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  • Keyring no longer prompts for password when SSH-ing

    - by Lie Ryan
    I remember that I used to be able to do ssh [email protected] and have a prompt asks me for a password to unlock the keyring for the whole GNOME session so subsequent ssh wouldn't need to enter the keyring password any longer (not quite sure if this is in Ubuntu or other distro). But nowadays doing ssh [email protected] would ask me, in the terminal, my keyring password every single time; which defeats the purpose of using SSH keys. I checked $ cat /etc/pam.d/lightdm | grep keyring auth optional pam_gnome_keyring.so session optional pam_gnome_keyring.so auto_start which looks fine, and $ pgrep keyring 1784 gnome-keyring-d so the keyring daemon is alive. I finally found that SSH_AUTH_SOCK variable (and GNOME_KEYRING_CONTROL and GPG_AGENT_INFO and GNOME_KEYRING_PID) are not being set properly. What is the proper way to set this variable and why aren't they being set in my environment (i.e. shouldn't they be set in default install)? I guess I can set it in .bashrc, but then the variables would only be defined in bash session, while that is fine for ssh, I believe the other environment variables are necessary for GUI apps to use keyring.

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  • Dependencies not met on 12.04?

    - by Mochan
    Now I'm very aware that there are many questions out there that are quite similar to what I'm experiencing, but I have looked through many and I have not found a suitable answer. You are welcome to suggest questions that are similar, but I doubt that it will help. Getting on to the issue at hand, whenever I do anything that involves installation, whether it be codecs for videos, new programs or whatever the latter, I always get the 'Dependencies not met' error. In addition, I also get this notification in the panel: When clicked, the menu says this: "An error occurred. Please run Package Manager from the right-click menu or run apt-get in a terminal to see what is wrong. The error message was: ' Error: Broken Count 0'. This usually means your installed packages have unmet dependencies." It gives me three items to click: Show Updates Install all updates Check for Updates And then finally: Show Notifications (with a tick) Preferences When I try 'Install all Updates' (also Check Updates Install) it says this: and also this: As well as 'Ubuntu has experienced an internal error' and 'Did this error occur when moving from one version of Ubuntu to another?' (I clicked NO, because it didn't). So I took it's advice and ran sudo apt-get install -f This is what results: Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: libapt-pkg4.12:i386 The following packages will be upgraded: libapt-pkg4.12:i386 1 upgraded, 0 newly installed, 0 to remove and 87 not upgraded. 1 not fully installed or removed. Need to get 0 B/941 kB of archives. After this operation, 0 B of additional disk space will be used. Do you want to continue [Y/n]? Y E: Internal Error, No file name for libapt-pkg4.12 When running sudo apt-get update it's all fine, but running sudo apt-get install -f still results in the same thing. I really have no idea what to do... can anyone help me?

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  • File doesn't exist when trying to change permissions following the avasys image scan manual

    - by Howard Graham
    I was finally able to connect to avasys.jp and downloaded and installed iscan_2.28.1-3.ltdl7_amd64.deb iscan-data_1.13.0-1_all.deb. The programs appeared to install correctly. I then ran sane-find-scanner and got back: found USB scanner (vendor=0x04b8, product=0x012d) at libusb:001:003 I then ran lsusb and got back: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 003: ID 04b8:012d Seiko Epson Corp. Perfection V10/V100 (GT-S600/F650) Bus 001 Device 004: ID 03f0:4817 Hewlett-Packard Bus 002 Device 002: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse the avasys image scan manual instructed me to run chmod 0666 /proc/bus/usb/001/003 which returned chmod: cannot access `/proc/bus/usb/001/003': No such file or directory In 12.04, no such directory exists. 12.04 appears to deal with USB in another way. What must I do to get the usb port 001/003 recognized by xsane and sane as the port where the scanner can be located? What must I do to continue installing the scanner?

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  • Releasing software/Using Continuous Integration - What do most companies seem to use?

    - by Sagar
    I've set up our continuous integration system, and it has been working for about a year now. We have finally reached a point where we want to do releases using the same. Before our CI system, the process(es) that was used was: (Develop) -> Ready for release -> Create a branch -> (Build -> Fix bugs as QA finds them) Loop -> Final build -> Tag (Develop) -> Ready for release -> (build -> fix bugs) Loop -> Tag Our CI setup: 1 server for development (DEV) 1 server for qa/release (QA) The second one has integrated into CI perfectly. I create a branch when the software is ready for release, and the branch never changes thereafter, which means the build is reproduceable without having to change the CI job. Any future development takes place on HEAD, and even maintainence releases get a completely new branch and a completely new job, which remains on the CI system forever, and then some. The first method is harder to adapt. If the branch changes, the build is not reproduceable unless I use the tag to build [jobs on the CI server uses the branch for QA/RELEASE, and HEAD for development builds]. However, if I use the tag to build, I have to create a new CI job to build from the tag (lose changelog on server), or change the existing job (lose original job configuration). I know this sounds complicated, and if required, I will rewrite/edit to explain the situation better. However, my question: [If at all] what process does your company use to release software using continuous integration systems. Is it even done using the CI system, or manually?

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  • How should I load level data in java?

    - by Matthew G.
    I'm setting up my engine for a certain action/arcade game to have a set of commands that would look something like this. Set landscape to grass Create rocks at ... Create player at X, Y Set goal to "Get to point X Y" Spawn enemy at X, Y I'd then have each object knowing what it has to do, and acting on its own. I've been thinking about how to store this data. External data files could be parsed by a level class, and certain objects can be spawned through that. I could also create a base level class and extend it for each level, but that'd create a large amount of classes. Another idea is to have one level parser class, but have a case for each level. This would be extremely silly and bulky, but I mention it because I found that I did this at 2 AM last night. I'm finally getting why I have to plan out my inheritances, though. RIP project. I might be completely missing another option.

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  • Can a candidate be judged by asking to write a complex program on "paper"?

    - by iammilind
    Sometime back in an interview, I was asked to write following program: In a keypad of a mobile phone, there is a mapping between number and characters. e.g. 0 & 1 corresponds to nothing; 2 corresponds to 'a','b','c'; 3 corresponds to 'd','e','f'; ...; 9 corresponds to 'w','x','y','z'. User should input any number (e.g. 23, 389423, 927348923747293) and I should store all the combinations of these character mapping into some data structure. For example, if user enters "23" then possible character combinations are: ad, ae, af, bd, be, bf, cd, ce, cf or if user enters, "4676972" then it can be, gmpmwpa, gmpmwpb, ..., hnroxrc, ..., iosozrc Interviewer told that people have written code for this within 20-30 mins!! Also he insisted I have to write on paper. If I am writing a code then my tendency is as of I am writing production code, even though it may not be expected from me. So, I always try to think all the aspects like, optimization, readability, maintainability, extensible and so on. Considering all these, I felt that I should be writing on PC and it needs decent 2 hours. Finally after 25 mins, I was able to come up with just the concept and some shattered pieces of code (not to mention of my rejection). My question is not the answer for the above program. I want to know that is this a right way to judge the caliber of a person ? Am I wrong / too slow in the estimates ? Am I too idealistic ?

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  • How to remove a box2d body when collision happens?

    - by Ayham
    I’m still new to java and android programming and I am having so much trouble Removing an object when collision happens. I looked around the web and found that I should never handle removing BOX2D bodies during collision detection (a contact listener) and I should add my objects to an arraylist and set a variable in the User Data section of the body to delete or not and handle the removing action in an update handler. So I did this: First I define two ArrayLists one for the faces and one for the bodies: ArrayList<Sprite> myFaces = new ArrayList<Sprite>(); ArrayList<Body> myBodies = new ArrayList<Body>(); Then when I create a face and connect that face to its body I add them to their ArrayLists like this: face = new AnimatedSprite(pX, pY, pWidth, pHeight, this.mBoxFaceTextureRegion); Body BoxBody = PhysicsFactory.createBoxBody(mPhysicsWorld, face, BodyType.DynamicBody, objectFixtureDef); mPhysicsWorld.registerPhysicsConnector(new PhysicsConnector(face, BoxBody, true, true)); myFaces.add(face); myBodies.add(BoxBody); now I add a contact listener and an update handler in the onloadscene like this: this.mPhysicsWorld.setContactListener(new ContactListener() { private AnimatedSprite face2; @Override public void beginContact(final Contact pContact) { } @Override public void endContact(final Contact pContact) { } @Override public void preSolve(Contact contact,Manifold oldManifold) { } @Override public void postSolve(Contact contact,ContactImpulse impulse) { } }); scene.registerUpdateHandler(new IUpdateHandler() { @Override public void reset() { } @Override public void onUpdate(final float pSecondsElapsed) { } }); My plan is to detect which two bodies collided in the contact listener by checking a variable from the user data section of the body, get their numbers in the array list and finally use the update handler to remove these bodies. The questions are: Am I using the arraylist correctly? How to add a variable to the User Data (the code please). I tried removing a body in this update handler but it still throws me NullPointerException , so what is the right way to add an update handler and where should I add it. Any other advices to do this would be great. Thanks in advance.

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  • Product Support News for Oracle Solaris, Systems, and Storage

    - by user12244613
    Hi System Support Customers, April Newsletter is now available The April, 2012 Newsletter for Oracle Solaris, Systems, and Storage is now available via document 1363390.1 *Requires a My Oracle Support account to access. Please take a few minutes to read the newsletter. The newsletter is the primary method of communication about what we in support would like you to be aware of. If you are not receiving the newsletter, it could be due to: (a) Your Oracle profile does not have the allow Oracle Communication selected (on oracle.com Sign In, or if logged in select "Account" and under your Job Role, check you have selected this box : [ ] Yes, send me e-mails in Oracle Products.... (b) you have not logged a service request during the last 12 months. Oracle is working to improve the distribution process and changes are coming and once they are ready I will write more about that. But today if you don't automatically receive the newsletter all you can do is save it as a favorite within My Oracle Support and come back on the 2nd of each month to check out the changes. This month I am really interested to find out from you is the Newsletter providing you the type of items that you are interested in. To gather some data on that, I have a small 2minute survey running on the newsletter or you can access it [ here ] Finally, if you think I am missing a topic in the Newsletter, let me know by taking the survey or suggesting a topic via this blog. Get Proactive Don't forget about being Proactive. The latest updates for Systems and Solaris pages in the Get Proactive area are now available. Check out document 432.1 and learn what proactive features are available for Systems and Solaris.

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  • how to properly implement alpha blending in a complex 3d scene

    - by Gajet
    I know this question might sound a bit easy to answer but It's driving me crazy. There are too many possible situations that a good alpha blending mechanism should handle, and for each Algorithm I can think of there is something missing. these are the methods I've though about so far: first of I though about object sorting by depth, this one simply fails because Objects are not simple shapes, they might have curves and might loop inside each other. so I can't always tell which one is closer to camera. then I thought about sorting triangles but this one also might fail, thought I'm not sure how to implement it there is a rare case that might again cause problem, in which two triangle pass through each other. again no one can tell which one is nearer. the next thing was using depth buffer, at least the main reason we have depth buffer is because of the problems with sorting that I mentioned but now we get another problem. Since objects might be transparent, in a single pixel there might be more than one object visible. So for which Object should I store pixel depth? I then thought maybe I can only store the most front Object depth, and using that determine how should I blend next draw calls at that pixel. But again there was a problem, think about 2 semi transparent planes with a solid plane in middle of them. I was going to render the solid plane at the end, one can see the most distant plane. note that I was going to merge every two planes until there is only one color left for that pixel. Obviously I can use sorting methods too because of the same reasons I've explained above. Finally the only thing I imagine being able to work is to render all objects into different render targets and then sort those layers and display the final output. But this time I don't know how can I implement this algorithm.

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  • How do I finish installing Sun JDK after cancelling out of the legal term screen?

    - by Ravi
    I am a newcomer to linux and have had lots of problems in installing java on my newly installed Ubuntu 11.10. I use a statistical programming environment called R and many of the packages there require java (the sun variety, I am told). I tried the following : sudo add-apt-repository ppa:ferramroberto/java sudo apt-get update sudo apt-get install sun-java6-jre sun-java6-plugin sun-java6-fonts (after this, I wanted to continue with (but never got that far) : sudo apt-get install sun-java6-jdk After this, a window appeared with the heading, "Configuring jre", or something like that. Below was a long list of legal text about accepting Sun's terms. I did not know how to close this window (no obvious option like pressing return worked). After a long time, when nothing seemed to happen, I finally closed the window. After that, I could not open synaptic. I got the error message : dpkg was interrupted. You must manually run 'sudo dpkg --configure -a' I did this. But it does not help. I have java as a "broken" program. When I try to remove the program from synaptic, I get a message that I must reinstall it again.I do not know what I should do. I want to install jdk6. And also remove the open jdk which is still persistently present in my system. I tried the clean and purge command shown below. Next, I tried to remove the sun-java6-jre from synaptic. I get the following message :E: sun-java6-jre: Package is in a very bad inconsistent state - you should reinstall it before attempting a removal. When I tried to follow the procedure suggested in the related question (from the link suggested below), I get the following message on trying to install again :Could not mark all packages for installation or upgrade.The following packages have unresolvable dependancies. Make sure that all required repositories are added and enabled in the preferences. sun-java6-bin : Depends: sun-java6-jre but it is not going to be installed

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  • How do i approach this collision model?

    - by PeeS
    this is the game level prototype i have already implemented. It has few objects per room to allow me to finally add some collision detection/response code into it. VIDEO As you can probably see, every object inside has it's own AABB, even the room itself has AABB. So a player is like 'inside the Room AABB'. My player will be exactly inside the room, so he would have to collide correctly with those AABBs, so that when he hits any of those objects inside he get's a proper collision response from those AABB's. Now i would like to hear from you what kind of collision approach should i choose in here? How do i approach this kind of stuff: AABB to AABB collision detection then when this is positive go with AABB - Tri to find proper plane normal and calculate response ? AABB to AABB then when positive go with AABB - AABB Side check to find proper proper plane normal and calculate response? Anything else? How do you do this ? Many thanks.

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  • Almost working 2D Collisions

    - by TheGag96
    I'm terribly sorry I'm asking this question YET AGAIN, but I can almost guarantee that this will be the last time I'll have to ask. I'm currently on the verge of FINALLY getting these collisions to work for my game, made with libGDX in Java. My collisions use the same method as (and are basically copied and modified code from) the XNA Platformer example (here) where the direction of the collision is based on the rectangle where two objects are overlapping. The collisions themselves almost work perfectly, but for some reason, holding down/up and left and colliding with the floor/ceiling while doing so doesn't seem to work well. I'm not at all sure why. Instead of vaguely giving my problem and snippets of code, I've decided to instead provide a binary and the source of the game I have so far so you can see for yourself what my problem is. Link. (Note: make sure you unzip everything into a folder somewhere or it will not work) You'll find the collision code in the method workingCollisions() in Link.java. Please excuse the messy code and terrible graphics as this whole thing is in pre-pre-alpha. If anyone is kind enough and helps me out here, you are the best person ever. I'm completely desperate; I've been trying this on and off for months and I just can't get it to work. I cannot thank you enough.

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  • Wireless BMC4311 driver install

    - by user113910
    Exasperated with Ubuntu 12.04 and BCM4311 driver. HP2133 (was SUSE 10) Installed 12.04 in March. It ran well until November with no updates) then updates killed my wireless controller. Trolled forums & other for fix. Tried sudo -apt-get ing & gedit ing. Finally got it working (on full update with STA driver) Hwew!—thought that was it, only to fail again after 3-4 days. Tried all the fixes again but sudo -apt-get ing & gedit ing does not fix. I'm not without experience either: first 'boot-loader' I/P from 20 switch panel, seq to 4096 bit core-store: run to I/P larger processes from paper tape reader. Gone thru acoustic-coupled networks-to-billboards (before 'the net') pre-DOS, DOS, Windows 3.1 & all the others. This is a tough problem. Any advice?

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  • What is the best approach to solve a factory method problem which has to be an instance?

    - by Iago
    I have to add new funcionality in a web service legacy project and I'm thinking what is the best approach for a concrete situation. The web service is simple: It receives a XML file, unmarshalling, generates response's objects, marshalling and finally it sends the response as a XML file. For every XML files received, the web service always responds with the same XML structure. What I have to do is to generate a different XML file according to the XML received. So I have a controller class which has all marshalling/unmarshalling operations, but this controller class has to be an instance. Depending on XML received I need some marshalling methods or others. Trying to make few changes on legacy source, what is the best approach? My first approach was to do a factory method pattern with the controller class, but this class has to be an instance. I want to keep, as far as it goes, this structure: classController.doMarshalling(); I think this one is a bit smelly: if(XMLReceived.isTypeOne()) classController.doMarshallingOne(); else if(XMLReceived.isTypeTwo()) classController.doMarshallingTwo(); else if(XMLReceived.isTypeThree()) classController.doMarshallingThree(); else if ... I hope my question is well understood

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  • Raspberry Pi, Time Capsule Progress

    - by Richard Jones
    So by way of an update. I thought all was good with my Raspberry Pi, Debian and Netatalk Apple Time Capsule Clone. However something very strange going on. Although I could backup my Mac's + PC's fine to Raspberry Pi with external USB HD; strangely with RPI running, I couldn't use AirPlay. I found myself unable to play anything from Mac to Apple TV. So after lots of trying to make this work, I about turned and finally went out and got myself a 2TB Apple Time Capsule. More cash than I would want to spend on anything like this, but Apple you got me. I would like to offer a top tip, which maybe goes a small way to justifying silly expenditure... You can easily add a USB HD to any Time Capsule. I've just added a 3 TB external USB HD, giving me a 5 TB of total backup grunt. 3 TB External USB HD, was peanuts by comparison to Apple kit. So all working, its all solid as you'd expect.Apple 2, maybe me .5. But strong, solid backups now happening, without hassle (but a bit of a credit card bill to follow)

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  • Sample domain model for online store

    - by Carel
    We are a group of 4 software development students currently studying at the Cape Peninsula University of Technology. Currently, we are tasked with developing a web application that functions as a online store. We decided to do the back-end in Java while making use of Google Guice for persistence(which is mostly irrelevant for my question). The general idea so far to use PHP to create the website. We decided that we would like to try, after handing in the project, and register a business to actually implement the website. The problem we have been experiencing is with the domain model. These are mostly small issues, however they are starting to impact the schedule of our project. Since we are all young IT students, we have virtually no experience in the business world. As such, we spend quite a significant amount of time planning the domain model in the first place. Now, some of the issues we're picking up is say the reference between the Customer entity and the order entity. Currently, we don't have the customer id in the order entity and we have a list of order entities in the customer entity. Lately, I have wondered if the persistence mechanism will put the client id physically in the order table, even if it's not in the entity? So, I started wondering, if you load a customer object, it will search the entire order table for orders with the customer's id. Now, say you have 10 000 customers and 500 000 orders, won't this take an extremely long time? There are also some business processes that I'm not completely clear on. Finally, my question is: does anyone know of a sample domain model out there that is similar to what we're trying to achieve that will be safe to look at as a reference? I don't want to be accused of stealing anybody's intellectual property, especially since we might implement this as a business.

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  • Groovy JUnit test support

    - by Martin Janicek
    Good news everyone! I've implemented support for the Groovy JUnit tests which basically means you can finally use Groovy in the area where is so highly productive! You can create a new Groovy JUnit test in the New File/Groovy/Groovy JUnit test and it should behave in the same way as for Java tests. Which means if there is no JUnit setup in your project yet, you can choose between JUnit 3 and JUnit 4 template and with respect to your choice the project settings will be changed (in case of the Maven based projects the correct dependencies and plugins are added to the pom.xml and in case of the Ant based project the JUnit dependency is configured). Or if the project is already configured, the correct template will be used. After that the test skeleton is created and you can write your own code and of course run the tests together with the java ones. Some of you were asking for this feature and of course I don't expect it will be perfect from the beginning so I would be really glad to see some constructive feedback about what could be improved and/or redesigned ;] ..at the end I have to say that the feature is not active for the Ant based Java EE projects yet (I'm aware of it and it will be fixed to the NetBeans 7.3 final - actually it will be done in a few days/weeks, just want you to know). But it's already complete in all types of the Maven based projects and also for the Ant based J2SE projects. And as always, the daily build where you can try the feature can be downloaded right here, so don't hesitate to try it!

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  • Position Reconstruction from Depth by inverting Perspective Projection

    - by user1294203
    I had some trouble reconstructing position from depth sampled from the depth buffer. I use the equivalent of gluPerspective in GLM. The code in GLM is: template GLM_FUNC_QUALIFIER detail::tmat4x4 perspective ( valType const & fovy, valType const & aspect, valType const & zNear, valType const & zFar ) { valType range = tan(radians(fovy / valType(2))) * zNear; valType left = -range * aspect; valType right = range * aspect; valType bottom = -range; valType top = range; detail::tmat4x4 Result(valType(0)); Result[0][0] = (valType(2) * zNear) / (right - left); Result[1][2] = (valType(2) * zNear) / (top - bottom); Result[2][3] = - (zFar + zNear) / (zFar - zNear); Result[2][4] = - valType(1); Result[3][5] = - (valType(2) * zFar * zNear) / (zFar - zNear); return Result; } There doesn't seem to be any errors in the code. So I tried to invert the projection, the formula for the z and w coordinates after projection are: and dividing z' with w' gives the post-projective depth (which lies in the depth buffer), so I need to solve for z, which finally gives: Now, the problem is I don't get the correct position (I have compared the one reconstructed with a rendered position). I then tried using the respective formula I get by doing the same for this Matrix. The corresponding formula is: For some reason, using the above formula gives me the correct position. I really don't understand why this is the case. Have I done something wrong? Could someone enlighten me please?

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  • Learning OpenGL GLSL - VAO buffer problems?

    - by Bleary
    I've just started digging through OpenGL and GLSL, and now stumbled on something I can't get my head around this one!? I've stepped back to loading a simple cube and using a simple shader on it, but the result is triangles drawn incorrectly and/or missing. The code I had working perfectly on meshes, but was attempting to move to using VAOs so none of the code for storing the vertices and indices has changed. http://i.stack.imgur.com/RxxZ5.jpg http://i.stack.imgur.com/zSU50.jpg What I have for creating the VAO and buffers is this //Create the Vertex array object glGenVertexArrays(1, &vaoID); // Finally create our vertex buffer objects glGenBuffers(VBO_COUNT, mVBONames); glBindVertexArray(vaoID); // Save vertex attributes into GPU glBindBuffer(GL_ARRAY_BUFFER, mVBONames[VERTEX_VBO]); // Copy data into the buffer object glBufferData(GL_ARRAY_BUFFER, lPolygonVertexCount*VERTEX_STRIDE*sizeof(GLfloat), lVertices, GL_STATIC_DRAW); glEnableVertexAttribArray(pos); glVertexAttribPointer(pos, 3, GL_FLOAT, GL_FALSE, VERTEX_STRIDE*sizeof(GLfloat),0); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mVBONames[INDEX_VBO]); glBufferData(GL_ELEMENT_ARRAY_BUFFER, lPolygonCount*sizeof(unsigned int), lIndices, GL_STATIC_DRAW); glBindVertexArray(0); And the code for drawing the mesh. glBindVertexArray(vaoID); glUseProgram(shader->programID); GLsizei lOffset = mSubMeshes[pMaterialIndex]->IndexOffset*sizeof(unsigned int); const GLsizei lElementCount = mSubMeshes[pMaterialIndex]->TriangleCount*TRIAGNLE_VERTEX_COUNT; glDrawElements(GL_TRIANGLES, lElementCount, GL_UNSIGNED_SHORT, reinterpret_cast<const GLvoid*>(lOffset)); // All the points are indeed in the correct place!? //glPointSize(10.0f); //glDrawElements(GL_POINTS, lElementCount, GL_UNSIGNED_SHORT, 0); glUseProgram(0); glBindVertexArray(0); Eyes have become bleary looking at this today so any thoughts or a fresh set of eyes would be greatly appreciated.

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  • Oh snap! My RPi was upgraded to 512MB! Woo-hoo!

    - by hinkmond
    I ordered a Raspberry Pi Model B (256MB) over 4 months ago on backorder. When it finally came I saw it was upgraded to the new half a gig model! Woot! But, all was not perfect. Gary C. told me the shipped configuration of the new RPi models didn't have the right firmware for 512MB, and I had to upgrade the start.elf in the /boot directory to recognize all of the 512MB RAM. I did a "free" command, and sure enough saw only 240MB. Sadness. But, Gary gave me a copy of his start.elf which worked after some trail and error. For anyone ordering the new RPi Model B w/512MB, here are the steps to get you going with full 512MB RAM: sudo apt-get update --fix-missing sudo apt-get upgrade --fix-missing # NOTE: This step takes at least a couple hours on a # fast network wget https://raw.github.com/raspberrypi/firmware/\ 164b0fe2b3b56081c7510df93bc1440aebe45f7e/boot/\ arm496_start.elf sudo mv /boot/start.elf /boot/orig-start.elf sudo mv arm496_start.elf /boot/start.elf sudo reboot free total used free shared buffers cached Mem: 497768 210596 287172 0 16892 169624 -/+ buffers/cache: 24080 473688 Swap: 102396 0 102396 So of course this means... (drumroll) there is now 498MB available for the Java Embedded heap! java -Xmx400m -version java version "1.7.0_06" Java(TM) SE Embedded Runtime Environment (build 1.7.0_06-b24, headless) Java HotSpot(TM) Embedded Client VM (build 23.2-b09, mixed mode) Yeah, baby! Hinkmond

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  • Part 4: Development Standards or How to share

    - by volker.eckardt(at)oracle.com
    Although we usually introduce the custom development part in EBS projects as “a small piece only” and “we will avoid as best as possible”, the development effort can be enormous and should therefore be well addressed by project standards. Any additional solution or additional software tool or product shall influence the custom development rules (by adding, removing or replacing sections). It is very common in EBS projects to create a so called “MD.030 Development Standards” document and put everything what’s related to development conventions into it. This document gets approval and will be shared among all developers. Later, additional sections have to be added, and usually the development lead is responsible for doing this. However, sometimes used development techniques are not documented properly, and therefore the development solutions deviate from each other, or from the initially agreed standards. My advice would be the following: keep the MD.030 as a base document, and add a Wiki on top. The “Development Wiki” covers the following: Collect input from every developer without updating the MD.030 directly Collect additional topics that might need further specification Allow a discussion about such topics by reviewing/updating the wiki directly Add also decisions or open questions right into it. In one of my own projects we were using this “Developer Wiki” quite extensive, and my experience is very positive. We had different sections in it, good cross references, but also additional material like code templates, links to external web pages etc. By using this wiki, the development standards became “owned” by the right group of people, the developers. They recognized that information sharing can improve the overall development quality, but will also reduce the workload on individuals. Finally, the wiki was much more accurate and helpful for the daily development work than our initial MD.030, and we all decided to retire the document completely. Summary: Information sharing in the development area is very important! The usual “MD.030 Development Standards“ is a good starting point, but should be combined with a “Development Wiki”, allowing everyone to address and discuss necessary improvements. A well-structured Wiki can replace the document in some sections completely. Side Note: The corresponding task in Oracle OUM (Oracle Unified Method) is DS.050 ‘Determine Design and Build Standards’ Volker

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  • Building own kernel on ubuntu

    - by chris
    Hi, I'm trying to build my own kernel, as I want to write a kernel program which I need to compile into the kernel. So what did I do? Download from kernel.org, extract, do the make menuconfig and configure everything as needed, do a make, do a make modules_install, do a make install and finally do a update-grub. Result: It doesn't boot at all.... Now I had a look here and it describes a different way of compiling a kernel. Could this be the reason whz my way did not work? Or does anyone else have an idea why my kernel doesn't work? ######## Edit Great answer, ty. Oli. But I tried it the old fashioned way, and after one hour of compiling I got this message: install -p -o root -g root -m 644 ./debian/templates.master /usr/src/linux-2.6.37.3/debian/linux-image-2.6.37.3meinsmeins/DEBIAN/templates dpkg-gencontrol -DArchitecture=i386 -isp \ -plinux-image-2.6.37.3meinsmeins -P/usr/src/linux-2.6.37.3/debian/linux-image-2.6.37.3meinsmeins/ dpkg-gencontrol: error: package linux-image-2.6.37.3meinsmeins not in control info make[2]: *** [debian/stamp/binary/linux-image-2.6.37.3meinsmeins] Error 255 make[2]: Leaving directory `/usr/src/linux-2.6.37.3' make[1]: *** [debian/stamp/binary/pre-linux-image-2.6.37.3meinsmeins] Error 2 make[1]: Leaving directory `/usr/src/linux-2.6.37.3' make: *** [kernel-image] Error 2

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  • Joomla 1.6 site cannot add a new extension through admin interface

    - by Ghlouw
    I'm having a very frustrating problem with my Joomla 1.6 site. I cannot add any new extensions through the admin interface. I have tried to upload the extension, or to use the search folder option or even the direct link. Neither of these options work, and all that happens is that the page tries to load forever until it finally timesout with a blank white page (no further error messages). I have tried this with multiple browsers (Chrome,FF,IE) and I have tried it with different extensions (modules, components, templates - all the same result). So I don't think it has anything to do with what I am uploading, but more likely the problem is something with the post action. I have also seen the exact same error occur when I try to update menu items or even create new menu items. I am not getting this error with a duplicate of the site in the dev environment, but only get this on my shared web hosting live server. This is on a Windows IIS / PHP / mySQL environment. Any help would be much appreciated!

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  • Picking a suitable resolution for a modern low-res game?

    - by MrKatSwordfish
    I'm working on a 2D game project right now (using SFML+OpenGL and C++) and I'm trying to figure out how to go about choosing a resolution. I want my game to have a pixel resolution that is around that of classic '16bit' era consoles like the Super Nintendo or Neo Geo. However, I'd also like to have my game fit the 16:9 aspect ratio that most modern PC monitors use. Finally I'd like to be able to include an option for running full screen. I know that I could create my own low-res 16:9 resolution that is more-or-less around the size of SNES or NeoGeo games. However, the problem seems to be that doing so would leave me with a non-standard resolution that my monitor would not be able to support in fullscreen mode. For example, if i divide the common 16:9 resolution 1920x1080 by 4, I would get a 16:9 resolution that is relatively close to the resolution used by 16bit era games; 480x270. That would be fine in a windowed mode, but I don't think that it would be supported in fullscreen mode. How can I choose a resolution that suits my needs? Can I use something like 480x270? If so, how would I go about getting fullscreen mode to work with such a non-standard resolution? (I'm guessing OpenGL/SFML might have a way of up-scaling...but..)

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  • 12.10 no audio via hdmi and video speeds up

    - by jackson
    I have a laptop with an ati radeon 4200, on 12.04 everything worked fine, since upgrading to 12.10 I cannot get sound over the hdmi. When I switch to hdmi audio the video speeds up to about 2x. I can use the speakers in my laptop and watch video via hdmi with no problems. Things I have tried: Various tutorials to install the AMD/ATI drivers, all of which resulted in low graphics mode. Checked that everything is properly set in alsamixer, the sound utility and - installed pavucontrol and checked everything in there. Verified the output from cat /proc/asound/cards looks normal When I initially upgraded there was a plethora of problems which I believe were due to the old proprietary driver still being used but not compatible, after a few hours trying to fix that I decided just to back up and do a fresh install which works great except for the above stated problem. Any help would be greatly appreciated!! Finally hopefully this hasn't already been answered, I have tried a few different searches on the boards and haven't come up with anything. $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: SB [HDA ATI SB], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0] Subdevices: 0/1 Subdevice #0: subdevice #0

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