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• Adding partitions to dual boot on Windows

  - by Bernard

  I am trying to install Ubuntu 12.04 along side Windows 7 on an HP mini 210 netbook. I have down loaded an iso image OK and got the installation program working but I am having problems with partitioning. I want to keep my Windows installation intact so I am following the 'Other' installation route. I have managed to shrink the main Windows partition down to 50GB leaving 250GB free space but I can't find a way of adding any extra partitions for Ubuntu. The free space gets listed by the installer as 'unusable' but on the graphic at the top its called 'free space'. If I select this and click 'Install Now' I get an error message: 'No root file system is defined'. I have tried clicking the Add, Change Delete and New Partition table buttons with the unusable partition selected and nothing happens. How do I define a root mount point when I do not have any Linux partitions?

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• Run command in command prompt from Ruby application

  - by Julian

  I have a command-line Ruby application that uses Curses to create a GUI. This GUI is absolutely mangled by Windows' command prompt if the command prompt window is too small. The command prompt window can be resized in properties. However, I want to resize it programatically. Running this command in the command prompt (nothing to do with Ruby) will resize the command prompt window to desired variables. mode con:cols=120 lines=40 Can I do this purely in Ruby? Or, failing that (I suspect doing it purely in Ruby may be impossible) can my ruby application actually run that command and 'hit enter', and resize window it's running in?

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• how to set owner and permission to a cryptsetup made device?

  - by Antoine Rodriguez

  I have an encrypted loopback volume. I need to mount and umount manually the volume so I use cryptsetup luksOpen and cryptsetup luksClose . However, When I invoke this command it pops up the /dev/mapper device under all the sessions under gnome/xfce/kde/unity ... And then it let the user to mount (with password), expulse and unmount the volume. It's quite annoying in a multi user server (you are working on your files and the volume is being unmounted). How can I define ownership and permission on the device ? I've tried chown and chmod approach witch gives nothing. Cryptsetup doesn't have any options that let you do that. crypttab auto mount the filesystem on boot witch is unwanted (only manual mount)

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• How to convert unconvertable & unviewable .ts files?

  - by Evelin Versh

  How to convert .ts files that can not be converted with usual WinFF, Avidemux etc programs? The .ts files in question are recorded from TV with STV digital cable digibox, viewable to me so far ONLY with that same digibox. All the video-playing programs i tried do not open the files at all (e.g. classical VLC and WinMedia player). All but 1 video converters i tried also are not able even to open or load the file into the program, therefore no conversion is possible. According to WinFF it can not find codec parameters during the conversion, evidently leading to nothing-happening???! HELP!, please.

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• Check/Monitor Amount of SQL Queries per Hour

  - by deathlock

  My website is hosted on a shared hosting and I'd like to know how much SQL queries it is using per hour. I tried to navigate through cPanel and I find nothing to check or monitor the amount of SQL queries per hour. I tried to ask my host and they said it is not possible to do manually. However I found this http://forum.powweb.com/archive/index.php/t-49937.html and another one on Stackoverflow: http://stackoverflow.com/questions/9842094/sql-how-can-i-get-the-number-of-executed-queries-per-database-or-hour-or And since this exists, I assume that it is actually possible. Problem is I can't execute that in my phpmyAdmin. Can someone here guide me through the process?

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• ddclient - wont update Invalid Keyword for 'ip' =

  - by stueng

  /etc/ddclient.conf use=web, web=checkip.dyndns.org/, web-skip='IP Address' protocol=easydns ssl=yes server=members.easydns.com login=stueng password='****' home.***.** /var/log/syslog Jun 4 13:02:34 XBMCuntu ddclient[10554]: WARNING: file /var/cache/ddclient/ddclient.cache, line 3: Invalid Value for keyword 'ip' = '' Jun 4 13:02:34 XBMCuntu ddclient[10554]: WARNING: skipping update of home.***.** from <nothing> to 90.193.*.*. Jun 4 13:02:34 XBMCuntu ddclient[10554]: WARNING: last updated <never> but last attempt on Mon Jun 4 13:01:57 2012 failed. Jun 4 13:02:34 XBMCuntu ddclient[10554]: WARNING: Wait at least 5 minutes between update attempts. Help?

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• Java - learning / migrating fast

  - by Yippie-Kai-Yay

  This is not one of those questions like "How do I learn Java extremely fast, I know nothing about programming, but I heard Java is cool, yo". I have an interview for a Java Software Developer in a couple of weeks and the thing is that I think that I know C++ really good and I am somewhat good at C# (like, here I can probably answer on a lot of questions related to these languages), but I have almost zero experience with Java. I have a lot of projects written in both languages, I participiated in several open-source projects (mostly C++, though). Now, what should I do (in your opinion) to prepare myself for this Java interview. I guess migrating from C# to Java should be kind of fast, especially when you know a lot about programming in global, patterns, modern techniques and have a lot of practical experience behind you. But still two weeks is obviously not enough to get Java in-depth - so what should I focus on to have the best chances to pass the interview? Thank you.

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• Security issue about making my code public in GitHub

  - by John Doe

  I'm developing a big community/forum website and I'd like to upload my code to GitHub to have at least some sort of version control over it (because I have nothing other than a .rar file as a backup, not even SVN), to let others contribute to the project, and also perhaps using it to let my potential future employers see some of my code as some sort of curriculum. But what I'm wondering now, and I'm suprised I haven't seen anyone mention it before is the security aspect of it. Isn't publishing the code of a website a HUGE security hole? Is like giving a potential hacker or anyone who would like to find any potential exploit possible, even considering that the critical files aren't uploaded (database passwords, authentication scripts, etc.). Of course that there are millions of projects uploaded to GitHub and no one will find mine just 'by chance'. But if they look for it, it would indeed be there. Bottomline: my problem is not about copyright or licenses, but others finding exploits in my website. I'm I missing something here?

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• IIS 8 FTP

  - by The Official Microsoft IIS Site

  This post began its life as ‘What’s new in IIS 8 FTP’ but has since morphed into something quite different. As the ultimate goal is still to talk about what’s new with FTP for IIS 8, I have retained IIS, 8, and FTP in the title but nothing more. Many of us are cognizant of the history of the Internet but I will do a quick review to build the foundation of this post. We know that it wasn’t Al Gore’s extensive technical knowledge that built the foundations of the...(read more)

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• Installing MATLAB Ubuntu 12.10, persistent "permission denied" problem

  - by Javier

  I'm trying to install MATLAB on Ubuntu 12.10, I had it in my last laptop with 12.04 and I didn't have much trouble to install it. I'm getting this problem: j@jgb:~/Programs/Instaladores/matlab$ ./install Preparing installation files ... Installing ... ./install: 1: eval: /tmp/mathworks_1436/sys/java/jre/glnxa64/jre/bin/java: Permission denied Finished And it doesn't change if I change the permissions to the java file or to the install file as other posts say. In my /etc/fstab file I had this line added (But nothing changes if I comment it): tmpfs /tmp tmpfs nodev,nosuid,noexec,mode=1777 0 0 Thanks

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• IBus icon is missing at startup?

  - by quanta

  After some installing, tweaking, ... the IBus icon is missing at startup, although it's working fine: $ ps -ef | grep [i]bus quanta 1918 1890 0 09:54 ? 00:00:01 /usr/bin/ibus-daemon --xim quanta 1946 1918 0 09:54 ? 00:00:00 /usr/lib/i386-linux-gnu/ibus/ibus-gconf quanta 1948 1918 0 09:54 ? 00:00:00 /usr/bin/python /usr/share/ibus/ui/gtk/main.py quanta 1951 1 0 09:54 ? 00:00:00 /usr/lib/i386-linux-gnu/ibus/ibus-x11 --kill-daemon quanta 1987 1918 0 09:54 ? 00:00:00 /usr/lib/ibus-unikey/ibus-engine-unikey --ibus I can make it appear by restarting the ibus-daemon: $ ibus-daemon -x -r -d I also have tried to add the IBus to the System tray whitelist but nothing changes. How can I troubleshoot this issue?

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• How much PHP do I need to know to use AJAX?

  - by user1146440

  Hi I am interested in learning to create AJAX calls with Javascript.I already know Javascript and I would like to learn PHP at some point but at the moment I know nothing about it and I don't have the time to learn the full language. How much PHP do I need to know to be able to do AJAX calls? Can someone recommend me some good resources to get familiar with what I need to learn from PHP so I can learn AJAX.I am planing on starting to read AJAX and PHP: Building Modern Web Applications 2nd Edition but I think I need to know some basic PHP.

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• How to mount nexus 7 file system to view files from command line

  - by knotech

  Just got a Nexus 7, switched MTP on and plugged it in. It pops right up in nautilus, is titled Nexus 7, and lets me browse all of the files. However, on the command line, it's simply listed as /media/usbdrive and when I try to list the files, nothing comes up. Do I have to manually mount it in order to navigate the files from the command line? And why is it that nautilus recognizes it, and has access immediately, but I can't get at it from the command line?

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• Error mounting VirtualBox shared folders in an Ubuntu guest

  - by skaz

  I have Ubuntu 10 as the guest OS on a Windows 7 machine. I have been trying to setup shares through VirtualBox, but nothing is working. First, I create the share in VirtualBox and point it to a Windows folder. Then I try to mount the drive in Linux, but I keep getting /sbin/mount.vboxsf: mounting failed with the error: Protocol error I have read so many solutions to this, but none seem to work. I have tried: Using the mount.vboxsf syntax Reinstalling VBox additions Rebooting Enabling and trying as root account I made a share called "Test" in VBox Shared folders. Then I made a directory in ubuntu named "test2". Then I tried to execute this command: sudo mount -t vboxsf Test /mnt/test2 Any other ideas?

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• Recovering domain name from a person I can't find

  - by Daniel Gruszczyk

  I have a problem with one domain and I have no idea how to go about it. I am volunteering for a small charity in Sheffield (UK), more specifically I am redoing their website. A while ago (few years) there was one guy who made that website for them, sorted out a free hosting with another charity, bought domain name etc. Since the domain name is registered in his name, and he disappeared and we have no way of finding/contacting him, we can't move it to different hosting or do virtually nothing about it. Somehow the domain is being renewed every year, we know which domain registration service provider it is registered with, we know the guys name, and that's about it. How would we go about re-registering that domain in the charity's name, instead of that guy, is that at all possible? If we happen to get in touch with him, what should we ask for? Thanks for your help.

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• Problem installing ubuntu touch on galaxy nexus

  - by Francesco

  I've installed ubuntu touch on my galaxy nexus following the tutorial on the official site. However the latter is not so clear.. In particular, during the installation, user action on the phone is requested and not documented on the tutorial: 1) The phone asked me whether rebooting, wiping the cache or something else (i did nothing and the phone rebooted) 2) The phone asked me whether replacing or not cmw (or something similar). I asked no.. After the installation all seemed to work correctly. However after shutting down the phone can't power on anymore... When I push the power button the battery icon appears, showing that the battery is completely charged. What am I supposed to do?

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• Just updated, after reboot my computer won't start up again

  - by Alex

  I have a macbook that I use on occasion which dual boots Ubuntu and OSX (It has rEFIt installed). I turned it on for the first time in a while and it needed a bunch of updates. So I let it run, and restarted it when it asked. When it was booting up, it got stuck at a light blue screen. There was nothing on the screen to indicate that it was doing anything - I figured it just got stuck or something, so I turned it off and back on. (I suspect now it was actually working, but I had no indication that it hadn't just frozen) Now I can't access either OSX or my Ubuntu partition. When I choose ubuntu on the rEFIt menu, it shows "No bootable device -- insert book disk and press key". If I try to start up OSX is looks like it starts loading, but instead of an apple logo there's a crossed out circle icon.

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• Efficient skeletal animation

  - by Will

  I am looking at adopting a skeletal animation format (as prompted here) for an RTS game. The individual representation of each model on-screen will be small but there will be lots of them! In skeletal animation e.g. MD5 files, each individual vertex can be attached to an arbitrary number of joints. How can you efficiently support this whilst doing the interpolation in GLSL? Or do engines do their animation on the CPU? Or do engines set arbitrary limits on maximum joints per vertex and invoke nop multiplies for those joints that don't use the maximum number? Are there games that use skeletal animation in an RTS-like setting thus proving that on integrated graphics cards I have nothing to worry about in going the bones route?

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• Where can I start learning to build web applications in C#

  - by Carson Myers

  So far I've written web sites in PHP, except for a pet project of mine written in Python. I'd like to start learning C# for use on the web, but I have no idea where to start. I know nothing of .Net. Are there any good tutorials or online books etc. which give a brief intro to the .Net environment (specifically C#, and specifically for the web)? I'm not even sure what I need to install. Visual Studio I guess, but what else? Anything special, or will VS do the trick?

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• Using idle time in turn-based (RPG) games for updating

  - by The Communist Duck

  If you take any turn based RPG game there will be large periods of time when nothing is happening because the game is looping over 'wait_for_player_input'. Naturally it seems sensible to use this time to update things. However, this immediately seems to suggest that it would need to be threaded. Is this sort of design possible in a single thread? loop: if not check_something_pressed: update_a_very_small_amount else keep going But if we says 'a_very_small_amount' is only updating a single object each loop, it's going to be very slow at updating. How would you go about this, preferably in a single thread? EDIT: I've tagged this language-agnostic as that seems the sensible thing, though anything more specific to Python would be great. ;-)

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• How do I make music sync with iOS 5 in Ubuntu 11.10 work?

  - by Alex Cristian

  I've tried several tutorials on the internet but nothing works. This is not a duplicate, it is true that there are several of them about ios5 but not one of them asks specifically about music syncing or ubuntu oneiric ocelot... I'm just so angry at Apple because of this, my iPod classic syncs just fine with Banshee but my iPad 2 won't, because they suddenly decided to change how uploading music to their app works in ios5. I looked around and saw that an unstable libimobiledevice-1.1.2. was available, but I can't manage to install it! It's a nightmare, any help would be greatly appreciated.

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• How to use lemodev highscore plugin for unity?

  - by user3889649

  I am trying to add a server-sided highscore system to my game in unity. I have downloaded the free lemodev highscore plugin from the asset store but I cant figure out how to use it. I know where to put my server info and so on but other what are you supposed to do ? I added the main camera prefab that came with the package to my scene but other than adding an additional camera it did precisely nothing ( at least it seems that way ). Could anyone look into it and tell me how to use it ? The developer's website seems to have no information on the subject.

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• Doing "it all from scratch" is different than OS-specifics

  - by Bigyellow Bastion

  Many people tell me that in order to write my own operating system I need to understand the inner-workings of the one I'll be writing it on. That's nonsense. I mean I understand it for education purposes, such as studying the workings of a current OS to gain better knowledge of writing one myself. But the OS I'm writing it on is nothing but my scratchpad offering me software to write the code in, and software to assemble/compile my code into executable instructions. I've been told that I need to decide which OS I'm writing it on before I write it, but all I need is an assembler to produce flat binary, or a compiler to produce object code and a linker to link it into a flat binary .bin file. Why do people say it matters which OS you make an OS on, when it doesn't?

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• Ubuntu on AMD based Sony Vaio VPCY B15AG

  - by Gaurav

  Last week I bought a AMD E350 (AMD Fusion platform) based Sony VAIO (VPCYB15AG) having AMD Radeon HD 6310 graphics, I removed Windows that came along with and installed Ubuntu 10.10 (AMD64) using USB drive. During installation my touchpad was not working, I managed through keyboard, but after completing installation & restarting the machine still there was no touchpad support. Also there's no proper graphic card drivers. Even I tried connecting the USB mouse to it but the left key is not working and had to configure the mouse as left-hand to get the left click enabled. I tried searching for any possible solutions for these but found nothing helpful, is there any hope? What should I do to enable i) enable touch pad support ii) get higher resolution 1366x768, etc?

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• Wireless device not working...supposed problem with b43 driver

  - by Francesco

  I just installed Xubuntu 11.10 onto an old Acer Aspire 3003wlmi. The wireless card is not working. I did all the passages illustrated in the troubleshooting guide but I came up with nothing. It says that driver is b43, but when I booted from the installation cd I noted down some messages saying "Error - b43/ucode " and "Error b43/phy_...something". I had Ubuntu 10.10 installed before and I remember I had similar problems but I don't remember how to solve it. If you please can help me. thanks a lot. Francesco

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