developers. ODI SDK is another very powerful means to automate and speed up your integration development process. This allows you to automate Life Cycle Management, code comparison, repetitive code generation and change of your integration projects. The SDK is easily accessible through Java or scripting languages such as Groovy and Jython. Finally, all Oracle Data Integration products provide services that can be integrated into a larger Service Oriented Architecture. This moved data integration from an isolated environment into an agile part of a larger business process environment. All Oracle data integration products can play a part in thisracle GoldenGate can integrate into business event streams by processing JMS queues or publishing new events based on database transactions. Oracle GoldenGate can integrate into business event streams by processing JMS queues or publishing new events based on database transactions. Oracle Data Integrator allows full control of its runtime sessions through web services, so that integration jobs can become part of business processes. Oracle Data Service Integrator provides a data virtualization layer over your distributed sources, allowing unified reading and updating for heterogeneous data without replicating and moving data. Oracle Enterprise Data Quality provides data quality services to cleanse and deduplicate your records through web services.

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• Team Software Development using Ruby on Rails

  - by Panoy

  I used to work alone on small to medium sized programming projects before and have no experience working in a team environment. Currently, there will be 3 of us in an in-house software development team that is tasked to develop a number of software for an academic institution. We have decided to use the web for the majority of the projects and are planning to choose Ruby on Rails for this and I would like to ask for your inputs, advices and approaches with regards to software development as a team using the RoR web framework. One thing that has really confounded me is how you divide the programming tasks of a project if there are 3 of you that are really doing the coding. It’s obvious that we as developers approach a problem in a modular way and finish it one after another. If the project consists of 3 modules, should each one of us focus on each of those modules? Would it be faster that way? How about if the 3 of us would focus on one module first (that’s what I really prefer). Is using a distributed version control system such as Git the answer to this type of problem? Please don’t forget to put your tips and experiences with regards to team software development. Cheers!

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• Where to Start?

  - by freemann098

  my name is Chase. I've been programming for over 3 years now and I've made very little progress towards game development. I blame myself for it due to reasons. I have experience in many languages such as C++, C#, and Java. I have a little bit of knowledge in JavaScript/HTML and Python. My question is where to start on actually understanding jumping into game development. Whenever I watch game development tutorials it mostly makes sense until points of things like OpenGL or advanced topics that make no sense at all. An example is something like glOrhho Matrix or whatever. Videos either don't explain things like this or they're not explained very well. Do I not know enough basics? I find myself always copying code from a video but understanding very little of it. It's like i'm memorizing things I don't understand which makes it hard to program at all. If I were to want to get to the point where I could write my own game engine or just a game by myself in general in C++ using at the most documentation how would I start at mastering to that level. Should I learn C first, or get really good at basics in general with C++. I know there is a similar posted question on this site but it's not the same due to the fact the person asking the question has a well knowledge level in programming. I'm stuck in a loop of learning the same things but if I go farther I don't understand. I'm stuck in the same spot and need to make progress.

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• Is individual code ownership important?

  - by Jim Puls

  I'm in the midst of an argument with some coworkers over whether team ownership of the entire codebase is better than individual ownership of components of it. I'm a huge proponent of assigning every member of the team a roughly equal share of the codebase. It lets people take pride in their creation, gives the bug screeners an obvious first place to assign incoming tickets, and helps to alleviate "broken window syndrome". It also concentrates knowledge of specific functionality with one (or two) team members making bug fixes much easier. Most of all, it puts the final say on major decisions with one person who has a lot of input instead of with a committee. I'm not advocating for requiring permission if somebody else wants to change your code; maybe have the code review always be to the owner, sure. Nor am I suggesting building knowledge silos: there should be nothing exclusive about this ownership. But when suggesting this to my coworkers, I got a ton of pushback, certainly much more than I expected. So I ask the community: what are your opinions on working with a team on a large codebase? Is there something I'm missing about vigilantly maintaining collective ownership?

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• Hijacking ASP.NET Sessions

  - by Ricardo Peres

  So, you want to be able to access other user’s session state from the session id, right? Well, I don’t know if you should, but you definitely can do that! Here is an extension method for that purpose. It uses a bit of reflection, which means, it may not work with future versions of .NET (I tested it with .NET 4.0/4.5). 1: public static class HttpApplicationExtensions 2: { 3: private static readonly FieldInfo storeField = typeof(SessionStateModule).GetField("_store", BindingFlags.NonPublic | BindingFlags.Instance); 4:  5: public static ISessionStateItemCollection GetSessionById(this HttpApplication app, String sessionId) 6: { 7: var module = app.Modules["Session"] as SessionStateModule; 8:  9: if (module == null) 10: { 11: return (null); 12: } 13:  14: var provider = storeField.GetValue(module) as SessionStateStoreProviderBase; 15:  16: if (provider == null) 17: { 18: return (null); 19: } 20:  21: Boolean locked; 22: TimeSpan lockAge; 23: Object lockId; 24: SessionStateActions actions; 25:  26: var data = provider.GetItem(HttpContext.Current, sessionId.Trim(), out locked, out lockAge, out lockId, out actions); 27:  28: if (data == null) 29: { 30: return (null); 31: } 32:  33: return (data.Items); 34: } 35: } As you can see, it extends the HttpApplication class, that is because we need to access the modules collection, for the Session module. Use with care!

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• Compiling custom kernel 3.7.x lowlatency on Ubuntu 12.04

  - by FlabbergastedPickle

  All, I have a peculiar problem with trying to compile a lowlatency flavor of the latest 3.7 kernel. I retrieved the prepatched source from the launchpad using bzr, compiled it using the usual make-kpkg using the current config file plus default options for the rest, installed the kernel and booted into it. Everything works except for the fglrx and wl drivers that I had to install in the original 12.04 lowlatency kernel. So, I tried recompiling these and succeeded with both of them (no errors were reported)--wl driver required a minor adjustment to system.h include while latest fglrx 12.11 beta11 (released yesterday, Dec. 3rd, 2012) compiled without the hitch. Yet, when I try to modprobe either module (both having in common the fact that they were built after the kernel, fglrx as a deb, and wl via the usual make/make install), I get "FATAL: no MODULENAME module found" (MODULENAME being either wl or fglrx). The graphic driver watermark shows 3D crossed out and "for testing purposes" (or "unsupported hardware," can't remember), and no fglrx or wl is loaded. More mysteriously, dmesg shows no attempt on kernel's behalf to load the said drivers, even though they are clearly in the right /lib/modules/KERNEL_VERSION folder. How is this possible? Has something fundamentally changed in 3.7 kernel that would prevent modprobing of these? I know that there is driver signing option that was merged recently but as far as I could tell the kernel config file generated by the build process had that disabled. OTOH, while building wl driver, I did get a warning that the driver was not signed... Then again, even if the kernel disallowed loading of those modules, shouldn't dmesg reflect that? Any thoughts on this one are most appreciated.

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• Update kernel patch for VMware Player 4.0.3

  As I stated some days ago, after upgrading to Ubuntu Precise Pangolin, aka 12.04 LTS, I had a minor obstacle with VMware products. Today, VMware offered to upgrade to Player 4.0.3 due to security-related reasons. Initially, I thought that this update might have the patch for kernel 3.2.0 integrated but sadly that is not the case. 'Hacking' the kernel patch My first intuitive try to run the existing patch against the sources of VMware Player 4.0.3 failed, as the patch by Stefano Angeleri (weltall) is originally written explicitely against Workstation 8.0.2 and Player 4.0.2. But this is nothing to worry about seriously. Just fire up your favourite editor of choice and modify the version signature for VMware Player, like so: nano patch-modules_3.2.0.sh And update line 8 for the new version: plreqver=4.0.3 Save the shell script and run it as super-user (root): sudo ./patch-modules_3.2.0.sh In case that you previously patched your VMware sources you have to remove some artifacts beforehand. Otherwise, the patch script will inform you like so: /usr/lib/vmware/modules/source/.patched found. You have already patched your sources. Exiting In that case, simply remove the 'hidden' file and run the shell script again: sudo rm /usr/lib/vmware/modules/source/.patchedsudo ./patch-modules_3.2.0.sh To finalise your installation either restart the vmware service or reboot your machine. On first start VMware will present you their EULA which you have to accept, and everything gets back to normal operation mode. Currently, I would assume that in case of VMware Workstation 8.0.3 you can follow the same steps as just described.

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• ASP.NET MVC 3 (C#) Software Architecture

  - by ryanzec

  I am starting on a relatively large and ambitious ASP.NET MVC 3 project and just thinking about the best way to organize my code. The project is basically going to be a general management system that will be capable of supporting any type management system whether it be a blogging system, cms, reservation system, wikis, forums, project management system, etc…, each of them being just a separate 'module'. You can read more about it on my blog posted here : http://www.ryanzec.com/index.php/blog/details/8 (forgive me, the style of the site kinda sucks). For those who don't want to read the long blog post the basic idea is that the core system itself is nothing more than a users system with an admin interface to manage the users system. Then you just add on module as you need them and the module I will be creating is a simple blog post to test it out before I move on to the big module which is a project management system. Now I am just trying to think of the best way to structure this so that it is easy for users to add in there own modules but easy for me to update to core system without worrying about the user modifying the core code. I think the ideal way would be to have a number of core projects that user is specifically told not to modify otherwise the system may become unstable and future updates would not work. When the user wants to add in there own modules, they would just add in a new project (or multiple projects). The thing is I am not sure that it is even possible to use multiple projects all with their own controllers, razor view template, css, javascript, etc... in one web application. Ideally each module would have some of it own razor view templates, css, javascript, image files and also need access to some of the core razor view templates, css, javascript, image files which would is in a separate project. It is possible to have 1 web application run off of controllers, razor view templates, css, javascript, image files that are store in multiple projects? Is there a better was to structure this to allow the user to easily add in module with having to modify the core code?

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• VMware Kernel Module Updater hangs on Ubuntu 13.04

  VMware Player has a nice auto-detection of kernel changes, and requests the user to compile the required modules in order to load them. This happens from time to time after a regular update of your system. Usually, the dialog of VMware Kernel Module Updater pops up, asks for root access authentication, and completes the compilation. VMware Player or Workstation checks if modules for the active kernel are available. In theory this is supposed to work flawlessly but in reality there are pitfalls occassionally. With the recent upgrade to Ubuntu 13.04 Raring Ringtail and the latest kernel 3.8.0-21 the actual VMware Kernel Module Updater simply disappeared and the application wouldn't start as expected. When you launch VMware Player as super user (root) the dialog would stall like so: VMware Kernel Module Updater stalls while stopping the services Prior to version 5.x of VMware Player or version 7.x of VMware Workstation you would run a command like: $ sudo vmware-config.pl to resolve the module version conflict but this doesn't work anyway. Solution Instead, you have to execute the following line in a terminal or console window: $ sudo vmware-modconfig --console --install-all Those switches are (as of writing this article) not documented in the output of the --help switch. But VMware already documented this procedure in their knowledge base: VMware Workstation stops functioning after updating the kernel on a Linux host (1002411). Update As of today I had the first kernel upgrade to version 3.8.0-22 in Ubuntu 13.04. Don't even try it without vmware-modconfig...

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• Error while installing Komparator4

  - by Lucio

  I downloaded Komparator source from this page. The INSTALL file in the source say the following: Unpack komparator4-xxx.tar.bz2, and open a shell inside this directory mkdir build cd build cmake -DCMAKE_INSTALL_PREFIX=`kde4-config --prefix` .. make sudo make install I unpacked the file, make the directory, entered this, but when I have tried to cmake (sentece Nº3) the terminal print the following errors disabling me to make & install: CMake Error at /usr/share/cmake-2.8/Modules/FindKDE4.cmake:98 (MESSAGE): ERROR: cmake/modules/FindKDE4Internal.cmake not found in /home/lucio/.kde/share/apps;/usr/share/kde4/apps Call Stack (most recent call first): CMakeLists.txt:2 (find_package) CMake Warning (dev) in CMakeLists.txt: No cmake_minimum_required command is present. A line of code such as cmake_minimum_required(VERSION 2.8) should be added at the top of the file. The version specified may be lower if you wish to support older CMake versions for this project. For more information run "cmake --help-policy CMP0000". This warning is for project developers. Use -Wno-dev to suppress it. -- Configuring incomplete, errors occurred! What mean this errors and how can I fix it?

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• Weird 302 Redirects in Windows Azure

  - by Your DisplayName here!

  In IdentityServer I don’t use Forms Authentication but the session facility from WIF. That also means that I implemented my own redirect logic to a login page when needed. To achieve that I turned off the built-in authentication (authenticationMode="none") and added an Application_EndRequest handler that checks for 401s and does the redirect to my sign in route. The redirect only happens for web pages and not for web services. This all works fine in local IIS – but in the Azure Compute Emulator and Windows Azure many of my tests are failing and I suddenly see 302 status codes where I expected 401s (the web service calls). After some debugging kung-fu and enabling FREB I found out, that there is still the Forms Authentication module in effect turning 401s into 302s. My EndRequest handler never sees a 401 (despite turning forms auth off in config)! Not sure what’s going on (I suspect some inherited configuration that gets in my way here). Even if it shouldn’t be necessary, an explicit removal of the forms auth module from the module list fixed it, and I now have the same behavior in local IIS and Windows Azure. strange. <modules>   <remove name="FormsAuthentication" /> </modules> HTH Update: Brock ran into the same issue, and found the real reason. Read here.

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• Free vouchers to become a certified ADF or WebLogic Implementation Specialist

  - by JuergenKress

  For all WebLogic & ADF experts, we offer 100 free vouchers worth $195 to become an Oracle certified expert. To receive a WebLogic & ADF voucher please send an e-mail with the screenshot of your WebLogic Server 12c PreSales Specialist or ADF 11g PreSales Specialist certificate to [email protected] including your Name, Company, e-mail and Country with the e-mail subject free WebLogic & ADF voucher! WebLogic ADF Pre-Sales assessment (free online test) Preparation: WebLogic 12c PreSales Specialist (OPN account required – need help?) ADF 11g PreSales Specialist (OPN account required – need help?) Implementation assessment Preparation: WebLogic 12c Implementation Specialist WebLogic Bootcamp training material (Community membership required) WebLogic Knowledge Zone Overview ADF 11g Implementation Specialist ADF 11g bootcamp training material (Community membership required) ADF Knowledge Zone Overview Free vouchers are reserved for partners from Europe, Middle East and Africa. Any other countries please contact your local partner manager! WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Wiki Technorati Tags: Specialization,ADF certified,WebLogic certification,education,free exam,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

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• Is individual code ownership important?

  - by Jim Puls

  I'm in the midst of an argument with some coworkers over whether team ownership of the entire codebase is better than individual ownership of components of it. I'm a huge proponent of assigning every member of the team a roughly equal share of the codebase. It lets people take pride in their creation, gives the bug screeners an obvious first place to assign incoming tickets, and helps to alleviate "broken window syndrome". It also concentrates knowledge of specific functionality with one (or two) team members making bug fixes much easier. Most of all, it puts the final say on major decisions with one person who has a lot of input instead of with a committee. I'm not advocating for requiring permission if somebody else wants to change your code; maybe have the code review always be to the owner, sure. Nor am I suggesting building knowledge silos: there should be nothing exclusive about this ownership. But when suggesting this to my coworkers, I got a ton of pushback, certainly much more than I expected. So I ask the community: what are your opinions on working with a team on a large codebase? Is there something I'm missing about vigilantly maintaining collective ownership?

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• Fusion HCM in Boots

  - by Kristin Rose

  These boots are made for walking, and that’s just what they’ll do…Of course by boots, we’re referring to Oracle’s HCM Boot Camps for OPN members, which offer a hands-on approach to learning about Oracle Fusion HCM and Taleo positioning and capabilities. Those who attend an Oracle HCM boot camp will be prepared to achieve Oracle Fusion HCM Presales Specialist status, discuss Oracle Fusion HCM with customers to build pipeline, and complete competency criteria toward Oracle Fusion HCM 11g Specialization! This in-person event offers expert-led sessions, discussion, and hands-on activities meaning you will get the information quicker and remember it better! Plus, we think a free lunch is always a good thing. As a next step, all interested partners should: Obtain self-service knowledge from the Oracle Fusion Human Capital Management 11g PreSales Specialist Guided Learning Path. Become a Specialist by completing the Oracle Fusion Human Capital Management 11g PreSales Specialist Assessment . Contact their regional Oracle Alliances & Channels point-of-contact to learn more about these free OPN Boot Camp events, and the opportunity to attend the next one. We know you’ll be strutting your stuff after you've gained the knowledge and expertise to become Oracle Fusion HCM Specialized! Check it out! The OPN Communications Team 

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• Which approach is the most maintainable?

  - by 2rs2ts

  When creating a product which will inherently suffer from regression due to OS updates, which of these is the preferable approach when trying to reduce maintenance cost and the likelihood of needing refactoring, when considering the task of interpreting system state and settings for a lay user? Delegate the responsibility of interpreting the results of inspecting the system to the modules which perform these tasks, or, Separate the concerns of interpretation and inspection into two modules? The first obviously creates a blob in which a lot of code would be verbose, redundant, and hard to grok; the second creates a strong coupling in which the interpretation module essentially has to know what it expects from inspection routines and will have to adapt to changes to the OS just as much as the inspection will. I would normally choose the second option for the separation of concerns, foreseeing the possibility that inspection routines could be re-used, but a developer updating the product to deal with a new OS feature or something would have to not only write an inspection routine but also write an interpretation routine and link the two correctly - and it gets worse for a developer who has to change which inspection routines are used to get a certain system setting, or worse yet, has to fix an inspection routine which broke after an OS patch. I wonder, is it better to have to patch one package a lot or two packages, each somewhat less so?

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• Develop in trunk and then branch off, or in release branch and then merge back?

  - by Torben Gundtofte-Bruun

  Say that we've decided on following a "release-based" branching strategy, so we'll have a branch for each release, and we can add maintenance updates as sub-branches from those. Does it matter whether we: develop and stabilize a new release in the trunk and then "save" that state in a new release branch; or first create that release branch and only merge into the trunk when the branch is stable? I find the former to be easier to deal with (less merging necessary), especially when we don't develop on multiple upcoming releases at the same time. Under normal circumstances we would all be working on the trunk, and only work on released branches if there are bugs to fix. What is the trunk actually used for in the latter approach? It seems to be almost obsolete, because I could create a future release branch based on the most recent released branch rather than from the trunk. Details based on comment below: Our product consists of a base platform and a number of modules on top; each is developed and even distributed separately from each other. Most team members work on several of these areas, so there's partial overlap between people. We generally work only on 1 future release and not at all on existing releases. One or two might work on a bugfix for an existing release for short periods of time. Our work isn't compiled and it's a mix of Unix shell scripts, XML configuration files, SQL packages, and more -- so there's no way to have push-button builds that can be tested. That's done manually, which is a bit laborious. A release cycle is typically half a year or more for the base platform; often 1 month for the modules.

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• Oracle Endeca "Getting Started" Partner Guide

  - by Grant Schofield

  For partners looking for a concise step by step guide to getting started with Oracle Endeca Information Discovery, here it is to help you get started as quickly as possible. Step 1: Join the Knowledge Zone as a company and an individual - this will give you a) the right to resell Oracle Endeca ID, and b) notice of any free / subsidised training events in your region Step 2: For a quick general overview & positioning see the following article, in particular the Agile BI Video series which are useful in sharing with prospective clients. Also find a link to the official OEID Data Sheet. Step 3: For a more detailed overview there is a live recorded OEID partner webcast with downloadable slides. In conjunction with this, your sales / presales team have free access to the official OEID Partner Playbook as well as the full Oracle price book. Step 4: Download the OEID software and install. Please be aware you will need a 64-bit machine & a 64-bit Operating System. A useful solution for partners that have a 32-bit Operating System is to use Oracle's free VirtualBox software to quickly and easily create a Linux image and install on that. Step 5: Attend a free / subsidised training event in your region. Please join the Knowledge Zone as an Individual (opt in) to be informed of these. We will also publish these via the blog Things are moving fast, so please be aware that the team are working hard to produce more and more material such as downloadable data sets (structured / unstructured), a downloadable image, access to demos, and over the next few weeks we will update this article as soon as new material becomes available!

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• I Can't run the Netbeans but I installed successfully

  - by David

  I'm new to Ubuntu as well as Netbeans. I installed Netbeans, and I've made sure to install all the JDKs and JREs I could find. It installed without errors. I also saw this question and made sure I followed all the instructions there as well. I never got any error messages of any kind. So far as I know, it installed okay. However, when I try to run Netbeans, I get the message in the bottom of the Netbeans IDE like this: ant -f /root/NetBeansProjects/samp1 -Djsp.includes=/root/NetBeansProjects/samp1/build/web/one.jsp -DforceRedeploy=false -Dclient.urlPart=/one.jsp -Ddirectory.deployment.supported=true -Djavac.jsp.includes=org/apache/jsp/one_jsp.java -Dnb.wait.for.caches=true run /root/NetBeansProjects/samp1/nbproject/build-impl.xml:774: The libs.CopyLibs.classpath property is not set up. This property must point to org-netbeans-modules-java-j2seproject-copylibstask.jar file which is part of NetBeans IDE installation and is usually located at <netbeans_installation>/java<version>/ant/extra folder. Either open the project in the IDE and make sure CopyLibs library exists or setup the property manually. For example like this: ant -Dlibs.CopyLibs.classpath=a/path/to/org-netbeans-modules-java-j2seproject-copylibstask.jar BUILD FAILED (total time: 0 seconds)

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• In what fields do programming and Business Sciences intersect? [on hold]

  - by Alainus

  One note of clarification: I'm getting a lot of comments saying that this question is too personal, too relative, subjective, and that career-path questions get quickly deleted. This is not a question about me or my career. This question is just what the title says: What fields exist that converge programming and business. Now the question: I read this answer regarding off-topic questions, and I was afraid this might be, so I'll try to keep it general and helpful for others. Also, this one has a similar background but formulates a different question from it. I have a Business Administration degree, but I've programmed since I can remember, and it's been my only job for years. However, my problem is the same that the majority of "amateuressional" programmers have: - Incomplete knowledge of the fundamentals. - Anxiety to keep up. - Feeling of not making anything useful of "the other degree". - Afraid of finally becoming a jack of all trades (master of none). Which further studies (specific degrees or fields) exist that allow a person with a BS degree converge into a programming career, without having to sacrifice coding, allowing to further expand the knowledge of C.S. fundamentals, and also without completely sacrificing the first?

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• What individual needs to be aware when signing a NDA with client?

  - by doNotCheckMyBlog

  I am very new to IT industry and have no prior experience. However I came into contact with a party who is gear to build a mobile application. But, they want me to sign NDA (No Disclosure Agreement). The definition seems vague, The following definitions apply in this Agreement: Confidential Information means information relating to the online and mobile application concepts discussed and that: (a) is disclosed to the Recipient by or on behalf of XYZ; (b) is acquired by the Recipient directly or indirectly from XYZ; (c) is generated by the Recipient (whether alone or with others); or (d) otherwise comes to the knowledge of the Recipient, When they say otherwise comes to the knowledge of the recipient. Does it mean if I think of any idea from my own creative mind and which is similar to their idea then it would be a breach of this agreement? and also is it okay to tell to include application name in definition as currently to me it sounds like any online of mobile application concept they think I should not disclose it to anybody. "Confidential Information means information relating to the online and mobile application concepts discussed and that:" I am more concerned about this part, Without limiting XYZ’s rights at law, the Recipient agrees to indemnify XYZ in respect of all claims, losses, liabilities, costs or expenses of any kind incurred directly or indirectly as a result of or in connection with a breach by it or any of its officers, employees, or consultants of this Agreement. Is it really common in IT industry to sign this agreement between client and developer? Any particular thing I should be concerned about?

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• Silverlight Developer needs ASP.NET MVC Training [on hold]

  - by Peet Brits

  With Silverlight on the way out, our company wants to embrace HTML5 and related technologies. Background: Our Silverlight project did everything from generating its own models (or data contracts), sending it over WCF, tracking changes, with a whole deal of back-end code to make the ride smoother, but often also cluttered and more complex. Most of the original developers for this project are gone, and we want to embrace something new for future projects. Having done this very useful MVC Jump Start course at Microsoft Virtual Academy, we are all fired up for the next project. The problem is that we have very little in-depth knowledge of all the many different components. The most important hereof is probably Entity Framework, and (for later) Web API. I suppose the best place to start is at the Microsoft ASP.NET websites. Are there any other suggestions for learning from more experienced developers? I am a senior developer, but my knowledge of ASP.NET MVC (and related) is very limited. PS: We have a project deadline at the end of this month.

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• How to customize the initrd embedded in or coming with the kernel image

  - by STATUS_ACCESS_DENIED

  I would like to add some tools and not just kernel modules into the initrd (initramfs-based). Now I'm aware of how to unpack and how to pack the initrd with cpio and have even written a hook for /etc/initramfs-tools/hooks in the past to integrate a third-party kernel module. However, while the available script libraries seem to be geared towards the integration of modules, none of them seems to be for integration of other entities (in particular programs and their dependencies). What options do I have to automate the integration of some useful tools for recovery into the initrd? I'm talking about the "rescue" system that the system drops into if it is unable to mount the root drive given to it by the boot loader. Please note that I don't want the SquashFS approach as is used for Live-CDs because for the issue at hand it will be by far sufficient to include some relatively small tools that aid in recovery of the system (when it gets stuck in initrd and can't boot further). Also, the machines when they run into the issue that we have had in the past tend to boot into the rescue system, but there a few tools are missing to kick the system back on trail ...

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• I can't hear any sounds on ubuntu 11.10 on Dell inspiron N5010

  - by Ahmed

  I have a problem that I can't hear any sounds and I don't know where to start. I did the following : lspci -v | grep -A7 -i "audio" 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06) Subsystem: Dell Device 0447 Flags: bus master, fast devsel, latency 0, IRQ 48 Memory at fbf00000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: HDA Intel Kernel modules: snd-hda-intel -- 01:00.1 Audio device: ATI Technologies Inc Manhattan HDMI Audio [Mobility Radeon HD 5000 Series] Subsystem: Dell Device 0447 Flags: bus master, fast devsel, latency 0, IRQ 49 Memory at fbe40000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: HDA Intel Kernel modules: snd-hda-intel And It seems that I have 2 soundcards. Is that normal ?? I also did this: aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 Also on the sound setting GUI. I have 2 hardware profiles for sound cards but none of them works when I test the speakers. Where should I start searching ?

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• F# Application Entry Point

  - by MarkPearl

  Up to now I have been looking at F# for modular solutions, but have never considered writing an end to end application. Today I was wondering how one would even start to write an end to end application and realized that I didn’t even know where the entry point is for an F# application. After browsing MSDN a bit I got a basic example of a F# application with an entry point [<EntryPoint>] let main args = printfn "Arguments passed to function : %A" args // Return 0. This indicates success. 0 Pretty simple stuff… but what happens when you have a few modules in a program – so I created a F# project with two modules and a main module as illustrated in the image below… When I try to compile my program I get a build error… A function labeled with the 'EntryPointAttribute' attribute must be the last declaration in the last file in the compilation sequence, and can only be used when compiling to a .exe… What does this mean? After some more reading I discovered that the Program.fs needs to be the last file in the F# application – the order of the files in a F# solution are important. How do I move a source file up or down? I tried dragging the Program.fs file below ModuleB.fs but it wouldn’t allow me to. Then I thought to right click on a source file and got the following menu.   Wala… to move the source file to the bottom of the solution you can select the “Move Up” or “Move Down” option. Now that I got this right I decided to put some code in ModuleA & ModuleB and I have the start of a basic application structure. ModuleA Code namespace MyApp module ModuleA = let PrintModuleA = printf "hello a \n" ()   ModuleB Code namespace MyApp module ModuleB = let PrintModuleB = printf "hello b \n" ()   Program Code // Learn more about F# at http://fsharp.net #light namespace MyApp module Main = open System [<EntryPoint>] let main args = ModuleA.PrintModuleA let endofapp = Console.ReadKey() 0

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• AR242x / AR542x wireless card not working

  - by Pipan87

  My wifi worked perfect until I updated to the latest version of Ubuntu. Now I don't find any wireless connections at all. I have tried lots of guides on the internet but I can't get it to work. I did however start to work once after writing something I don't remember in Terminal, but after rebooting it stopped working again. Some info (don't know if you need more to help): 01:00.0 Ethernet controller: Atheros Communications AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0) Subsystem: Acer Incorporated [ALI] Device 022c Flags: bus master, fast devsel, latency 0, IRQ 44 Memory at 55200000 (64-bit, non-prefetchable) [size=256K] I/O ports at 3000 [size=128] Capabilities: [40] Power Management version 2 Capabilities: [48] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [58] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [180] Device Serial Number ff-93-2e-de-00-23-8b-ff Kernel driver in use: ATL1E Kernel modules: atl1e 02:00.0 Ethernet controller: Atheros Communications Inc. AR242x / AR542x Wireless Network Adapter (PCI-Express) (rev 01) Subsystem: Foxconn International, Inc. Device e00d Flags: bus master, fast devsel, latency 0, IRQ 18 Memory at 54100000 (64-bit, non-prefetchable) [size=64K] Capabilities: [40] Power Management version 2 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [60] Express Legacy Endpoint, MSI 00 Capabilities: [90] MSI-X: Enable- Count=1 Masked- Capabilities: [100] Advanced Error Reporting Capabilities: [140] Virtual Channel Kernel driver in use: ath5k Kernel modules: ath5k

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