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  • How to Unlock Applications folder

    - by Mark Coleman
    This question relates to Ubuntu 12.04 LTS. I wish to move a folder from the desktop into the applications folder at home/usr/share/applications. When I attempt to drag the folder from the desktop to the applications folder, I get the following message: "Error moving file: Permission denied" Permission or no permission, I want to move a folder from the desktop to the above said applications folder. How do I authenticate so I can make this move? There is no opportunity to authenticate when I get the error message, only "Skip" or "Cancel". I don't want to skip or cancel, I want to authenticate and move the folder. How do I do this? Thank you!

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  • After removing Ubuntu Builder there is still folder in home directory. Why? How to remove it?

    - by user132989
    I removed Ubuntu Builder using Synaptic with option Mark for Complete Removal. I thought that gonna delete folder (made by Ubuntu Builder) in home dir, but it's not. AFAIK Mark for Complete Removal is same as Purging, and that should delete all files made by program. Am I wrong? Is it safe to delete it with sudo rm -r /home/ubuntu-builder because it is in home dir? And last question. Why is it made folder in /home instead in ~/ dir?

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  • There's Not an App for That (Yet)

    - by Mark Hesse
    With an earlier-than-normal departure this morning to avoid the stalemate known as traffic congestion, I suddenly realized what I had failed to grab on my way out the door...  my company ID badge.  Unfortunately, at the time of my epiphany, I was far enough into commuter no-man's land where turning back would completely negate my early departure and increase my overall drive time exponentially.  Not being one to retrace my steps, I decided to press on. Upon arrival at the office and with an hour to go before a security guard would be on duty, I started thinking about the number of times I had forgotten my ID vs. the number of times I had forgotten my phone.  While rare on both accounts, my ID was most likely the missing artifact. I then wondered why there isn't an app for my smartphone that allows me to verify my credentials with my employer and then, provided with a secure token for the day, have the ability to access my building's card entry system.  On many levels, this seems much more secure than an ID card which can be lost, stolen or even forged and then used simply by tailgating into and around buildings at facilities where card scanning can generally be avoided.   As it turns out, another building on the campus has 24 x 7 guard coverage, so I was able to gain access in a relatively short time and secure a temporary ID badge.  Once inside and online, a quick internet search on the subject of smartphone badge access shows that efforts are underway to do exactly what I was thinking needed to be done. Having not spent any time studying about the technology, I discovered that it relies on Near Field Communications (NFC) enabled smartphones (of which, mine does not provide).  The only other option would require modifications to the security infrastructure to support alternative authentication technologies, such as barcode readers, which would be extremely costly to implement. For now, my best option is to put my corporate ID under my car keys... 

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  • Can't connect to or search wifi

    - by Mark
    I just installed the latest version of Ubuntu, I think it was 13. Something. Anyway I got it running and now I've been trying to connect to my wifi. No matter where I go I don't see an option for wifi. I looked on the computer and found some commands to use in terminal to run a scan for wifi networks but all of them returned the error "interface doesn't support scanning" if anyone could help that would be great...I can't do anything without wifi! Also I'm new to this so if you could give step by step directions that would help a lot. Thanks!

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  • Getting Started with 12.04 LTS Problems

    - by mark
    Okay previously I used ubuntu 10.04 in Desktops and Loved it! I bought a newer Toshiba Satellite with an i7 CPU, 8GB Ram, 1TB HD, first thing I tried to do was install Ubuntu 9 on it then I found out it was no longer Supported. (I gave my 10.04 disk away) So I tried installing Windows 7 and experienced SO MANY problems, I am going back to try 12.04. Starting all over again. After installing 12.04 Wireless was Detected yet said it was Disabled by a Hardware Switch. Went read through the Message Boards found Solution which was Sudo rf Kill All. Okay all excited I would finally get my Ubuntu to finally work I rushed back to my laptop from the internet cafe, and went looking for the TERMINAL input on my Ubuntu 12.04, and I cannot find the Terminal. If I can't find the TERMINAL how Can I enter any Sudo Stuff? So I guess the first question is Where is the Terminal Located in 12.04? Thank you.

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  • Working for a company vs starting my own? [closed]

    - by Mark
    I need some advice, I am considering going to grad school for CS. I have a few big projects I came up with on my own that I am extremely motivated to work on and complete and try to turn it into a career. I am currently completing an internship working for a big company, decent pay, 9-5 hours in an office. I feel like working for the same company many people would enjoy and like, is extremely boring in my opinion and procedural at times and kills my motivation. As a result, I am kind of unsure if I should continue to get my CS M.S. degree and start working for a big company? What I would enjoy doing most is working for myself and developing my own project, but I am not sure if I will be able to finanically support myself doing that and I do not want to miss out on a big opportuinities/ job offers to work for a company. With that being said, I will never know if my project will ever succeed if I don't give it %110 of my time and dedication, so if I decide to go that route and work on my own project, I will have to set everything else aside, If anyone could give me any advice on what they think about my situation?

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  • Data transfer from 12.04 to 14.04 using same hostname?

    - by Mark
    I've been using my 12.04 server for a year and a half. I'd like to install 14.04 on a new drive and transfer all my data over once that is complete. I have 720GB of files to to deal with. 12.04 was setup using LVM. I'd like to use the same hostname. I'd prefer a clean install as opposed to an upgrade. What would be the best way go about this? Is it as simple as booting to the new install and mounting the 12.04 VG? I suppose I'd have to manually set up LVM on 14.04 if I want to use the same hostname.

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  • I have a new file type that I would like to handle in gnome how to get file properties?

    - by Mark
    I have a new file type that I would like to handle in gnome. Establishing a new mime type, a new thumbnailer and a new application to display the file type is done. But I need a new tab on the file properties page. This tab is analogous to the tabs for exif information for jpg files or for encoding information for video codecs, that says how long the video is. The files concerned are embroidery files and the file properties needed to be displayed are things like phisical dimentions of the design, how much thread will be used and how many colours. My belief is that with current gnome 3 this is not possible, am I right? Or should I take a wider view that in Ubuntu, anything is possible, just may be a bit difficult?

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  • Desktop not showing after playing with compiz

    - by Mark
    Having successfully installed Ubuntu 11.04 I decided to look into improving look and feel of the unity desktop. I could find no option to introduce any nice effects with the standard install, but a google session suggested Compiz would do the job. I installed this and selected the "Wobbly windows" option and this worked fine. After a while I thought I'd try some of the other available effects (can't remember which but may have been cube desktop) but this resulted in no windows showing at all. I now have just blank wall paper with no icons or menus. There are no error messages and right clicking the desktop produces a small context menu but nothing else. Rebooting brings me back to a blank desktop with just wallpaper. I do not know where to start.

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  • Where to generate data in an Entity-Component System?

    - by Mark Mandel
    So I'm making a small game where I generate 2D landscape using perlin noise when the game first loads. I've got it working in a OO way, but want to move over to an ES architecure, and I'm just struggling to work out the right place for the code that does the generation to go? In OO world, I have a World object which gets passes a coordinate value that is used as the seed for the perlin noise, and generates all the points for the land mass when the world is created. I'm thinking I need a World component with a coordinate field on it - that's an easy part. From there - is it right for a component to generate data when it's first initialised (or is that too OO?)? Or should a System be doing that instead, when the game first starts? Or... some other solution I'm not aware of? Thanks in advance for any guidance.

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  • i cant download things from software center

    - by mark
    i keep getting this error when i want to get an app from software crnter File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 972, in simulate trans.unauthenticated = self._simulate_helper(trans) File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 1096, in _simulate_helper return depends, self._cache.required_download, \ File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 235, in required_download pm.get_archives(fetcher, self._list, self._records) SystemError: E:I wasn't able to locate a file for the sun-java6-jre package. This might mean you need to manually fix this package. any one help please!!!!!!!! how do i manually fix!

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  • Boot screen appears to be asking a question but garbled

    - by mark kaylor
    I'm running 12.04 Precise Pangolin, Kernel 3.2.0-32 w/ GNOME 3.4.2 I perused the prior questions/answers and did not find exactly the same problem, I am concerned that AUTOFSCK, Grub or some other critical event that needs some attention ? Any idea on how to get my video clean during boot? Once I get past the boot screen the video driver/card, etc is performing beautifully ! Here is a photo of the boot screen; nVidia GeForce CARD INFORMATION (lspci -vvv) 01:00.0 VGA compatible controller: NVIDIA Corporation G72 [GeForce 7300 LE] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Gateway 2000 Device 3a07 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- SERR- [disabled] Capabilities: Kernel driver in use: nvidia Kernel modules: nvidia_173, nouveau, nvidiafb Thanks for your help/advice.

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  • What's so useful about closures (in JS)?

    - by Mark Bubel
    In my quest to understand closures in the context of JS, I find myself asking why do you even need to use closures? What's so great about having an inner function be able to access the parent function's variables even after the parent function returns? I'm not even sure I asked that question correctly because I don't understand how to use them. Can someone give a real world example in JS where a closure is more beneficial vs. the alternative, whatever that may be?

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  • For nodejs what are best design practices for native modules which share dependencies?

    - by Mark Essel
    Hypothetical situation, I have 3 node modules all native, A, B, and C.  A is a utilities module which exposes several functions to javascript through the node interface, in addition it declares/defines a rich set of native structures and functions B is a module which is dependent on data structures and source in A, it exposes some functions to javascript, in addition it declares/defines native structures and functions C is a module which is dependent on data structures and source in A & B, it exploses some functions to javascript, in addition it declares/defines native structures and functions So far when setting up these modules I have a preinstall script to install other dependent includes, but in order to access all of another modules source what is the best way to link to it's share library object (*.node) ? Is there an alternative best practice for native modules (such as installing all source from other modules before building that single module)? Reply

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  • Second monitor stopped working

    - by Mark D
    After setting up 11.10 today, I seem to be having problems with my dual monitor set up. It worked without issues in Mint but today after I switched to 11.10 only one monitor seems to function. This seems a little odd to me. During setup both monitors functioned without issue, although they were mirroring each other both monitors but as soon as it booted into Unity my secondary monitor stopped working. I checked under settings-display and the second monitor doesn't seem to even be detected. On the off chance it had something to do with drivers, I upgraded the proprietary drivers to the latest version with zero success. If anyone has any ideas, I'd love to hear them.

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  • why doesnt ubuntu 13.04 prompt me for a password after suspend?

    - by mark
    I am on 13.04 and waking from suspend takes me straight to desktop without a password prompt even though it is set to ask for a password in the brightness and lock settings. Also I recently tried to lock my computer,going to the power menu in the top right corner and hitting lock,it does not do anything,I am still on the desktop..(just tried crtl alt l to lock,it does work) but not the way i did it though,but that is not important to me ,I need the password prompt after suspend.. Password prompts works only when booted from a shutdown...

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  • Version Not Final, Does not represent actual game footage?

    - by thinly veiled question mark
    Just curious about this. Frequently, a lot of gameplay videos from big studios have small subtitled text at the lower part of the screen, reading something like: Pre-Alpha Gameplay -- Footage not Final Game Footage not Final Pre-Alpha, Game here is not final Is there some sort of reason they do this? Is there some sort of legal ramification that they need to go through by adding this? I have especially seen some gameplay vids whose titles are "Alpha x.x.x", yet still, in the video itself, it always something like "footage not final, game may change".

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  • 12.04 Login gone wrong

    - by Mark H
    I seem to have a fault in the login procedure somewhere. When I boooted up I found that if I selected Guest I could use the computer. If I selected my administrator account I was taken straight to the terminal. So I opened a guest session, went to user settings, and unlocked my admin account (it accepted the password!), and amended it to show "password None" and automatic login. I now find that when I boot up I am taken straight to the terminal - if I exit terminal I get the login screen - if I select the administrator login I go back to terminal - if i select guest I can use the PC, and if I select mu normal user account I can use the PC. So I cannot login as an administrator - so admin functions such as update are no longer accessible. Sorry to be so long winde but I am stuck. Can anyone suggest anything - I am a beginner with this

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  • AWS Amazon EC2 - password-less SSH login for non-root users using PEM keypairs

    - by Mark White
    We've got a couple of clusters running on AWS (HAProxy/Solr, PGPool/PostgreSQL) and we've setup scripts to allow new slave instances to be auto-included into the clusters by updating their IPs to config files held on S3, then SSHing to the master instance to kick them to download the revised config and restart the service. It's all working nicely, but in testing we're using our master pem for SSH which means it needs to be stored on an instance. Not good. I want a non-root user that can use an AWS keypair who will have sudo access to run the download-config-and-restart scripts, but nothing else. rbash seems to be the way to go, but I understand this can be insecure unless setup correctly. So what security holes are there in this approach: New AWS keypair created for user.pem (not really called 'user') New user on instances: user Public key for user is in ~user/.ssh/authorized_keys (taken by creating new instance with user.pem, and copying it from /root/.ssh/authorized_keys) Private key for user is in ~user/.ssh/user.pem 'user' has login shell of /home/user/bin/rbash ~user/bin/ contains symbolic links to /bin/rbash and /usr/bin/sudo /etc/sudoers has entry "user ALL=(root) NOPASSWD: ~user/.bashrc sets PATH to /home/user/bin/ only ~user/.inputrc has 'set disable-completion on' to prevent double tabbing from 'sudo /' to find paths. ~user/ -R is owned by root with read-only access to user, except for ~user/.ssh which has write access for user (for writing known_hosts), and ~user/bin/* which are +x Inter-instance communication uses 'ssh -o StrictHostKeyChecking=no -i ~user/.ssh/user.pem user@ sudo ' Any thoughts would be welcome. Mark...

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  • WPF Databound RadioButton ListBox

    - by Mark
    I am having problems getting a databound radiobutton listbox in WPF to respond to user input and reflect changes to the data it's bound to (i.e., to making changes in the code). The user input side works fine (i.e., I can select a radiobutton and the list behaves as expected). But every attempt to change the selection in code fails. Silently (i.e., no exception). Here's the relevant section of the XAML (I think): <Setter Property="ItemContainerStyle"> <Setter.Value> <Style TargetType="{x:Type ListBoxItem}" > <Setter Property="Margin" Value="2" /> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type ListBoxItem}"> <Border Name="theBorder" Background="Transparent"> <RadioButton Focusable="False" IsHitTestVisible="False" IsChecked="{Binding Path=IsSelected, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}" > <ContentPresenter /> </RadioButton> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> </Setter.Value> I bind the listbox to a List of SchoolInfo objects. SchoolInfo contains a property called IsSelected: public bool IsSelected { get { return isSelected; } set { if( value != isSelected ) { isSelected = value; this.OnPropertyChanged("IsSelected"); } } } The OnPropertyChanged() stuff was something I put in during my experimentation. It doesn't solve the problem. Things like the following fail: ((SchoolInfo) lbxSchool.Items[1]).IsSelected = true; lbxSchool.SelectedIndex = 1; They fail silently -- no exception is thrown, but the UI doesn't show the item being selected. Mark

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  • "If not exists" fails on SQL CE

    - by Mark Evans
    Hi I've got an unexpected problem. I'm making a script to update the schema on a SQL CE database. This won't run: if not exists ( Select column_name from information_schema.columns where column_name = 'TempTestField' and table_name = 'Inventory_Master_File' ) Alter table Inventory_Master_File add TempTestField nvarchar(10) null I think this is because I'm using stuff that isn't supported in SQL CE. Anyone know how to do this? I've tried rearranging the script and can't get anything to work. I tried "alter table ... where not exists ...". Note that the "select" part runs fine and also the "alter" part. The problem is "if not exists". I know there are some other postings regarding problems like this using SQL CE but I couldn't find an answer to this particular problem. Cheers Mark UPDATE: I've spent over an hour looking for a solution. I've found many postings asking for help with similar problems but I've still got no idea how to fix it. I really don't want to do this in C# code. I need to do this in a SQL script. I can't believe something this basic is causing so much difficulty :(

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  • Silverlight ComboBox Attached Behavior

    - by Mark Cooper
    I am trying to create an attached behavior that can be applied to a Silverlight ComboBox. My behavior is this: using System.Windows.Controls; using System.Windows; using System.Windows.Controls.Primitives; namespace AttachedBehaviours { public class ConfirmChangeBehaviour { public static bool GetConfirmChange(Selector cmb) { return (bool)cmb.GetValue(ConfirmChangeProperty); } public static void SetConfirmChange(Selector cmb, bool value) { cmb.SetValue(ConfirmChangeProperty, value); } public static readonly DependencyProperty ConfirmChangeProperty = DependencyProperty.RegisterAttached("ConfirmChange", typeof(bool), typeof(Selector), new PropertyMetadata(true, ConfirmChangeChanged)); public static void ConfirmChangeChanged(DependencyObject d, DependencyPropertyChangedEventArgs args) { Selector instance = d as Selector; if (args.NewValue is bool == false) return; if ((bool)args.NewValue) instance.SelectionChanged += OnSelectorSelectionChanged; else instance.SelectionChanged -= OnSelectorSelectionChanged; } static void OnSelectorSelectionChanged(object sender, RoutedEventArgs e) { Selector item = e.OriginalSource as Selector; MessageBox.Show("Unsaved changes. Are you sure you want to change teams?"); } } } This is used in XAML as this: <UserControl x:Class="AttachedBehaviours.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:this="clr-namespace:AttachedBehaviours" mc:Ignorable="d"> <Grid x:Name="LayoutRoot"> <StackPanel> <ComboBox ItemsSource="{Binding Teams}" this:ConfirmChangeBehaviour.ConfirmChange="true" > </ComboBox> </StackPanel> </Grid> </UserControl> I am getting an error: Unknown attribute ConfirmChangeBehaviour.ConfirmChange on element ComboBox. [Line: 13 Position: 65] Intellisense is picking up the behavior, why is this failing at runtime? Thanks, Mark EDIT: Register() changed to RegisterAttached(). Same error appears.

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  • Problem Rendering SIFR with revision 436 on IE6 and IE7

    - by Mark
    Hi, I seem to have a problem with SIFR3. I'm using version 436 and from all my testing it appears to be a problem associated with IE6 and IE7 as I cannot replicate the issue in Firefox, Chrome, Safari for Windows, or even IE8. The problem is occurring on my company's website and can be seen here: http://www.wyldeia.co.uk/blog.php When you first go to the page in IE6 or IE7 it appears to render fine. However if you click away onto another page and then click the back button in the browser, all of the text is replaced by an error saying "Rendered with sIFR3 revision 436". If you refresh the page, then the problem goes away, that is until you browse away and come back again. I've tried this on two separate machines both running IE7.0.6000.16809, and a further separate machine running IE6 which I then upgraded to IE8. I thought initially it might be Flash player related but on upgrading from version 9 to 10 of the flash player the problem remains. Further digging around indicated that the error can be caused by having a corrupted flash font file, or having one present that was generated with a previous revision of SIFR3. However I have exported the flash font file using the supplied fla with revision 436 but the problem remains. Usually I like to track the answer down myself but as it is I'm at a bit of a loss on this one so if anyone has any ideas what might be happening here then I would be very grateful! Regards, Mark

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  • UISplitView show different views in the detail pane

    - by Mark
    How can I change the view in the Details pane of the UISplitView so that its a completely different view? Im having a fair amount of trouble understanding how its all wired up and where things should go at the moment, could someone please enlighten me? What I would love to be able to do is to show a specific view based on what the user has selected in the UITableView on the left pane (this view could be an image, or a more complex view of a news article, etc... many different options) then when the user turns the iPad into portrait view, that view that was in the details pane changes to be its equivalent portrait view version. Does this make sense? How on earth would I do that? Just to brainstorm, here is what I was thinking: Create a Split View project Create 2 NIBs for each view: (with accompanying view controllers???) * PortraitNewsStory * LandscapeNewsStory * PortraitImageBrowser * LandscapeImageBrowser * etc... Create a UISplitView control using XCode Capture when a user rotates the iPad (should this be done in the RootViewController.m ?) Change the view of the DetailViewController how should I do this? profit??? Thanks Mark

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  • RichFaces demo dataTableScrollerBean.java location

    - by Mark Lewis
    Hello, I've noticed from here that the contents is only the header Revision 16532: /tags/3.3.2.SR1/samples/richfaces-demo/src/main/java/org/richfaces/demo/dataTableScroller and no listing of the dataTableScrollerBean.java file which the Edit Table/Modal Panel demo JSF code refers to. Where can I access it? I'd like to try the demo out on my machine. I've posted to RichFaces but SO tends to respond faster. Thanks Mark EDIT I've found some code (here) on a forum fortunately which is as close as I've come so far. Looks like it was written by one of the RichFaces authors, but when I included it, Eclipse is complaining about the Facet object which together with another forum and these import javax.ejb.Stateful; import javax.ejb.Stateless; suggest I may be missing j2ee.jar. But I'm running this out of Tomcat which is not an ejb container. I didn't think this RichFaces component required JBoss or equivalent so I must be doing something wrong. All I'm trying to do is try out an Edit Table! Thanks

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