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• How to get exfat working in Ubuntu 13.10?

  - by davorao

  In Ubuntu 13.04 there was an option to use the PPA by Relan in order to get ExFat functionality. Seeing that in Ubuntu 13.10 this functionality is available from the repositories without the PPA I tried this but failed to make it work. Trying the PPA in Ubuntu 13.10 does not yield results either, as it complains about missing the fuse-utils package. This package seems to have been removed (https://launchpad.net/ubuntu/saucy/amd64/fuse-utils). So my question is, did the process of using ExFat change since the jump from Ubuntu 13.04 to 13.10 and how do I enable it? Old Way sudo apt-add-repository ppa:relan/exfat sudo apt-get update sudo apt-get install exfat-fuse exfat-utils Tried now via Ubuntu Software Center sudo apt-get install exfat-utils exfat-fuse

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• Cannot boot Ubuntu 12.04 on Lenovo V570 fresh install

  - by Jonathan

  I just did a fresh install of Kubuntu 64 bit 12.04 (from the DVD) to a Lenovo V570 laptop. I did a dual boot install with Windows 7. I used the boot layout leftover from Linux Mint 12 (which was working). The installation finished with what seemed to be a success. However, when rebooting, I get this error: GRUB: “invalid arch independent ELF magic” after install on SSD Then I did grub-install and update-grub (I didn't install grub-efi, so maybe this is the problem?) Then I got "unknown filesystem error" at the grub prompt. Desperately, I gave /boot the bootable flag. Then on a reboot,... I got some strange screen with the letters PXE. It flashed momentarily, too fast to read, and then the computer jumped to a screen which asked me from which drive was the boot desired to be. As of now, I have no idea what I am doing.

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• Adding Bzr Launchpad PPA to Ubuntu Hardy

  - by Robery Stackhouse

  I've got TortoiseBazaar installed on my Windows laptop, and I was trying to branch a repository hosted on my VPS to another directory on my VPS, and I got this lovely error: bzr: ERROR: Unknown branch format: 'Bazaar Branch Format 7 (needs bzr 1.6) That lead me to this mailing-list archive: http://osdir.com/ml/bazaar/2009-06/msg00692.html Then I tried following the instructions here to add the Launchpad PPA to /etc/apt/sources.list, but they forgot to mention that you need to do this: sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com D702BF6B8C6C1EFD Which I found out about here after I got this error: GPG error: http://ppa.launchpad.net hardy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D702BF6B8C6C1EFD after modifying my /etc/apt/sources.list and running: sudo apt-get update Just thought I'd save someone else some pain. And of course, don't forget to uninstall the version of bzr that wouldn't play ball in the first place.

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• Updated Whitepapers for OUFW 4.0.1

  - by Anthony Shorten

  The whitepapers are progressively being updated for new facilities in Oracle Utilities Application Framework V4.0.1. The documents now will cover other versions of Oracle Utilities Application Framework (V2.1, V2.2, V4.0.1). The first round of updates are now available on My Oracle Support: 942074.1 - XAI Best Practices 836362.1 - Batch Best Practices 773473.1 - Oracle Utilities Application Framework Security Overview These have been updated for the new whitepaper format as well as the content. Content that is related to specific versions of the Framework are marked accordingly. New content since the last update are also indicated accordingly.

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• How to get current gnome keyboad layout from terminal

  - by ftiaronsem

  For usage in a bash script, I need to get the gnome keyboard layout the user is currently using. For example if the user sets its keyboard layout to en-us , I need a bash command that prints me this. How can I get that information? Update: setxkbmap -query is unfortunatelly not working. Below is the ouput with the en (first command) and the de (second command) layout activated. Switching keyboard layout seems to be have some relation with gnome session configuration setxkbmap -query rules: evdev model: pc105 layout: us,de variant: , options: terminate:ctrl_alt_bksp,lv3:ralt_switch,grp:alts_toggle setxkbmap -query rules: evdev model: pc105 layout: us,de variant: , options: terminate:ctrl_alt_bksp,lv3:ralt_switch,grp:alts_toggle

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• Building a distributed system on Amazon Web Services

  - by Songo

  Would simply using AWS to build an application make this application a distributed system? For example if someone uses RDS for the database server, EC2 for the application itself and S3 for hosting user uploaded media, does that make it a distributed system? If not, then what should it be called and what is this application lacking for it to be distributed? Update Here is my take on the application to clarify my approach to building the system: The application I'm building is a social game for Facebook. I developed the application locally on a LAMP stack using Symfony2. For production I used an a single EC2 Micro instance for hosting the app itself, RDS for hosting my database, S3 for the user uploaded files and CloudFront for hosting static content. I know this may sound like a naive approach, so don't be shy to express your ideas.

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• I dont know my password and wont let me change it via GRUB

  - by josh

  I recently turned off the login password so i would not have to enter my password every time I turn the system on. But now when I try to update or download anything it asks me for my password so I enter my old password and it keeps telling me its wrong when I have only ever had the 1 password and its a simple 1 so I would not forget and considering I have only had UBUNTU installed for two days it is really frustrating. I have also tried resetting it via the GRUB but it wont let me type the new password. Please help ASAP.

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• Physics timestep questions

  - by SSL

  I've got a projectile working perfectly using the code below: //initialised in loading screen 60 is the FPS - projectilEposition and velocity are Vector3 types gravity = new Vector3(0, -(float)9.81 / 60, 0); //called every frame projectilePosition += projectileVelocity; This seems to work fine but I've noticed in various projectile examples I've seen that the elapsedtime per update is taken into account. What's the difference between the two and how can I convert the above to take into account the elapsedtime? (I'm using XNA - do I use ElapsedTime.TotalSeconds or TotalMilliseconds)? Edit: Forgot to add my attempt at using elapsedtime, which seemed to break the physics: projectileVelocity.Y += -(float)((9.81 * gameTime.ElapsedGameTime.TotalSeconds * gameTime.ElapsedGameTime.TotalSeconds) * 0.5f); Thanks for the help

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• Corrupted File System on Dual HD/Dual Boot System

  - by Troy

  I have the following system set up: 2 drives, 1 TB each, one with Windows 7 and the other with what used to be Ubuntu 11.x After an update my system became corrupted and now the file system is apparently corrupt. The Ubuntu drive is /dev/sda2, the Windows 7 is /dev/sda1. I've tried fsck /dev/sda2 -t ext3 and that does nothing. I'm not sure what to do at this point. I don't even mind wiping the /dev/sda2 drive clean, so it will at least accept a completely new installation of Ubuntu. I just don't know how to do that. Please help. Thank you

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• Analyze Drupal and Wordpress sites CPU load in shared server

  - by Tedi

  Our hosting company is complaining that both our Drupal and Wordpress websites running in a shared server are consuming too many CPU resources. The traffic for each site is not more than 100 users per day and, at a first glance, we don't have very many plugins/add-ons. Is there any tool or resource to analyse what is causing that high CPU load? Thanks Update: We decided to suspend our accounts while the problem was being debugged but still our hosting (Site5) said that they saw unacceptable activity on our sites so we had to move to a dedicated server... asked them several times to provide us with more information and they always came back saying that we had to purchase a higher account. Finally decided to move to another hosting service.

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• Move website from host a to host b without down time dns change

  - by grigione

  I would like to move my website from host A to host B I have uploaded a copy of my site to the new host, while keeping the old copy in place with the old host I will need to update the nameservers to point to the new nameservers. I'll want to change the DNS settings of domain name to point to new host b To avoid down time for the DNS change to propagate through the net, can I add the old nameservers and new nameservers together without causing problems, or must I delete the old nameservers first? What happens to my website when it points to two different nameservers?

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• StereoMood Updates; Now Offers Free iOS/Android App

  - by Jason Fitzpatrick

  StereoMood, the popular music streaming service that lets you pick tunes based on your mood, just rolled out an update that includes two brand spanking new mobile apps–one for iOS and one for Android. Grab the free apps to enjoy mood-based tunes on go. For the unfamiliar, StereoMood creates enormous playlists of music categorized by moods–whether you’re feeling happy, relaxed, melancholy, or euphoric, there’s a StereoMood playlist to match. Hit up the links below to check out the web-app or grab a copy of the new mobile apps. StereoMood / iOS App / Android App Java is Insecure and Awful, It’s Time to Disable It, and Here’s How What Are the Windows A: and B: Drives Used For? HTG Explains: What is DNS?

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• Better way to do AI Behavior in AS3/Flixel

  - by joon

  I'm making a game in Flixel and I need to program an NPC. It's rapidly turning more complex than I expected. I was wondering if there are any best practices, tutorials or examples that you can refer me to, to see how this is done. I can probably hack it together, which is what I always do, but it would be nice if I can make it maintanable and can add stuff later on. Here's screenshot to give you an idea: The butler will be an NPC that will follow you, or guide you, and talk to you the whole time. EDIT: More specifically: What I have now is a long list of IF statements in the update loop of the butler (about 8 different cases), and all I have covered is his walking behavior. I want him to comment on things and sometimes switch his main behavior to be more aggresive or distant,... Is there any way to keep track of this, or is complex code with many many nested if statements the way to go?

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• My website dns_server_failure when using University Connection

  - by iMohammad

  My website used to open just fine in the past when I use my University connection, but now since I transfered my website to another hosting company this problem started to appear. Some times the website open and sometimes I get this alot!: Network Error (dns_server_failure) Your request could not be processed because an error occurred contacting the DNS server. The DNS server may be temporarily unavailable, or there could be a network problem. For assistance, contact your network support team. Do you have any idea? I checked using websites checking tools and my website was running just fine on any other connection , ADSL, 3g but except my University connection. Thanks in advance :) UPDATE: When I open my website using the Real IP Server it does open just fine. But with my domain nope. Also, even other websites that are hosted on my server cannot be opened too

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• Web-based CMS for mobile app

  - by JWood

  I'm just about to start developing a mobile app which needs to be fed from a CMS. I started designing the tables when I thought there must be something out there which could save me a load of time and let me concentrate on the mobile side of things. So, I'm looking for a CMS that will let me create hierarchical "pages" which will just be 4-5 database fields with a simple front-end to allow to edit and update them. I don't mind having to write some code to layout the database and forms etc, any saving on starting from scratch would be good. The only requirement is that I be able to access the data via some sort of web service, REST, JSON, XML, anything really... Can anyone suggest anything that might help? Thanks, J

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• No date/time shown before my page in Google search results

  - by Ruut

  I know that by changing the meta description of my webpage, I can control the texts shown by Google in the search results. However I do not know how I can control the text shown just before the search results, for example the date when the page was last updated. Which meta tag to use to accomplish this? UPDATE: My webpage is automatically updated on a weekly basis on irregular intervals by a cronjob which makes changes to the MySQL database which holds the content of my webpages. So the question is what (meta) info to add to my page.

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• custom facebook connect image - Is it facebook's policy violation?

  - by Viruthagiri

  I was going to change facebook's default login button with my custom image like mashable I mean like this But I found a article which state its against facebook's policies Is it really a violation? If it is how come mashable using custom image? Can someone answer me? Update This is the exact image i would like to use. Facebook mentioned like this in this page. While you may scale the size to suit your needs, you may not modify the “f” logo in any other way (such as by changing the design or color). If you are unable to use the correct colour due to technical limitations, you may revert to black and white. So my sign in with facebook image violating facebook policy in anyway?

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• Importing a windows project into android using cocos2d-x

  - by Ef Es

  What I am trying to do today is to import a full project to Android, but no tutorials are available for that that I have seen. My approach was to create a new android project, copy all the classes and resources in the folders and calling ./build_native.sh but I get an error because most of the files are not being included in the project. I tried opening the Android.mk and I can see why "LOCAL_SRC_FILES := AppDelegate.cpp \ HelloWorldScene.cpp" are the only files linked. Should I manually modify the make file or can it be automated by some way I don't know? Thank you. UPDATE: I manually added all files and headers to the make file and I get errors linking Box2D or cocosdenshion libraries.

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• What's the best way to manage list item sort order with Drag & Drop UI?

  - by Reddy S R

  I have a list of Students that I should display to user on a web page in tabular format. The items are stored in DB along with SortOrder information. On the web page, user can rearrange the list order by dragging and dropping the items to their desired sort order, similar to this post. Below is a screenshot of my test page. In the above example, each row has sort order info attached to it. When I drop John Doe (Student Id 10) above the Student Id 1 row, the list order should now be: 2, 10, 1, 8, 11. What's the optimistic (less resource hungry) way to store and update Sort Order information? My only idea for now is, for every change in the list's sort order, every object's SortOrder value should be updated, which in my opinion is very resource hungry. Just FYI: I might have at most 25 rows in my table.

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• Updating scene graph in multithreaded game

  - by user782220

  In a game with a render thread and a game logic thread the game logic thread needs to update the scene graph used by the render thread. I've read about ideas such as a queue of updates. Can someone describe to a newbie at scene graphs what kind of interface the scene graph exports. Presumably it would be rather complicated. So then how does a queue of updates get implemented in C++ in a way that can handle the complexity of the interface of the scene graph while also being type safe and efficient. Again I'm a newbie at scene graphs and C++.

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• 2D SAT How to find collision center or point or area?

  - by Felipe Cypriano

  I've just implemented collision detection using SAT and this article as reference to my implementation. The detection is working as expected but I need to know where both rectangles are colliding. I need to find the center of the intersection, the black point on the image above. I've found some articles about this but they all involve avoiding the overlap or some kind of velocity, I don't need this. I just need to put a image on top of it. Like two cars crashed so I put an image on top of the collision. Any ideas? ## Update The information I've about the rectangles are the four points that represents them, the upper right, upper left, lower right and lower left coordinates. I'm trying to find an algorithm that can give me the intersection of these points.

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• What is 'work' in the Pomodoro Technique?

  - by Sachin Kainth

  I have just started to use Pomodoro today and I am trying to work out what I should and should not do during my 25 minute work time. For my 25 minute work stint I started to write some code and realised that I had done something similar in a related project so I opened that solution to copy and paste that existing code. Question is, is this allowed? Also, if during my 25 minutes I realise that there is an important work-related email that I need to send can I do that or should that wait for the next 25 minutes or the break. I am writing this question during my, now extended, 5 minute break. Is this work or is it a break? I really would appreciate some guidance as I really want to use Pomodoro to focus better on my work. Another thing that happened to me was that a Adobe AIR update alert came up on my desktop during the 25 minutes. Should I ignore such things until the break? Sachin

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• Ubuntu 12.10 64bit fresh install, wireless issue!

  - by Dave

  Just installed a fresh Ubuntu 12.10 64bit on my laptop, run the update manager, restarted and suddenly I can't use my wifi anymore. Ubuntu software center installed automatically the wifi additional driver as you can see in my screenshot. If I mark the option "Do not use the device" and apply changes, restarting Ubuntu my wifi is back and I can use it. If I run iwconfig my terminal is showing this Now if I use Ubuntu for more than 20 minutes surfing the web my wifi it keeps to be connected but I don't receive any signal from it. Any page I try to open it simply don't open (just waiting icon). If I disconnect my wifi and connect it again, same issue, it doesn't work. The only way to make it work again is to restart Ubuntu. And the same story it happens again after aprox. 20, 30 minutes. WIFI device details: 03:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01) Thanks, Dave

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• Is an 'if password == XXXXXXX' enough for minimum security?

  - by Morgan Herlocker

  If I create a login for an app that has middle to low security risk (in other words, its not a banking app or anything), is it acceptable for me to verify a password entered by the user by just saying something like: if(enteredPassword == verifiedPassword) SendToRestrictedArea(); else DisplayPasswordUnknownMessage(); It seems to easy to be effective, but I certainly would not mind if that was all that was required. Is a simple check on username/password combo enough? Update: The particular project happens to be a web service, the verification is entirely server side, and it is not open-source. Does the domain change how you would deal with this?

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• Are there any formalized/mathematical theories of software testing?

  - by Erik Allik

  Googling "software testing theory" only seems to give theories in the soft sense of the word; I have not been able to find anything that would classify as a theory in the mathematical, information theoretical or some other scientific field's sense. What I'm looking for is something that formalizes what testing is, the notions used, what a test case is, the feasibility of testing something, the practicality of testing something, the extent to which something should be tested, formal definition/explanation of code coverage, etc. UPDATE: Also, I'm not sure, intuitively, about the connection between formal verification and what I asked, but there's clearly some sort of connection.

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