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• Stuck on busybox after a fresh install

  - by user54841

  I installed 11.10 and was getting stuck on Busybox unless I type exit. After grabbing the latest updates it then didn't get stuck on busybox but instead on a black screen of nothingness. I've now reformatted and started again using the exit technique for the time being. I had a search here before posting and none of the answers gave much insight, other than it 'could be a gfx card driver issue'. I'm using new hardware that has no issues with Mint, Win7 or WinXp. BUT note, I'm not dual booting, its a complete fresh install formatting the entire drive. Any help is appreciated as I'd really like to get stuck into Ubuntu. Thanks in advance. -Luke

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• How to prevent a 404 Error when creating a subdomain and using www to access it?

  - by Chris

  I have installed a multi-site installation of WordPress onto my domain. I then added the necessary code to the wp-config.php file and .htaccess as instructed by WordPress. I also installed a plugin called Quick Page/Post Redirect Plugin which allowed me to place a 301 redirect onto the main domain as I only want to use the sub domain and not the main domain. Then I also added the following line of code to the wp-config.php file to redirect the main domain define( 'NOBLOGREDIRECT', 'URL Redirect Address' ); The site works fine with a redirect on the main domain and my subdomain runs fine when you type in subdomain.example.com or http://subdomain.example.com. However when I enter www.subdomain.example.com or http://www.subdomain.example.com the following error message is returned: Not Found The requested URL / was not found on this server. Apache/2.4.9 (Unix) Server at www.subdomain.domain.com Port 80 Any help with this would be much appreciated.

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• Develop a small size software using C only for copying same data to multiple external drives simultaneously [on hold]

  - by VSP

  I want to develop a software that can copy the same data to multiple external drives, simultaneously. For example, consider a file Movie and I have 3 external drives to copy it to, and I want to copy Movie to all these 3 drives(these drives can be flash storage or external hard-disk or pen-drive etc. but have one thing in common, i.e. they are all external drives) at the same time, means when I right-click on Movie there has to be 1 option saying Copy to All Drives. It's a sort of mini-project and I want to use C language only. For starting I would like it to work only on Windows OS. What are the requirements of developing this software (not the system requirements but what will I need to develop such a software, like editor,compiler etc.)? I know this type of software must have already been developed but I want to use C language and C Language only. So, is it possible to develop such a software?

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• 2D Physics in a networked game (iOS)?

  - by Pedro

  I am researching the possibilities for a new iOS game. It's going to be a run-n-gun type platformer, and I'm looking into the possibility of co-op multiplayer. The game itself wouldn't be very physics intensive, there will most likely be 20-30 physics bodies at any given time. For the multiplayer, I think I would have one player "hosting" and up to 3 other connecting via the Internet. Here's my first question, are there any 2D physics engines that work over a network(preferably open source)? My second question, Does anyone have any thoughts on using a non-networked engine (like Box2D or Chipmunk) and adding the networking component? Since there would not be very much information sent, do you think it would cause a lot of lag?

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• What is the best database design for managing historical information? [closed]

  - by Emmad Kareem

  Say you have a Person table with columns such as: ID, FirstName, LastName, BirthCountry, ...etc. And you want to keep track of changes on such a table. For example, the user may want to see previous names of a person or previous addresses, etc. The normalized way is to keep names in separate table, addresses in a separate table,...etc. and the main person table will contain only the information that you are not interested in monitoring changes for (such information will be updated in place). The problem I see here, aside form the coding hassle due to the extensive number of joins required in a real-life situation, is that I have never seen this type of design in any real application (maybe because most did not provide this feature!). So, is there a better way to design this? Thanks.

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• HP 530 Wireless problem. Bad communication with access point

  - by foxy

  I installed Ubuntu 11.10 on HP 530 and to make Wireless work installed STA driver from jockey (obviously proprietary) and, since it didn't work also installed their driver from HP website via ndiswrapper. After this (and a reboot) I see the WiFi indicator glowing, like it should be, and I am able to find local access points. But when I try to connect to mine personal one with WPA 2 security (with password) it hangs at authentification (I'm using wicd to manage wifi), and after a minute or so (I guess timeout of request happens) it says I have a wrong password (it is 100% correct). What might be the problem here? Yesterday I was able to connect to access point by changing type of encryption from passphrase to preshared key but didn't have internet access. Now, after reboot, I can't connect there again.

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• need example sql transaction procedures for sales tracking or financial database [closed]

  - by fa1c0n3r

  hi, i am making a database for an accounting/sales type system similar to a car sales database and would like to make some transactions for the following real world actions salesman creates new product shipped onto floor (itempk, car make, year, price).   salesman changes price.   salesman creates sale entry for product sold (salespk, itemforeignkey, price sold, salesman).   salesman cancels item for removed product.   salesman cancels sale for cancelled sale    the examples i have found online are too generic...like this is a transaction... i would like something resembling what i am trying to do to understand it.  anybody have some good similar or related sql examples i can look at to design these? do people use transactions for sales databases?  or if you have done this kind of sql transaction before could you make an outline for how these could be made?  thanks  my thread so far on stack overflow... http://stackoverflow.com/q/4975484/613799

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• Xfce session will not login from login prompt. Why?

  - by hydroparadise

  Well, not sure how I did it, but for some reason I am unable to get past the login screen on Xfce. What's odd is that I had set the machine up (from install) to login automatically. Then when I finish rebooting after installing sudo apt-get install openssh-server and sudo apt-get install vnc4server all the sudden I am getting prompted for my password. I proceed to type my password (successfully might I add) to login, the screen goes black for a second, then brings me right back to the same password prompt. I am able ssh in(now), but I get no love from workstation login. Maybe vnc4server is the culprit? What did I do? And can I fix it? EDIT: The guest account, however will let me login no problem. What gives? I have a sneaking feeling that this could be permission issue.

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• Make Ubuntu fonts sharper

  - by Tibo

  In the last two months I'm trying to do a complete transition from Windows 7 to Ubuntu. There is something that is really missing. I really like the sharp and think fonts in windows (I'm not talking about the font type - 'Arial','Consolas' atc.). I think that the Ubuntu fonts looks better, but after several hours I feel like my eyes are really tired. BTW - I have the same problem with the Apple computer at work too (MacBook pro). Is it a theme issue? Can i change it by configuration? Can you recommend a solution?

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• Silverlight Release History : Q1 2010 SP2 (version 2010.1.0603)

  Q1 2010 SP2 Changes: RadGrid What's New: Added ItemTemplate property to GridViewComboBoxColumn. Added: ColumnWidthChanged and ColumnWidthChanging events. Added: GridViewCsvExportOptions type to control exporting in CSV format. ElementExporting and ElementExported events added to GridViewDataControl. Changed the namespace of LookupElement from Telerik.Windows.Controls to Telerik.Windows.Controls.Gridview. What's Fixed: Fixing problem with ShowInsertRow when clicked numerous times resulting...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• How do you handle domain logic that spans multiple model objects in an ORM?

  - by duality_

  So I know that business logic should be placed in the model. But using an ORM it is not as clear where I should place code that handles multiple objects. E.g. let's say we have a Customer model which has a type of either sporty or posh and we wanted to customer.add_bonus() to every posh customer. Where would we do this? Do we create a new class to handle all this? If yes, where do we put it (alongside all the other model classes, but not subclass it from the ORM?)? I'm currently using django framework in python, so specific suggestions are even more wanted.

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• how to design transparent screen in libgdx

  - by ved

  this question is for LibGdx geeks. I want to make transparent screen in my game. For example, when level completes I want a new transparent screen pop up and show player's high score, buttons to navigate on next level etc like in angry birds kind of screen. This type of screen can also use, when user click on pause button, to show pause screen. Please guide me to design this kind of screen. Or if I am going wrong to make transparent screens for this kind of situation. Please guide me for better one.

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• How To Create Your Own Custom Google Search Engine

  - by Chris Hoffman

  Have you ever wanted to create a custom Google search engine that searches only specific websites? You can easily do this with Google’s Custom Search Engine tool. You can bookmark your search engine and even share it with other people. This trick works similarly to Google’s site: operator, but you won’t have to type the operator every time you search. It’s particularly useful if you want to search a large number of sites at once. How To Create a Customized Windows 7 Installation Disc With Integrated Updates How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using?

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• Cron won't execute if am not logged in

  - by JonaMX

  I have a cron that makes a backup of MySql, if I execute on shell it works pretty well even if I'm logged when cron supposed to execute works fine, but if I'm not logged just won't execute, I don't know what could happened, any suggestion ? Crontab 00 04 * * * /home/administrador/scripts/respaldo.sh respaldo.sh #!/bin/sh mysql -uroot -p[PASS] ccs < /home/administrador/scripts/limpia.sql mysqldump -uroot -p[PASS] --routines ccs > /home/administrador/backups/backup_$(date +%Y%m%d).sql mysqlcheck -uroot -p[PASS] --auto-repair --optimize ccs cd /home/administrador/backups/ tar -zcf backup_$(date +%Y%m%d).tgz backup_$(date +%Y%m%d).sql rm backup_$(date +%Y%m%d).sql find -name '*.tgz' -type f -mtime +90 -exec rm -f {} \; respaldo.sh has execute permission SOLUTION The problema was that the /home/adminsitrador directory was an encrypted folder so when the user is logged in the folder it's decrypted and everything works but when the user it's logged off the folder it's encrypted and the cron can't access to that path, so I've changed the cron script and backup to another unencrypted folder and to root user and now everything it's working pretty well, thanks to all for your help !

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• ipod not mounting

  - by rls

  Tried to connect my iPod, but got this message: Error mounting: mount: wrong fs type, bad option, bad superblock on /dev/sdb2, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so Have seen links to this here, but beeing rather green, I don't understand much. https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/734883 What do I do now? The dmesg|tail says [ 2819.709437] sd 6:0:0:0: [sdb] 3901376 4096-byte logical blocks: (15.9 GB/14.8 GiB) [ 2819.710161] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 2819.735294] sdb: [mac] sdb1 sdb2 [ 2819.738060] sd 6:0:0:0: [sdb] 3901376 4096-byte logical blocks: (15.9 GB/14.8 GiB) [ 2819.738671] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 2819.738688] sd 6:0:0:0: [sdb] Attached SCSI removable disk [ 2820.420130] sd 6:0:0:0: [sdb] Bad block number requested [ 2820.420167] hfs: unable to find HFS+ superblock [ 2820.612140] sd 6:0:0:0: [sdb] Bad block number requested [ 2820.612191] hfs: unable to find HFS+ superblock

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• Public versus private inheritance when some of the parent's methods need to be exposed?

  - by Vorac

  Public inheritance means that all fields from the base class retain their declared visibility, while private means that they are forced to 'private' within the derived class's scope. What should be done if some of the parent's members (say, methods) need to be publicly exposed? I can think of two solution. Public inheritance somewhat breaks encapsulation. Furthermore, when you need to find out where is the method foo() defined, one needs to look at a chain of base classes. Private inheritance solves these problems, but introduces burden to write wrappers (more text). Which might be a good thing in the line of verbosity, but makes changes of interfaces incredibly cumbersome. What considerations am I missing? What constraints on the type of project are important? How to choose between the two (I am not even mentioning 'protected')? Note that I am targeting non-virtual methods. There isn't such a discussion for virtual methods (or is there).

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• Jquery modal plugin

  - by trante

  In my web application i have one page call it mypage.html When user clicks some link in mypage a modal window will be opened and he will see some html page. (I do this by Colorbox or Twitter Bootstrap now) But when user clicked a button in modal window, an Ajax request will be sent to my server. If request is successfull he will see some new modal window, else user will see another modal window. After all steps user will close modal window and tasks will be finished. Which jquery modal window plugin is suitable for this type of usage?

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• How can I get a 1920x1080 resolution?

  - by Sam T.

  I a newbie Linux and have just installed Ubuntu in a dual boot with Windows 7. I love the interface of Ubuntu but unfortunately I can only get a 800x600 or 1024x728 resolution with black bars all around the screen. I have an nVidia GTX 570 graphics card and an Asus 1080p 23" monitor. What may be of note is that I had to use the nomodeset command on installation of the boot would get stuck at a line with "nouveau", which I understand is to do with the drivers. Additionally, when I type in xrandr to the terminal, it comes up with the error message "failed to get size of gamma for output default". I guess what I am looking for here is someone who could explain to me really simply the steps I have to take to get a full 1080p resolution, at which point I am sure i will become a great fan of the OS! Thanks in advance, Sam T.

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• New Oracle Cloud support in OEPE

  - by gstachni

  Oracle Enterprise Pack for Eclipse 12c (12.1.1.1.1) includes updated support for development with the Java Cloud Service. Users can now do iterative development against their Java Cloud Service instance in addition to testing against local and remote WebLogic Server installations. Some details of the cloud tools are below: Templates and wizards to create projects and server configurations for Oracle Java Cloud Service Develop applications to run and deploy to the cloud, including Oracle ADF. Check cloud server runtime and deployment logs in new log analyzers Test applications before deployment with integrated whitelist scans. Whitelist tools support as-you-type validation, project build validation, and on demand scans to highlight coding violations. Errors are reported in application source, the Problems view, and a new Whitelist violations view. Access the Oracle Public Cloud administrative consoles directly from within Eclipse.

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• What encryption algorithm/package should I use in a betting game?

  - by user299648

  I have a betting type site where I publish a number (between 0-100) that is encrypted. Then after a period of time, I would review what the number is and prove it with a key to decrypt the encrypted number to prove that I'm not cheating. I also want it to be easily verifiable by an average user. What encryption algorithm/technique/package should I use? I'm no expert on cryptography. There seems to be so many options out there and I'm not sure what to use. python friendly is a plus.

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• What is the benefit of not using Hungarian notation?

  - by user29981

  One of the things I struggle with is not using Hungarian notation. I don't want to have to go to the variable definition just to see what type it is. When a project gets extensive, it's nice to be able to look at a variable prefixed by 'bool' and know that it's looking for true/false instead of a 0/1 value. I also do a lot of work in SQL Server. I prefix my stored procedures with 'sp' and my tables with 'tbl', not to mention all of my variables in the database respectively. I see everywhere that nobody really wants to use Hungarian notation, to the point where they avoid it. My question is, what is the benefit of not using Hungarian notation, and why does the majority of developers avoid it like the plague?

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• Is there a name for this use of the State design pattern?

  - by Chris C

  I'm looking to see if there is a particular name for this style of programming a certain kind of behavior into a program. Said program runs in real time, in an update loop, and the program uses the State design pattern to do some work, but it's the specific way it does the work that I want to know about. Here's how it's used. - Object Foo constructed, with concrete StateA object in it - First loop runs --- Foo.Run function calls StateA.Bar --- in StateA.Bar replace Foo's state to StateB - Second loop runs --- Foo.Run calls StateB.Bar - Third loop runs --- Foo.Run calls StateB.Bar - Fourth loop --- etc. So in short, Foo doesn't have an explicit Initialize function. It will just have Run, but Run will do something unique in the first frame to initialize something for Foo and then replace it with a different action that will repeat in all the frames following it- thus not needing to check if Foo's already initialized. It's just a "press start and go" action. What would you call implementing this type of behavior?

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• How to Get Help With a Command from the Linux Terminal: 8 Tricks for Beginners & Pros Alike

  - by Chris Hoffman

  Whether you’re an inexperienced terminal user or a grizzled veteran, you won’t always know the right thing to type into the Linux terminal. There are quite a few tools built into the terminal to help you along. These tricks will help you find the command to use, figure out how to install it, learn how to use it, and view detailed information about it. None of these tricks require an Internet connection. Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos HTG Explains: What Can You Find in an Email Header?

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• Unable to mount location, Can't mount file

  - by user116008

  I'm a new user to Ubuntu and I have a problem: I had Windows XP in my computer and I had two partitions: C (for system data) and D(for my personal stuff), then, during the Ubuntu installation I chose the Advanced Settings and formated C partition and left D partition intact, went back and chose Install Ubuntu and replace Windows and it installed fine. The problem is that now I open Nautilus and go to Computer, in there it shows my D partition, 640 Hard Disk, but when I try to mount it displays me a message: "Unable to mount location. Can't mount file". I ask you to explain me step-by-step what I need to do because I'm not an advanced user. My computer specs: 2 GiB RAM, Proccesor Pentium(R) Dual-Core CPU E5400 @ 2.70GHz × 2, Graphics Unknow (It's Nvidia GeForce 220 {1GB} or something), OS type 32-bit, Disk 628.0 GB P.S.: My HDD is internal, I'm not using external Hard Drives. Thank You!!! Mike

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• samba share not allowing windows pc to access

  - by user72289

  I have been trying to no avail, to share folders on my ubuntu pc with a windows network. The windows network isn't a homegroup, just a straight up access to folders made public. I can see the ubuntu shares I make, but when I try to access them I get a permission denied contact your system administrator type message. Could someone clarify the area re adding a user to samba, as there are about 30 different unix usernames! I just want my windows network to have unrestricted access to my linux folders. Any help would be greatly appreciated

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