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• Getting "Unable to find a medium containing a live file system" when installing 10.10

  - by Krastin Konstantinov

  I got this error while trying to install ubuntu 10.10 from a bootable USB stick on to Sony Vaio P series laptop. The disk boots into the language and installation type screen. After that it goes through the splash and pulls up this error: BusyBox v1.13.3 (Ubuntu 1:1.13.3-ubuntu11) built in shell (ash) Enter 'help' for a list of built-in commands. (initramfs) Unable to find a medium containing a live file system After getting this error the installation fails to start. I have used the same USB stick on some other laptops and the installation started as usual. Any help will be appreciated. My installation is i386 and my machine is Vaio P VGN-P610. I've tried every possible thing: Bios: [enable boot external] Boot order: [external] [hard drive] [network boot] Tried 2 different USB drives Tried 2 different external CD drives Tried 6 different downloads of both the desktop and netbook remix. All downloads were checked with MD5SUM. Ubuntu Desktop 9.10 installs properly in every version and from every source. Getting reaaaally frustrated.

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• Slow Starting DHCP Client Service - HP Thin Clients

  - by Ryan

  We have recently began adding XPe thin clients to our domain in preperation for a new citrix environment. One thing that has been picked up on in testing is that they appear slow to boot. The issue manifest's it's self as the classic "Applying Computer Settings..." screen we are all used to seeing. After digging into the issue it appears the DHCP Client service is taking some time to load on boot, this varies but I would estimate it can take around 1 minute in some cases. I've eliminated the classic issues, DHCP is responding correctly and in quick time. DNS is not the cause and GPO's are applying promptly. A simple workaround is to assign the client a static IP which work's great so the TCP/IP servies are obviously firing up quickly, just not DHCP Client. Does anyone have any idea's on how I may be able to improve the service start time? Keen to find a better solution before I get my arm twisted into setting up 250 thin clients with static addressing!

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• ubuntu12.04 hangs at checking battery state

  - by crystalbass17

  My 12.04 system hangs at "Checking battery state". At this stage, no commands work eg: ctrl+alt+f1, alt+f5. I ran recovery mode, I ran the command sudo mount -o remount, rw sudo dpkg-reconfigure gdm and gdm was the only one installed so I didn't get a GUI screen. I have an integrated graphics card "Intel Corporation Mobile 4 chipset Integrated Graphics Controller (rev 07)". So I cannot install nvidia drivers as everyone else suggests. I have gone through several similar questions but everyone suggests reconfiguring gdm or reinstalling graphic drivers. I did sudo add-apt-repository ppa:ubuntu-x-swat/x-updates sudo apt-get update sudo apt-get upgrade to get the latest x-swat drivers. The system still hung at the same line. The other option is to reinstall ubuntu, which is out of the question, since we have a very specific install for our project where the settings are very hard to duplicate. Suggestions/Comments welcome.

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• How to make my simple round sprite look right in XNA

  - by Joshua Perina

  Ok, I'm very new to graphics programming (but not new to coding). I'm trying to load a simple image in XNA which I can do fine. It is a simple round circle which I made in photoshop. The problem is the edges show up rough when I draw it on the screen even with the exact size. The anti-aliasing is missing. I'm sure I'm missing something very simple: GraphicsDevice.Clear(Color.Black); // TODO: Add your drawing code here spriteBatch.Begin(); spriteBatch.Draw(circle, new Rectangle(10, 10, 10, 10), Color.White); spriteBatch.End(); Couldn't post picture because I'm a first time poster. But my smooth png circle has rough edges. So I found that if I added: spriteBatch.Begin(SpriteSortMode.FrontToBack, BlendState.NonPremultiplied); I can get a smooth image when the image is the same size as the original png. But if I want to scale that image up or down then the rough edges return. How do I get XNA to smoothly resize my simple round image to a smaller size without getting the rough edges?

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• How can I flush my ssh keys on power management activity?

  - by Sam Halicke

  Hi all, Using ssh-agent and private keys per the usual. Everything's working as normal. My question regards best practices on flushing keys from ssh-add on activity like sleep, suspend, hibernate, etc. I thought about writing a simple wrapper around those commands, but then wondered if are they even called? Or does the kernel initiate this activity directly? Are the PM utilities strictly userland? I would like this additional layer of security beyond locking my screen, etc. and was wondering if anyone else had solved this elegantly or has best practices to recommend. Thanks.

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• How to forward AIM to Gmail

  - by iamjames

  Still have an old AIM email address lying around and would like to forward it to Gmail?  Here's how: 1.  Login to your AIM and click on Settings on the far right 2.  In the left menu click IMAP and POP  3.  This shows you your IMAP and POP setup information for AIM.  We're going to put this into your Gmail account so your Gmail account will check your AIM account and download all AIM emails. 4.  Login to your Gmail, click Settings and click Accounts and Import 5.  Click "Import mail and contacts".  A new window will pop up asking what account you want to import.  Enter your AIM Email Address and click Continue 6.  The next page asks for your password.  Enter your password and click Continue.  Step 2 asks your Import options.  I'd put a checkmark in "Leave a copy of retrieved message on server".  That way all your mail is still stored on AIM if you ever need it. 7.  Click Start import and you're done.  Next screen says it make take several hours up to 2 days before you start seeing imported messages and can check the status at Settings > Accounts and Import

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• What is an Enterprise Resource Planning (ERP) System?

  In order to understand what an Enterprise Resource Planning System is let us look at a classic American kids snack, the Rice Krispy Treat if we conceptually view the treat as a company’s internal applications as a whole.  Furthermore we can view a company’s departmentalized software applications as the theoretical Rice Krispies in the treat. In addition, the Rice Krispies consist of a combination of ingredients that be broken down into data, user interfaces and business logic. Next, we have the margarine or butter that is used to help the marshmallows bind with the Rice Krispies; this role in our conceptual view is taken by a data source typically as a relational database management system. Finally we have the melted marshmallows which act as the ERP software that connects all of the individual departmental software applications in to one unified system that allows all user one unified system to interact with all of the individual dispersed systems. An example of this would be if a customer places an order with a telephone operator and once the orders is processed an employee in the shipping department can see the order ready for fulfillment on his order screen. The ERP acts a go between for various independent departmental systems so that they can integrate with one another.

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• Image 1 becomes image 2 with sliding effect from left to right?

  - by Paul

  I would like to show a second image appearing while a "door" is closing on my character. I've got my character in the middle of the screen and a door coming from the left. When the door passes my character, I would like to have this second image appearing little by little. So far, I've gotten by with fadingOut the character and then fadingIn my second image of the character at the same position when the door is completely closed, but I would like to have both of them at the same time. (the effect that image 1 becomes image 2 when the door is sliding from left to right). Would you know how to do this with Cocos2d? Here are the images : at first, the character is blue, and the door is coming from the left : Then, behind the black door, the character becomes red, but only behind this door, so it stays blue when the door is not on him, and will become completely red when the door passes the character : EDIT : with this code, the black door hides the red and blue rectangles : (And if i add each of my layers at a different depth, and only use GL_LESS, same thing) blue.position = ccp( size.width*0.5 , size.height/2 ); red.position = ccp( size.width*0.46 , size.height/2 ); black.position = ccp( size.width*0.1 , size.height/2 ); glEnable(GL_DEPTH_TEST); [batch addChild:red z:0]; [batch addChild:black z:2]; glDepthFunc(GL_GREATER); [batch addChild:blue z:1]; glDepthFunc(GL_LESS); id action1 = [CCMoveTo actionWithDuration:3 position:ccp(size.width,size.height/2)]; [black runAction: [CCSequence actions:action1, nil]];

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• Generic tool to configure startup applications on Unix

  - by srid

  Is there an automated deployment tool that manages startup applications on a variety of machines, especially the Unices? Or is the only hope to study the nuts and bolts of each Unix (osx, linux, solaris, hpux, aix) on how to configure applications to launch on system startup? I want to run them as a specific user, instead of root. At the moment, I run them all within a screen session .. which is a hassle, as this requires manual intervention every time the machine is rebooted for some reason. Ideally, I am looking for a tool that would read, say, ~/.startup-programs which file contains, on each line, the command line to launch the needed daemons. And this tool should work on OSX, Linux, Solaris, HPUX and AIX ... writing the appropriate startup scripts for each platform.

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• C# Cursor stuck on busy state

  - by Ben

  So I implemented a fixed time step loop for my C# game. All it does at the moment is make a square bounce around the screen. The problem I'm having is that when I execute the program, the window doesn't allow me to close the program and the cursor is stuck on the busy icon. I have to go into visual studio and stop the program manually. Here's the loop at the moment public void run() { int updates = 0; int frames = 0; double msPerTick = 1000.0 / 60.0; double threshhold = 0; long lastTime = getCurrentTime(); long lastTimer = getCurrentTime(); while (true) { long currTime = getCurrentTime(); threshhold += (currTime - lastTime) / msPerTick; lastTime = currTime; while (threshhold >= 1) { update(); updates++; threshhold -= 1; } this.Refresh(); frames++; if ((getCurrentTime() - lastTimer) >= 1000) { this.Text = updates + " updates and " + frames + " frames per second"; updates = 0; frames = 0; lastTimer += 1000; } } }

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• How to remove settings from a Microsoft Account Windows 8?

  - by Stevie G

  When installing windows 8 for the first time, I did not create a microsoft account and just installed as the local user. However I recently updated to Windows 8.1 and it forces you to use a microsoft account. I did not want to create an account so one of my friends used his and I logged in. After logging in all the friend's details like apps, wallpaper, lock screen, search mechanism, when I use search i see the friends facebook friends popping up. it is really annoying. How can I remove all of this excess, as I have logged out of the microsoft account and am just using local user but these problems have persisted. Thanks

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• Weird problem, special characters after formatting the hard drive, computer not starting 0_o

  - by m3taspl0it

  Hya friends , Last night my computer was working fine. But today when i came back from college and started it , it was starting fine but after sometime it's getting restarted , again and again getting restarted at different points , so i tried to boot it in safe mode but same problem. Now after all this , i finally decided to format the drive C (it is in 80 GB) and load new OS windows XP3. After formatting and loading xp3 sufficient files , when it was getting rebooted for copying the actual os files , it hung and a weird screen came. I've also attached the pic of error : http://www.postimage.org/image.php?v=gxz1vKS My specs : P4 3.0 Ghz 2 GB RAM (2x 512 mb and 1 GB) 3 hard drives { 80 GB (5 years old around) 320 GB ( 2 years old around) 500 GB ( recently bought) 256 MB graphics card any help is very appreciated , thanks

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• Wordpress Automatic Updating/Installing Plugins Permissions

  - by karmic

  I am using the latest Wordpress and I have always had issues with the automatic updater. For the files in the wordpress directory, i set them to permission 770, and add the webserver user 'www-data' as the group owner. I use lighttpd. However, the automatic updating plugins or installing plugins does not work. It works if I chmod 777 the files or if I set the actual owner to the web server as well. What are the best permission settings for security while still allowing the updating feature to work properly in wordress? Also, by 'not work' i mean, it will go to the screen that asks me for FTP credentials when I try to update.

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• Quaternion LookAt for camera

  - by Homar

  I am using the following code to rotate entities to look at points. glm::vec3 forwardVector = glm::normalize(point - position); float dot = glm::dot(glm::vec3(0.0f, 0.0f, 1.0f), forwardVector); float rotationAngle = (float)acos(dot); glm::vec3 rotationAxis = glm::normalize(glm::cross(glm::vec3(0.0f, 0.0f, 1.0f), forwardVector)); rotation = glm::normalize(glm::quat(rotationAxis * rotationAngle)); This works fine for my usual entities. However, when I use this on my Camera entity, I get a black screen. If I flip the subtraction in the first line, so that I take the forward vector to be the direction from the point to my camera's position, then my camera works but naturally my entities rotate to look in the opposite direction of the point. I compute the transformation matrix for the camera and then take the inverse to be the View Matrix, which I pass to my OpenGL shaders: glm::mat4 viewMatrix = glm::inverse( cameraTransform->GetTransformationMatrix() ); The orthographic projection matrix is created using glm::ortho. What's going wrong?

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• Moving while doing loop animation in RPGMaker

  - by AzDesign

  I made a custom class to display character portrait in RPGMaker XP Here is the class : class Poser attr_accessor :images def initialize @images = Sprite.new @images.bitmap = RPG::Cache.picture('Character.png') #100x300 @images.x = 540 #place it on the bottom right corner of the screen @images.y = 180 end end Create an event on the map to create an instance as global variable, tada! image popped out. Ok nice. But Im not satisfied, Now I want it to have bobbing-head animation-like (just like when we breathe, sometimes bob our head up and down) so I added another method : def move(x,y) @images.x += x @images.y += y end def animate(x,y,step,delay) forward = true 2.times { step.times { wait(delay) if forward move(x/step,y/step) else move(-x/step,-y/step) end } wait(delay*3) forward = false } end def wait(time) while time > 0 time -= 1 Graphics.update end end I called the method to run the animation and it works, so far so good, but the problem is, WHILE the portrait goes up and down, I cannot move my character until the animation is finished. So that's it, I'm stuck in the loop block, what I want is to watch the portrait moving up and down while I walk around village, talk to npc, etc. Anyone can solve my problem ? Or better solution ? Thanks in advance

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• Where does the information shown by OS X Terminal 'Display all commands' feature come from?

  - by Sergio Acosta

  I just learned that if you hit and hold ESC while on the Mac Terminal, a prompt appears after a few seconds offering to show every command available on your system, including aliases, built-ins, and executables on your PATH. Soruce: http://www.mactricksandtips.com/2008/05/list-all-possible-terminal-commands.html However, the output is show through a more filter, and I cannot grep it or pipe it to another command. Does anyone know how this magic output is generated? Is it just generated on the fly by Terminal? Is there a bash command that can be called explicitly on the command line and get the same result? It is mostly curiosity, but I would love to be able to get the results as text I can post-process and not just browse on screen.

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• Installing Ubuntu on Asus G75VW (UEFI)

  - by user101653

  You all are my last hope... help! I bought an Asus G75VW from Best Buy. It has the new UEFI BIOS instead of the old style BIOS (1980's) and has Windows 8 preinstalled. I cannot get the G75VW to install Ubuntu 12.10 in EFI mode. I did get Ubuntu to load if I changed the BIOS to CSM and the computer sees and installs Ubuntu in "legacy mode". I attempted boot repair, and Ubuntu will load after 1 minute but as legacy BIOS only. If I changed the BIOS to UEFI "Binary is whitelisted" is displayed and I get a purple screen. My goal... keep my preinstalled Windows 8 on internal drive bay 1 and install Ubuntu 12.10 on internal drive bay 2... and somehow make a choice on which to choose. I am at a loss. I am a software programmer, but I am very bad at understanding BIOS and partitioning. Any ideas? Has anyone done what I want to do. This is a full second day on my "issue"! If I cannot get Ubuntu installed, I'm returning the laptop. And "wait" until these obstacles of UEFI/EFI and properly handled to allow people to load EFI based Ubuntu without a hitch. Thanks, Dave

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• Ubuntu PowerEdge T110

  - by Josh

  I just got a Dell PowerEdge T110 server. I moved the boot order to CD - HDD - NIC, then installed Ubuntu 10.10, Desktop Ed. I chose install alongside other OS (even though there was none), then chose use entire partition. It showed that Ubuntu would use 160 of the 160 available GB. It installed, updated (while installing), then said, need to eject and restart, as usual. It restarted, but to a blank screen. No output whatsoever. Not even BIOS. Just blank. The monitor isn't even woken from sleep. Power cycled, still doing it. Tested the monitor with a laptop, and it is fine. What on earth is going on here?

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• How does font rendering actually work?

  - by Andrea

  I realize that I know essentially nothing about the way fonts get rendered in my computer. From what I can observe, font rendering is generally made in a consistent way throughout the system. For instance, the subpixel font hinting settings that I configure in my DE control panel have influence on text which appears on window borders, in my browser, in my text editor and so on. (I should observe that some Java applications show a noticeable difference, so I guess they are using a different font rendering mechanism). What I get from the above is that probably all applications that need font rendering make use of some OS (or DE)-wide library. On the other hand, browsers usually manage their own rendering through a rendering engine, that takes care of positioning various items - including text - according to specific flow rules. I am not sure how these two facts are compatible. I would assume that the browser would have to ask the OS to draw a glyph at a given position, but how can it manage the flow of text without knowing beforehand how much space the glyph will take? Are there separate calls to determine the glyph sizes, so that the browser can manage the flow as if characters were little boxes that are later filled in by the OS? (Although this does not take care of kerning). Or is the OS responsible for drawing a whole text area, including text flow? Does the OS return the rendered glyph as a bitmap and leaves it to the application to draw that on the screen?

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• Laptop freezes on Wireless Mouse Adapter attach/detach

  - by Sergiy Byelozyorov

  I am using Microsoft Wireless Notebook Optical Mouse 3000 with Toshiba Satellite Pro P300-1CG. Recently I have installed Windows 7 64-bit. Now once in a while when I plug-in or plug-out wireless mouse adapter, the computer freezes (image stays on the screen, but the computer is not responsive). I have noticed that it mostly happens after I recover my computer from sleep mode. To continue using laptop I have to shut it down by pressing and holding power button for 7 seconds and then booting it up again. What can be done to prevent this?

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• How to suppress or disable the shutdown option from indicator menu or shutdown dialog?

  - by user73093

  My goal is to allow user only to restart the system, and deny any shutdown (suspend, hibernate). I am running unity-2d. I 've managed to deny suspend and hibernate with polkit policy files like explained in How to disable shutdown/reboot/suspend/hibernate? I observed that is has somehow disable shutdown abilities, but hasn't removed "shutdown" entry from the indicator panel menu neither as well as the "shutdown..." button from the shutdown dialog. Pressing shutdown button at this point restarts lightdm, returning to the login screen. My goal is to remove any "shutdown" action and button. So, I 've added an ovveride file in /usr/share/glib-2.0/schemas that contains some rules: [com.canonical.indicator.session] suppress-shutdown-menuitem = true (all suppress-*-menuitem has "false" value by default in the schema) Compiling, restarting X, now there is an entry "close session..." in the indicator panel menu...: it's not what I want. at this point, if I set another entry suppress-logout-menuitem to true I got no entry in the indicator panel menu. Trying like this all combination doesn't give the opportunity to remove "shutdown" references/buttons without removing restart option. All I want is to remove any reference to "shutdown" but keep a "restart" option somewhere in the indicator menu... Thanks !

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• Browser-based Operating System

  - by Ross Peoples

  I have a bunch of touchscreen machines that I want to display a webpage on and have users interact with the webpage via the touchscreen. Right now, this is done with a full-blown OS with a browser set to run at startup. I think maybe the ideal solution is to use a Linux-based OS that boots up, starts X, then starts a web browser (Chrome, Firefox, or whatever) in full screen mode. What kind of options do I have? I really want to avoid using a full-blown OS like I do now. It looks unprofessional and takes a while to boot up. I was thinking maybe Chrome OS or something, but I wouldn't know how to set it up for my purposes, since it's still designed to be used as a desktop OS instead of a kiosk-type OS.

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• Setting up Debian squirrelmail

  - by Muazam

  I'm new to networking. I need to set up a email server and I also need to create an email address. ex. [email protected] I've installed squirrelmail and dovecot. http://www.mydomain.com/squirrelmail/src/login.php Shows a log in screen, but when I try to log in I get this error: Error connecting to IMAP server: 127.0.0.1. 111 : Connection refused I have no experience with squirrelmail and dovecote. Anyone can help me out, I really appreciate it. Thanks!

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• Running Android emulator inside a Virtualbox Vm

  - by sgargan

  I'm trying to setup a VM with a complete android development stack (SDK, Platforms, Eclipse etc) for a Hackathon. I'm having real trouble getting the emulator to start in the VM. I realize that the emulator is essentially a VM itself inside the Vbox VM and so is going to be slow, but it just hangs at the Android splash screen and never gets any further. Might there be something going on with the VM that is causing it to run so very slowly? Is there anything I can do to give the VM more CPU? I've tried setting the execution cap to 100% but it didn't help any. Anyone know what might be going on here, or have any ideas about how I might speed it up? Thanks Steve.

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• Localhost permissions given different values in fireftp and cs4 dreamweaver

  - by YsoL8

  While testing a file uploader on my localhost ( mamp on mac ) I've hit a problem. Trying to fix a folder permissions problem, I used CS4 Dreamweaver's permissions screen to set 0777 permissions. However these wouldn't apply and stayed stuck on 0, so I opened fireftp and accessed the folder in the local panel. The permissions there are 0777. So I have a folder that has permissions of 0 and 0777 at the same time. How can I resolve this and make sure the permissions are 0777?

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