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• Boot-up hangs unless I manually select the kernel in the bootloader

  - by The Photon

  In my stock Ubuntu install (forgot which critter its named for, about one year old), I am able to boot up normally only if I manually select the kernel in the bootloader (Grub). If I step away and it boots from the default, the system will hang with the word "Ubuntu" on a graphics screen and a few white/red blinking dots beneath it. umb@digdug:~$ uname -a Linux digdug 2.6.32-42-generic #95-Ubuntu SMP Wed Jul 25 15:57:54 UTC 2012 i686 GNU/Linux Synaptics says I have 'grub-pc' version 1.98-1ubuntu-13 installed. My grub.cfg does have default="0" which I would expect to make the default be the first kernel shown in the selection screen. The system is a laptop with an i7 processor, and I have had trouble with some kernels not being able to boot at all in the past, and power management is not working perfectly, but I have not had problems booting the latest kernel (2.6.32-42) if I select it manually in Grub. Any idea what is going on here and how can I fix it so that I can re-boot unattended?

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• Will you be at the PASS Summit?

  - by KKline

  Don't forget about the cool services from SQL Sentry for Summiteers, like the free area shuttle and the printed area maps ! Details are in a 5-part series by our CEO, Greg Gonzalez, at http://greg.blogs.sqlsentry.net/ . Are you coming to Charlotte next week for the PASS Summit ? Let's connect! When ever it's open, I'll be in the Exhibit Hall at the SQL Sentry booth unless I'm delivering a session or something of that nature. Here's the sessions I've got on the calendar - Tue, Oct 15: First-timers...(read more)

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• What the best way to wire up Entity Framework database context (model) to ViewModel in MVVM WPF?

  - by hal9k2

  As in the question above: What the best way to wire up Entity Framework database model (context) to viewModel in MVVM (WPF)? I am learning MVVM pattern in WPF, alot of examples shows how to implement model to viewModel, but models in that examples are just simple classes, I want to use MVVM together with entity framework model (base first approach). Whats the best way to wire model to viewModel. Thanks for answers. //ctor of ViewModel public ViewModel() { db = new PackageShipmentDBEntities(); // Entity Framework generated class ListaZBazy = new ObservableCollection<Pack>(db.Packs.Where(w => w.IsSent == false)); } This is my usual ctor of ViewModel, think there is a better way, I was reading about repository pattern, not sure if I can adapt this to WPF MVVM

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• How to include high resolution version of thumbnail

  - by neak

  I'm running a tube site that has a thumbnail for each post/video (running via Wordpress, 500k posts). When I first created the thumbnails they were a fairly large size, around 640px in width each and because of that I was seeing a lot of traffic from Google Images. After streamlining the site and resizing all of the thumbnails down to 170px rather than scaling them down I'm worried that Google isn't going to rank the images as high as they would be at a larger resolution, so is there a way to include the higher res versions and serve them to be indexed instead of the smaller ones?

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• How necessary is it to learn JavaScript before jQuery?

  - by benhowdle89

  In my opinion, when I looked at JavaScript, it looked like not my cup of tea. When I came across jQuery, I loved it. I sat and watched Nettuts+ 15 days of jQuery screencasts, 1 year later and now I'm fairly confident I wouldn't develop a website without including jQuery's library. I have never felt this has held me back but my question is, will this come back and bite me in the ass one day, the fact that I didn't have a solid JavaScript foundation before jumping feet first into one of its best (if not the best) frameworks? Did anyone else take this approach?

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• What does /dev/null mean in the shell?

  - by rishiag

  I've started learning bash scripting by using this guide: http://www.tldp.org/LDP/abs/abs-guide.pdf However I got stuck at the first script: cd /var/log cat /dev/null > messages cat /dev/null > wtmp echo "Log files cleaned up." What do lines 2 and 3 do in Ubuntu (I understand cat)? Is it only for other Linux distributions? After running this script as root, the output I get is Log files cleaned up. But /var/log still contains all the files.

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• The Internet from a 1990s Point of View [Video]

  - by Asian Angel

  Are you ready for a retro look at the Internet? Then prepare to journey back in time to 1995 with this video and its view of the early days of the Internet. From YouTube: Trine Gallegos hosts this segment shot in 1995 when the Internet was first becoming an icon. This is an interesting look back at how clunky the applications were. I don’t even think they were using a computer mouse yet. Internet – from the 1990′s point of view [via Fail Desk] How to Own Your Own Website (Even If You Can’t Build One) Pt 1 What’s the Difference Between Sleep and Hibernate in Windows? Screenshot Tour: XBMC 11 Eden Rocks Improved iOS Support, AirPlay, and Even a Custom XBMC OS

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• Google Places seo?

  - by sam

  Im familiar with seo and getting higher google listings but for allot of services google has recently been making there search results (were applicable) much more location orientated.. for instance searching for a "accountant in london" or "accountancy firm london" will through return the first half of page 1 as google places listings, then under about 6 of these you will get your normal search results so somone who used to rank #1 on page 1 now will rank effectily #7. What i was wandering is that i cant see any reasons as to why the company that rank high in the places results get there, often they are not high up in the search results. Is there a way to optimise on or offsite to rise up the google places listings in your city ?

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• What top companies look for in an Interview?

  - by Geek

  Basically I am looking for what is it that you goof up and you are out from the remaining process ? Are elimination rounds a fair way to judge a person ? Anyone can have a bad hour :-( Should you code the best possible or should you get the Algorithm right ? I generally first code a workable solution and then work on it till a level I think it looks beautiful to me. Is this a wrong approach ? Recently I had a telephonic interview in which I was asked to write a variation of Level Order traversal in 20 minutes. I could get the Algorithm and working code in 20 minutes but couldn't get the Exception handling and the coding convention right, after which I didn't hear back from them :-( All the other questions in the interview went very well this was the only thing which was 'not upto the mark'. Needless to say I like the company and will apply again but want to get it right the next time :-) Please share your experiences and valuable suggestions.

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• After executing a command in the terminal, I sometimes can't execute another

  - by jreed121

  First off sorry for the noob question, I'm sure it's been asked before but I have no idea how to phrase it eloquently... Sometimes when I open/run/execute (unsure of proper term) an application (?lol) from the terminal like geany ie: geany filename.php or maybe run a node.js script: node server.js The command will execute fine, but I'm then left without the ability to execute any other commands unless I open another terminal. my root@pcname:~$ is gone and when I try typing in something else and hitting Enter it just breaks to the next line. I've noticed that sometimes I can hit CTRL+D and it'll give me my prompt back (sorry is prompt even the right name for it?) So could someone please explain why this is happening and how I can get back to the prompt without opening another terminal. Thanks, and sorry again for my noobery.

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• Any way to set up a grid for a board game in cocos 2d?

  - by Scott

  My first idea was to create a 2d array for my columns and rows, but it seems like there should be a better, or possibly cleaner, way to achieve this. Each square on the grid is going to have a background image, probably a .png although I might just draw the images with a draw method. Basically, I want to be able to drag and drop images onto the individual grid squares. I've been searching for a solution and the closest thing I can find is the tiled map solution. That just seems like a little overkill for what I'm trying to accomplish. Also, I don't know if this helps but i need my grid to be 12 by 12 and take up the entire width of the iphone screen.

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• New Thinking for Supply Chain Analytics. PLM for Process. And Untangling Services Complexity.

  - by David Hope-Ross

  The first edition of the quarterly Oracle Information InDepth Value Chain and Procurement Transformation newsletter has just been published. It’s a solid round-up of news and analysis from the fast-moving world of global supply chains and supply management.  As the title of this post implies, the latest edition covers a wide array of great topics. But the story on supply chain analytics from Endeca is especially interesting. Without giving away the ending, it explores new ways of thinking about the value of information and how to exploit it for supply chain improvement. If you enjoy this edition, think about opting-in via the subscription link. It is an easy way to keep up with the latest and greatest.

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• CRM Goes to School, Supports Enrollment Growth

  - by Tony Berk

  At Post University in Waterbury, CT, the focus is on the student. Generally, the first interaction from a potential student is a lead, which can come from a variety of sources. Any delay in following up with the interested student (the lead) affects the conversion success rate, i.e., the likelihood of enrollment. By implementing Oracle CRM On Demand, Post University automated the admissions process so the admissions counselors are in direct contact with the students and eliminated many manual steps. The admissions and marketing teams, as well as the students, benefit from the new streamlined process. Up next, Post University, plans to increase the efficiency of the student retention processes with the expansion of Oracle CRM On Demand. Take a look at the video to learn more about Post University's Oracle CRM On Demand implementation: Congrats to Post University, and Apex IT, their implementation partner, on the successful implementation!

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• Ubuntu gone out of order - Wont install any packages. What do I do?

  - by Aborted

  Lately, I've been getting some strange behaviour from Ubuntu. First and the most important is that it wont install updates. It gives a package installation error and it simply wont work. Earlier I tried to install TeamViewer via the Software Center, but got the same package error. I also feel like the connection speed is going slower than it should - don't know if this one is relevant to this case. What's wrong with my installation? How do I fix these package installation errors?

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• Why was my Facebook game rejected with the note that "your app icon must not overlap with content in your cover image?"

  - by peterwilli

  My FB game just recently got rejected for two reasons. The first I fixed, but I just can't see to figure out what they mean by the second, and I was hoping someone else got the same issue and did know what they meant. The remaining error is: Cover Image Your app icon must not overlap with content in your cover image. Click on 'Web Preview' in the 'App Details' section to check for overlap prior to submitting your app. See more here. All I know is that the rejection has something to do with the cover image, not the icons or the screenshots. The web preview of my game looks like this now: Please let me know what to do to get approved.

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• Multiple domain names with pages linking to one website

  - by Mark Ravenhill

  Hello, I work for a company who have been redesigning their company website. I have been asked to register loads of domain names that contain the keywords that they want to use on the original site. Each of these domain names will contain a one page website with a destription of what the company offers and a link saying something along the lines of 'click here for more infmormation' which then takes you to the main site. The idea being the main site will then be recieving a lot of inbound links and hopefully rise in the google rankings, not to mention bring in more customers who have come to the site from all the other domain names who wouldn't have normally got to the website because it wasn't ranked on the first page. Is this a good idea or will Google see this as spam and penalise the main site for having loads of links to it from one page websites hosted on the same nameserver? Any advice would be greatly appreciated. Thanks, Mark.

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• Total Cloud Control for Systems - Webcast on April 12, 2012 (18:00 CET/5pm UK)

  - by Javier Puerta

  Total Cloud Control Keeps Getting BetterJoin Oracle Vice President of Systems Management Steve Wilson and a panel of Oracle executives to find out how your enterprise cloud can achieve 10x improved performance and 12x operational agility. Only Oracle Enterprise Manager Ops Center 12c allows you to: Accelerate mission-critical cloud deployment Unleash the power of Solaris 11, the first cloud OS Simplify Oracle engineered systems management You’ll also get a chance to have your questions answered by Oracle product experts and dive deeper into the technology by viewing our demos that trace the steps companies like yours take as they transition to a private cloud environment. Register today for this interactive keynote and panel discussion. Agenda 18:00 a.m. CET (5pm UK) Keynote: Total Cloud Control for Systems 18:45 a.m. CET (5:45 pm UK) Panel Discussion with Oracle Hardware, Software, and Support Executives 19:15 a.m. CET (6:15 UK) Demo Series: A Step-by-Step Journey to Enterprise Clouds

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• Google Bot trying to access my web app's sitemap

  - by geekrutherford

  Interesting find today...   I was perusing the event log on our web server today for any unexpected ASP.NET exceptions/errors. Found the following:   Exception information: Exception type: HttpException Exception message: Path '/builder/builder.sitemap' is forbidden. Request information: Request URL: https://www.bondwave.com:443/builder/builder.sitemap Request path: /builder/builder.sitemap User host address: 66.249.71.247 User: Is authenticated: False Authentication Type: Thread account name: NT AUTHORITY\NETWORK SERVICE   At first I thought this was maybe an attempt by a hacker to mess with the sitemap. Using a handy web site (www.network-tools.com) I did a lookup on the IP address and found it was a Google bot trying to crawl the application. In this case, I would expect an exception or 403 since the site requires authentication anyway.

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• Intellectual Property cost

  - by Colin Mackay

  If a piece of bespoke software was developed by a company and the Intellectual Property was retained by the company that wrote it, but now the client of the software company wants to get that source code (and its IP) how much should it cost them? How would you calculate a fair cost for the purchase of that source and IP? UPDATE: Just to add, the software in question is of no use to anyone else (for any legitimate purpose) as it ties in directly with the business processes of one company. It is not something that can be subsequently sub-licensed or installed outside the company in question. There are links of to third party services (but these were existing services that the bespoke software had to integrate with in the first place).

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• How to restart WiFi interface without rebooting (it drops connection)?

  - by Dima

  I boot into ubuntu and it connects to the Wifi network fine. After about 10-15min the DNS stop resolving any website and a couple of minutes later network-managers tells me that I'm disconnected and tries to reconnect constantly to my router and fails to do it. Upon Ubuntu restart everything works fine for the first 10-15min again. When I boot into Mac OS X everything is fine with the same connection! How do I restart wifi interface? sudo ifdow wlan0 just tells me that wlan0 is not configured and wlan0 doesn't appear in /etc/network/interfaces either, which I find strange.... (unless network-manager is doing it behind my back).

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• Configuration of the network manager via DBus: how to set the ad hoc mode

  - by Andrea

  I have an hard nut to crack: a nice bottle of italian Chianti wine to the solver! :) To automatically configure Wifi, I first have to kill the network manager and than activate the wifi via the commandline: I do this all automatically in my application and works great. However... it is not the right way to do this. As the user has no network gui anymore to configure some other network access. A much better and transparent way would be to configure wifi directly via network manager over the DBus interface. I was able to configure it, but I wasn't able to set it to ad hoc mode... Searching the web for a while: a lot about configuration in general but nothing related to ad hoc mode. I think the only way to do figure that out is to look into the source code of the network manager...maybe someone already did it and he can answer.

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• Powershell Run-As Script

  - by marc dekeyser

  Disclaimer: This script is not of my own making. I found it on a share somewhere and it is so handy I started using in a bunch of scripts. To the writer: If you're out there, somewhere, when you see this, thank you! Check if script is running as Adminstrator and if not use RunAs    # Use Check Switch to check if admin        param([Switch]$Check)        $IsAdmin = ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()`        ).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")            if ($Check) { return $IsAdmin }        if ($MyInvocation.ScriptName -ne "")    {         if (-not $IsAdmin)         {             try            {                 $arg = "-file `"$($MyInvocation.ScriptName)`""                Start-Process "$psHome\powershell.exe" -Verb Runas -ArgumentList $arg -ErrorAction 'stop'             }            catch            {                Write-Warning "Error - Failed to restart script with runas"                 break                          }            exit # Quit this session of powershell        }     }     else     {         Write-Warning "Error - Script must be saved as a .ps1 file first"         break     } write-host "Script Running As Administrator" -foregroundcolor redWrite-host ""

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• Desktop interface crashes after software updates

  - by N.C. Weber

  Recently, after installing Ubuntu software updates on the evening of December 7th, 2012, my desktop interface crashes regularly leaving me with a command line screen with a long string of automated commands showing (I assume what goes on behind the pretty desktop). At first, I thought it was only crashing whenever I played DirectX games in WINE, but now it crashes if I open the native Firefox browser or if it's doing nothing at all but sitting there. Apport attempts to report the bugs after restart, but often they crash as well. I've done a SMART check on the hard drive, and everything report OK. No read errors, no bad sectors. I am using an Acer Extensa 4620Z Memory: 2.0 GiB Processor: Intel Pentium Dual CPU T2370 @ 1.73GHz x 2 GraphicsL: Intel 965GM x86/MMX/SSE2 OS: Ubuntu 12.10 32-bit Disk: 116.0 GB with 33.4 GB Available

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• Reversi/Othello early-game evaluation function

  - by Vladislav Il'ushin

  I've written my own Reversi player, based on the MiniMax algorithm, with Alpha-Beta pruning, but in the first 10 moves my evaluation function is too slow. I need a good early-game evaluation function. I'm trying to do it with this matrix (corresponding to the board) which determines how favourable that square is to have: { 30, -25, 10, 5, 5, 10, -25, 30,}, {-25, -25, 1, 1, 1, 1, -25, -25,}, { 10, 1, 5, 2, 2, 5, 1, 10,}, { 5, 1, 2, 1, 1, 2, 1, 5,}, { 5, 1, 2, 1, 1, 2, 1, 5,}, { 10, 1, 5, 2, 2, 5, 1, 10,}, {-25, -25, 1, 1, 1, 1, -25, -25,}, { 30, -25, 10, 5, 5, 10, -25, 30,},}; But it doesn't work well. Have you even written an early-game evaluation function for Reversi?

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• Database for survey

  - by zfm

  One of my job now is to design a database for a survey. Let's say we have a series of questions (web-based), in which one page contains one question. Not every person will be given the same questions, those are based on their previous answers and also randomness. I would like to know whether it is better to have database like this user question answer userX question1 answer1A userX question2 answer2C userX question5 answer5F userY question1 answer1B userY question3 answer3B userY question6 answer6D ... or user q1 q2 q3 q4 q5 q6 userX 1A 2C null null 5F null userY 1B null 3B null null 6D ... My idea here is, using the second approach seems better, however I would like to know whether updating the table is (much) slower than inserting a new row? Also with the first approach, I can omit having some null answers. The total questions given are fix, the client wont add any more question later on. So my question is, what will you do if you were me?

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