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• Resources for understanding iOS architecture [closed]

  - by BlackJack

  I recently finished reading Randall Hyde's excellent book Write Great Code: Volume 1: Understanding the Machine, and I have a much better knowledge of what's going on under the hood now. I want to start making iPhone apps, and there are lots of guides for that. Embracing my inner Hyde, however, I want to first learn about the iOS system architecture. Apple has a really good overview here: iOS Technology Overview Before I start, I wanted to know if there were any other good resources for understanding iOS architecture and using that knowledge for iPhone programming. Thanks.

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• Title of a specific retro game with color absorption

  - by Rene B

  I am looking for the title a free multiplayer (on one machine) DOS game i can't remember Players are steering (with cursors/WASD keys) kind of ufos which looks like donuts from top-down view. These 'ufos' attract colored particles. When your particles collide with particles from other players (in a different color), the colors will mix. If the particles are more your color than the other players color, they will start following you. The only remaining player (with the most color particles) wins the game. Can you please give me the game title? THANK YOU!

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• Virtualising Windows 8 on OS X with VMware Fusion above the 8GB limit

  - by mbrit

  tl;dr - don't.VMware Fusion has an 8GB limit, so on my 16GB MacBook Pro (which is an old one with a 16GB memory upgrade), I wanted to use more than 8GB. You can fudge it my editing the .vmx file and changing the memsize value to whatever you want.However it turns out that if you do this the performance on the whole machine turns into a big. It beachballs all over the place, both in VMware and without. Constant hanging of VMware, fan running hot the whole time, etc.This is just an apocryphal view, but having spent a week and a half with it unusable and me thinking I was going to have to go back to Win7, turn it down back to using 8GB exactly seems to be working much more stably.

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• .NET - refactoring code

  - by w0051977

  I have inherited and now further develop a large application consisting of an ASP.NET application, VB6 and VB.NET application. The software was poorly written. I am trying to refactor the code as I go along. The changes I am making are not live (they are contained in a folder on my development machine). This is proving to be time consuming and I am doing this along side other work which is the prioritiy. My question is: is this a practical approach or is there a better methodology for refactoring code? I don't have any experience with version control software or source control software and I am wandering if this is what I am missing. I am a sole developer.

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• How do I resolve "No JSON object could be decoded" on mythbuntu live CD?

  - by Neil

  I have been running a MythTV frontend on my laptop for some time against a MythTV backend installed in Linux Mint 12 on another computer, and everything works fine. Now, I'm trying out the Mythbuntu Live CD (12.04.1 32-bit) on the laptop, to turn it into a dedicated front end. It's connecting to the network just fine, and I can see my server. When I click on the frontend icon on the desktop, it asks me for the security code, which I've verified against mythtv-setup on the server. However, when I test that code, it shows the error message "No JSON object could be decoded". I've looked in the control center to see if there's something else I should be setting up. The message above implies to me that it can't find the server, but I can find no place in the control center to tell it where to find my myth backend, which I find a little odd. Does the live CD not work against a backend server on another machine?

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• A hónap könyve: "Achieving Extreme Performance with Oracle Exadata"

  - by Lajos Sárecz

  Luis Moreno Campos ocpdba oracle weblog blogjában találtam a fenti fotót és a hírt, hogy megjelent az elso Oracle Exadata-ról szóló könyv! Már a tartalomjegyzék alapján nagyon ígéretes a könyv. Azt gondolom kötelezo olvasmány mindazoknak, akik használják, használni fogják az Oracle Exadata Database Machine-t, vagy egyszeruen csak érdeklodnek azon Oracle technológiák iránt, melyek annyira kimagasló képességuvé teszik ezt a korszakváltó adatbázis szervert. A könyv az alábbi forrásból érheto el: Achieving Extreme Performance with Oracle Exadata (Osborne ORACLE Press Series) Rick Greenwald Apropó, épp félóra múlva lesz egy érdekes webcast arról, hogyan lehet biztonsággal vegyes terhelést futtatni egy Exadata szerveren. Még lehet regisztrálni!

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• Need more RAM?? Running VMmachine + ubuntu

  - by JBizzle

  So I looked but im running ubuntu in vm machine and its running at a snails pace and I installed the 64bit ver. Running windows 7 64bit the down side is that I only have 2GB of ram installed.....bummer huh I know the answer is im going to need more ram I just want to confirm... Or is there an tip that I can do change some settings to make it run faster in VM? I just want verification on what steps I can take if any to speed things up? Thanks Experts!

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• How do i tell ubuntu to only install is asked for and do not bring other dependencies which will break the whole system?

  - by YumYumYum

  How can i only install python-webkit but not other packages? which is showing to install? (no gstreamer*.*, i do not want to have any single files installed in my distro because of GPL license and it slows my machine a lot) $ sudo apt-get install libwebkitgtk-1.0-0 python-webkit Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: libgstreamer-plugins-base0.10-0 libgstreamer0.10-0 Suggested packages: gstreamer-codec-install gnome-codec-install gstreamer0.10-tools gstreamer0.10-plugins-base The following NEW packages will be installed: libgstreamer-plugins-base0.10-0 libgstreamer0.10-0 libwebkitgtk-1.0-0 0 upgraded, 3 newly installed, 0 to remove and 333 not upgraded. Need to get 8,231 kB of archives. After this operation, 28.2 MB of additional disk space will be used. Do you want to continue [Y/n]? n Abort.

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• How to share an USB device(scanner) over network (from Win to Ubuntu)?

  - by B. Roland

  Hi! I have a special thing: I want to share my scanner over the network. The scanner is connected to a Win7 machine, but I want to use it from Ubuntu 10.04... I found some methods: USB over Network - it can handle Linux Windows; and Windows Windows it has Windows (and Win CE) & Linux server, but it has only Windows client, their Linux client is coming soon - that's a drag :( - it is not free, but what uses Windows, what is free? USBip - to Linux Linux, it is free, and nice I'm looking for the other way, what can handle Win Linux thing... I prefer free things, but that thing is maybe not free...

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• Unable to set default gateway

  - by GrandMasterFlush

  I'm running Ubuntu server via Hyper-V and have successfully installed it but seem unable to ping the server or ping any other machines on the network from the server. After doing a bit of reading I've noticed that the default gateway isn't set but when I try and set it I keep getting error messages which I can't understand. From this article I've tried ip route add default via 10.0.10.200 Which reports: RTNETLINK answers: Operation not permitted If I try running it prefixed with sudo but it reports: `RNETLINK answers: No such process I've editted /etc/network/interfaces but when I start the machine and type netstat -nr there is nothing listed. Can anyone tell me where I'm going wrong please? EDIT : /etc/network/interfaces contains: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp

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• How to recover a website's lost robot.txt?

  - by Jessica

  I found my website in the Wayback Machine a few months ago, but today I've tried again and now it tells me it can't find robots.txt. My old webhost stopped paying for their servers back in August without any notice. I was going to do a backup the day it happened. Is there a way just to find the text? I have the old IP, images, but nothing else. None of the big search engines have caches anymore, and I already looked in the cache of three of my Macs with nothing to be found.

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• What are the options for setting up a UNIX environment to learn C using Kernighan and Richie's The C Programming Language?

  - by ssbrewster

  I'm a novice programmer and have been experimenting with Javascript, jQuery and PHP but felt I wasn't getting a real depth of understanding of what I was doing. So, after reading Joel Spolsky's response to a question on this site (which I can't find now!), I took it back to basics and read Charles Petzold's 'Code' and am about to move onto Kernighan and Richie's The C Programming Language. I want to learn this in a UNIX environment but only have access to a Windows system. I have Ubuntu 12.04 running on a virtualised machine via VMWare Player, and done some coding in the terminal. Is using a Linux distro the only option for programming in a UNIX environment on Windows? And what are the next steps to start programming in C in UNIX and where do I get a compiler from?

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• Is remmina 1.0 in the standard universe repositories?

  - by jackweirdy

  I just noticed that the copy of remmina I have on my machine (Running ubuntu 12.04) is 9.99.1 (This is up to date according to apt). The remmina website says that the most recent version is version 1.0 which uses FreeRDP. I'd like to use FreeRDP instead of rdesktop because of the improved MS RemoteApp support. To cut to the chase, is version 1.0 of remmina in the repos, or do I have to install it manually? (I've had a quick browse but haven't found anything). Added:

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• ubuntu server 12.04 new installation does not boot

  - by itsols

  I've just installed server 12.04 on a new machine. It's got two network cards and two hard drives. During installation it asked me if I wanted to make it RAID and I said ok to that. Finally, it came to the packages options and I chose things like Samba, LAMP, etc. And then it asked to reboot without the CD. Did that and that's where the problem started. Nothing comes on the screen. Only a blinking cursor. Has anyone experienced this problem? I'm guessing that it may be a RAID issue. Not sure. Any thoughts please...

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• How to deal with D3DX .dll hell?

  - by bluescrn

  There's a large number of versions of the D3DX dll, from each SDK update, each version having a unique name (http://www.toymaker.info/Games/html/d3dx_dlls.html). All-too-often, people have versions missing. So even though they have a compatible version of DirectX, your D3D-based project won't run on their machine. I want to be able to distribute games (little spare-time projects, game jam entries, etc) as a simple zip file, without the need for an installer. But a significant percentage of users run into missing D3DX .dll errors. And without an installer, Microsoft's official solution (the DirectX web installer/updater) isn't really much of a solution. Unfortunately, Microsoft still won't give us the option of static linking to D3DX (which would be a nice clean solution). And avoiding using D3DX isn't very practical, especially if you're working with shaders (and no, I'm not switching to OpenGL, at least for now) Does anyone have clever solutions to avoiding this DLL hell?

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• Black screen with blinking cursor! [closed]

  - by Draco

  Possible Duplicate: My computer boots to a black screen, what options do I have to fix it? From my Windows XP SP3 machine, I downloaded the live image file for Ubuntu 12.04 LTS. I then burned a bootable CD. Then I went into the BIOS and set installation settings to (first) CD drive and (second) disabled. However, when I boot I only get a black screen with a blinking cursor. After some time I might get some error messages. Even if I leave it for hours I get nothing. FYI: I don't know how to go to the GRUB menu. Please make the answers easy since I am a young beginner.

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• Grub bootloader goes fail to boot in dual boot system after installing Ubuntu 12.10

  - by K.K Patel

  I had 12.04 with my dual boot system. Yesterday I downloaded Ubuntu 12.10 make bootable USB and choose Upgrade option in Installer. After installation Grub failed to boot my machine. I tried following to fix grub bootloder . Same problem I fixed with Ubuntu 12.04 using live USB but this solution not work for Ubuntu 12.10. Now coming at exactly where this solution goes fail. I followed this steps after booting Live USB and opening terminal. 1) sudo fdisk -l to see where Linux is installed 2) sudo mount /dev/sda9 /mnt where sda9 is my linux partition 3) sudo mount /dev/sda9 /mnt/boot 4) sudo mount --bind /dev /mnt/dev 5) sudo chroot /mnt (No problems with this steps done perfectly) 6) grub-install /dev/sda when I type command I got error that source_dir doesn't exist Please specify --target or --directory How can I solve this ?

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• SQLAuthority News – Windows Azure Training Kit Updated October 2012

  - by pinaldave

  Microsoft has recently released the updated to Windows Azure Training Kit. Earlier this month they have updated the kit and included quite a lot of things. Now the training kit contains 47 hands-on labs, 24 demos and 38 presentations. The best part is that the kit is now available to download in two different formats 1) Full Package (324.5 MB) and 2) Web Installer (2.4 MB). The full package enables you to download all of the hands-on labs and presentations to your local machine. The Web Installer allows you to select and download just the specific hands-on labs and presentations that you need. This Windows Azure Training Kit contains Hands on Labs, Presentations and Videos and Demos. I encourage all of you to try this out as well. The Kit also contains details about Samples and Tools. The training kit is the most authoritative learning resource on Windows Azure. You can download the Windows Azure Training Kit from here. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Azure, SQL Download, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Only MKV format available in HandBrake

  - by Steve Ellis

  I am running Ubuntu 14.04 LTS 32 bit. I have installed HandBrake rev5474 (i686), which I believe is the latest, and the Ubuntu Restricted Extras. I am able to play DVDs via VLC but when it comes to ripping them, so that I can back them up to my Twonky media server, I have issues. I launch HandBrake and find that the only format available for me to select is MKV. When I used to run Handbrake on this machine while I was running Ubuntu 13.10 and lower I had no issues and **lots of formats (including MP4 which is what I'm really after) but since reformating and installing 14.04 I've had this issue. Any help would be much appreciated.

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• Sendmail not working as desired in bash script

  - by dan08

  This is the code I have in a bash script that runs as a cronjob. The cronjob run as root. /usr/sbin/sendmail [email protected]<<EOF subject:Backup Error! from:backup@server01 $error EOF There is code after this and the email I get is as follows: From the root user on the machine. and the message includes: subject:Backup Error! from:backup@server01 $error EOF More code... that is in the script all the way to the end... I have tried other variations, this is the closest I've got. I tried this in a regular script and it worked properly. Whats going on, and how can I send this email, specifying the subject and form sender?

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• Bluetooth is always on after waking from hibernate

  - by Ali

  I have a problem that whenever my machine, Lenovo W520, wakes from hibernate the bluetooth starts. It does not matter what the situation was before hibernate. After hibernate the bluetooth is always on. Even in bluetooth settings it says that the bluetooth is off, but I can clearly see that the bluetooth LED is on. I would like to know what the problem is. Is it a hardware problem or software? How can I fix it?

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• No BIOS, no video after ubuntu updates

  - by chubbysilk

  Hello, I am running Ubuntu 10.04 on a Dell Precision T3500 Desktop machine. Last week, when I ran the regular updates, upon restart my video disappeared. I could not even see the Dell startup screen or enter the BIOS. When I swapped out the video card (for an older one I had around), the system worked again. So Dell sent me a replacement video card. I put that in and everything appeared to be working again. Then, I ran updates again, and the same thing happened. Replacement video card appears to be broken. No startup messages, no BIOS, no video at all. Does anyone know how Ubuntu updates might be ruining the video cards? The card that keeps "breaking" is an FirePro MV2260. Thanks, RC

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• /etc/init.d Character Encoding Issue

  - by Ryan Rosario

  I have a script in /etc/init.d on an EC2 image that, on machine startup, pulls in source code via SVN, builds it, and then runs it using Ant. The source code is Java. Within this code is a call to the Weka library which writes a file to disk. On most Ubuntu AMIs, and my home machines' versions of Ubuntu, there is no issue. The problem is that with certain versions/AMIs of Ubuntu, Unicode characters in the file are replaced with question marks ('?'). If I run the job manually on the trouble instance, Unicode is output to file correctly, but not when run from /etc/init.d. What might be causing this problem and how can I fix it so that Unicode characters appear correctly in files written from /etc/init.d processes?

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• Using a DisplayLink USB video adapter on Ubuntu 12.10

  - by Jason R

  The line of USB video adapters made by DisplayLink has a somewhat sordid history under Linux. In past Ubuntu releases, the process of getting them to work has been somewhat difficult, inspiring a number of past questions on this site: example 1 example 2 example 3 However, there are some indications that version 3.5 of the Linux kernel (which is used by 12.10) contains better support for these adapters, which should make them easier to use. I currently have a single-GPU machine (it is an Nvidia adapter) with dual monitor outputs. I would like to add the DisplayLink adapter to drive a third external monitor. How can I set this up on Ubuntu 12.10?

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• Not getting GUI mode on ubuntu 12.04 desktop edition after installation on vmware workstation 7

  - by Salil Naik

  I installed Ubuntu 12.04 desktop edition on my PC using VMWare workstation 7. I assigned 1GB RAM and 20 GB Hard disk to Ubuntu. While starting Ubuntu virtual machine, It is not starting up with GUI mode. In is prompting me my Login ID in textual mode always. After waiting for long time as well the GUI mode is not appearing. I tried running sudo apt-get install updates sudo apt-get install xinit sudo apt-get install ubuntu-desktop Honestly, i don't know the meaning of all these.I am very new to ubuntu.Please help me here what to do? Below is my Laptop configuration OS: Genuine Windows 7 Home Basic(64 bit) RAM: 3 GB Processor: Intel core i3 Regards Salil

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