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  • Ubuntu 14.04.1 will not load - stops in tty1

    - by Mitya Stiglitz
    I was following some "guides" on how to clean my system and have cleaned it so well that it doesn't work anymore. Example: in synaptic, I completely removed all packages in "Not installed: residual configuration" and a ton of other packages I "don't need". I know this has probably been asked a trillion times but I really need to find out how to get back to the working OS I had about two hours ago. One hour of googling has not helped me, so I am asking here. When I start Ubuntu, usually nothing happens for quite some time and then tty1 starts. I can log in normally, but I don't know how to proceed from there. I can do: less /var/log/apt/history.log and get a log, but I don't know how to get started with this...

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  • How can I store spell & items using a std::vector implementation?

    - by Vladimir Marenus
    I'm following along with a book from GameInstitute right now, and it's asking me to: Allow the player to buy and carry healing potions and potions of fireball. You can add an Item array (after you define the item class) to the Player class for storing them, or use a std::vector to store them. I think I would like to use the std::vector implementation, because that seems to confuse me less than making an item class, but I am unsure how to do so. I've heard from many people that vectors are great ways to store dynamic values (such as items, weapons, etc), but I've not seen it used.

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  • Google adwords API - credit card safety question

    - by anon
    Hi, Google is asking me to fax credit card xerox in order to activate adwords API in MCC. This really sucks imo... they could have had prepaid option. In any case, my questions: 1) Are there alternatives to this - is there a 3rd party provider who will give me this service without me sending them the credit card info? 2) How secure is it to send my credit card fax via some online fax service? 3) Do you think they will reject the application if I hide my CVV number in the fax? Any other thoughts appreciated :) thanks

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  • Oracle Linux 6 Implementation Essentials Certification Exam Now Available

    - by Antoinette O'Sullivan
    Get proof of your linux system administration skills by taking the Oracle Linux 6 Implementation Essentials Certification exam. This certification is available to all candidates. Oracle Partner Members earning this certification will be recognized as OPN Certified Specialists. This certification takes under 3 hours, asking you between 120-150 questions on areas including: Introduction to Oracle Linux Installing Oracle Linux 6 Linux Boot Process Oracle Linux System Configuration and Process Management Oracle Linux Package Management Ksplice Zero Downtime Updates Automate Tasks and System Logging User and Group Administration Oracle Linux File Sytems and Storage Administration Network Administration Oracle Linux System Monitoring and Troubleshooting Oracle Certifications are among the most sought after badges of credibility for expertise in the Information Technology marketplace. See Benefits of Oracle Certification for more information. To prepare for this exam, you can take the Oracle Linux System Administration training.

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  • Getting a solid understanding of Linux fundamentals

    - by JoshEarl
    I'm delving into the Linux world again as a diversion from my Microsoft-centric day job, and every time I tackle a new project I find it a frustrating exercise in trial and error. One thing that I always try to do when learning something new is figure out what the big pieces are and how they work together. I haven't yet come across a resource that explains Linux at this level. Resources seem to be either aimed at the barely computer literate crowd (Linux doesn't bite. Promise!) or the just compile the kernel and make your own distro crowd. I'm looking for a "JavaScript: The Good Parts" type of road map that doesn't necessarily answer all my questions so much as help me understand what questions I need to be asking. Any suggestions?

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  • How to set wifi driver settings to prefer 5 GHz channel above 2.4 GHz

    - by Wouter
    Currently I'm in a new building of my university. In this building my wifi often breaks down and then restores connection again. This is really irritating since it happens a lot. Now as a coincidence there were some tech guys running around here and where asking everyone if the wifi was doing fine. I told them that my wifi tears down all the time and then reconnects. They figured out that my wifi is switching all the time between the 2.4 GHz channel and 5 GHz channel. They asked me if I could acces the driver settings of my wireless card. Unfortunately I don't know how to do this is in either Linux or Windows. And unfortunately again they only knew the windows solution xD. So I hope somebody can tell me how I tell my wifi that it should stay on the 5 GHz network and not disconnect and switch to the 2.4 GHz channel?

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  • Corrupt plymouth boot screen when using properietary Nvidia drivers

    - by Tejas Hosangadi
    I recently got the final version of Ubuntu Natty Narwhal x64 and everything is working just fine. The only thing I am having trouble with is the boot screen. After I installed the proprietary nVidia drivers, the boot screen becomes corrupt and only shows text (as it has been doing since Ubuntu 10.04). When I followed the instructions to fix the boot screen in 10.04 and 10.10, the boot screen still remains the same and the problem isn't resolved. Please give a full guide on how to fix this problem. Machine Details Computer : HP Pavilion p6240in Processor : Core 2 duo Memory : 4096 megabytes Graphics : nVidia G210 3d graphics Monitor : Dell 17 inch lcd Another question I would like to ask is whether it is possible to use this script (http://www.webupd8.org/2010/10/script-to-fix-ubuntu-plymouth-for.html) with 11.04. I am asking this question because it says that the script works only with 10.04 and 10.10.

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  • How do I go back to the initial desktop I got when I first installed the latest Ubuntu?

    - by RichardB
    I researched all the other questions and can't find specifically what I'm asking. I did a new install of Ubuntu 14.04.1 and started adding tweaks. I saw the Cinnamon desktop and it looked cool, but after I installed it (with Gnome), I decided I wanted to have the native Ubuntu 14.04.1 experience. I've got Unity to show up, but the top banner is still different and I want it just like it was in the initial install. I've added about 20 updates and upgrades and really don't want to go through all that again. I appreciate your response.

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  • Continue with out a default route?

    - by user2009
    I am doing a complete unattended install of Ubuntu 12.04. I am doing static network configuration. Here is content for Static network configuration from the preseed file. d-i netcfg/disable_dhcp boolean true d-i netcfg/no_default_route boolean true d-i netcfg/get_nameservers string 192.168.1.254 d-i netcfg/get_ipaddress string 192.168.1.13 d-i netcfg/get_netmask string 255.255.255.0 d-i netcfg/get_gateway string 192.168.1.1 d-i netcfg/confirm_static boolean true Still is asking "Continue without a default route?". I have to say , then only installed is going ahead. Am passing preseed file via network (preseed/url). How to avoid this manual intervention? Does the order of netcfg statements matter?

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  • Ogre Specific libraries

    - by Molmasepic
    i have a simple question. For people that know and built ogre3D from source as a Static library, What is the order of which the libraries should be linked? The libraries I need to be organized are: Ogre Plugins 'libOgreMain.a' Ogre RenderSystems Boost(version 1.47)link Ogre's Dependencies The reason im asking is because in the Ogre forums, I have asked about this and didnt get a good reply...yet. The other reason is because even though i link to the boost library, i get this error: undefined reference to '_imp___ZN5boost6thread20hardware_concurrencyEv' My compiler is MinGW with CodeBlocks as the IDE And my Main Computer Im building on is Windows Vista 32 bit

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  • What are the most important OO skills to show off in the job hunt?

    - by Kat
    I am in the market for new employment, and found a position were they asked me to create a programming sample based off an assignment. I blew the sample trying to get it done quickly one night, and got declined - only to be given a second chance recently. The concern was that I didn't really demonstrate object oriented knowledge. I've rethought my approach but I figure it's worth asking: if you were hiring someone for an OO position, what skills would you most want to see them demonstrate they had a firm grasp on? I want to be sure that I'm missing anything important this time around.

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  • Where can I find the application executables in the filesystem?

    - by richzilla
    Where are executables for programs stored in Ubuntu? An application (Komodo Edit) is asking me to identify an application to be used as a web browser. I've become used to just entering the application name as a command for situations such as these, but this scenario got me thinking. I know in Windows it would just be the relevant application folder in the 'program files' folder, but I'm assuming things are a bit different on Linux? I thought somewhere like bin would be logical but this appears to standard Linux/Unix applications. Where would I find the binary executable for applications stored on my system?

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  • Ubuntu, Gnome, PAM and ecryptfs

    - by Michel
    I would like to have a directory accessible to a couple of users, and not readable by maintenance types ... I can do what I want using ecryptfs and a password known only to the "couple of users" in question, who then can mount the directory and use as they see fit. I would love to be able to automate that process and unlock the directory at login - again, only for the "couple users" in question, without asking a password. Gnome-keyring is able to store passphrases/passwords encrypted; and, apparently, if I could get a key identity to ecryptfs, Gnome PAM modules would allow the key with that identity to be unlocked, and the directory could be mounted. Alas, I have found no way to go from point A (Gnome PAM keyring module) to point B (use the unlocked key in ecryptfs). Another use of the same mechanism would allow to build a "key escrow" mechanism, where keys to encrypted volumes are safekept with, e.g., HR; so that company information in encrypted directories can be recovered if you pass under the proverbial bus.

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  • What can Haskell's type system do that Java's can't and vice versa?

    - by Matt Fenwick
    I was talking to a friend about the differences between the type systems of Haskell and Java. He asked me what Haskell's could do that Java's couldn't, and I realized that I didn't know. After thinking for a while, I came up with a very short list of minor differences. Not being heavy into type theory, I'm left wondering whether they're formally equivalent. To try and keep this from becoming a subjective question, I'm asking: what are the major, non-syntactical differences between their type systems? I realize some things are easier/harder in one than in the other, and I'm not interested in talking about those. And to make it more specific, let's ignore Haskell type extensions since there's so many out there that do all kinds of crazy/cool stuff.

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  • What would be a best way to code a rudimentary LIMS?

    - by Sam
    Hi, I hope that I am asking the right question at right place. If not, please do not hesitate to point me to the right place. I am working in a laboratory, where computers/programming/programmers are all used only as support. But I believe that we need better information organization and management. Given the diverse information generated in the lab I believe that we need some sort of Laboratory Information Management System. Is there a good starting point to do this? I am myself not a trained programmer. I can code reasonably well in python and R, and if necessary I can learn MySql, php.

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  • Pay Per Click Software

    - by Eddy Freeman
    What software do sites like www.shopzilla.com, www.become.com, www.kelkoo.com etc.. use for the Pay-Per-Click product listing campaigns they offer for their retailers. I am asking what kind of software do they use to know that a certain retailer's products has been clicked 50 times or 100 times(and then the cost of the click is deducted from his money-account) etc... Can someone point me to those kind of softwares? EDIT *Some Explanation :: * In a site like www.shopzilla.com, retailers will upload thier products(list their products on the site). Anytime a buyer clicks on a product to go the retailer's website, an amount of money(say $0.20) is deducted from his account(the money he has deposited in his account with shopzilla). A retailer can see how many times buyers have clicked on his products and how much money remains in his shopzilla accounts. Am looking for such softwares that comparison sites like shopzilla uses to run this type of campaigns. I hope it is clear now.

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  • Fonts look horrible in any java application

    - by Eirik Berg
    All fonts in java applications look horrible. I have seen a few questions about this previously, but they are quite old now(11.04 was the most recent, but that didn't seem to be the same problem). For some reason java applications do not use the system font (Ubuntu 11), but rather some elongated font that doesn't seem to have any anti-aliasing. So what I'm asking is if this is an open bug(couldn't find any on launchpad), something the developers have done wrong, or if there is a way to configure the fonts used in java application. Perhaps this is just a shortcoming of openjdk and I should install the Sun version instead? Attached an image showing jitsi, but the problem is also present in minecraft, my internet-bank and anything else involving java. I'm on 12.04, but since I couldn't find anything on launchpad I'm assuming that isn't relevant. Edit: actually managed to forget the picture... Thanks!

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  • Black Login Screen after installing updates 12.04

    - by general_guts
    I love my lixux 12.04..till yesterday it installed new updates and i clicked on restart.. As system went to grub all normal & loaded normal..then instead of pretty desktop (auto login turned on) i have black screen asking for login and password.. Why? How i get my desktop back to before? Please help new noob!!! This is due to updates i am sure, nothing in hardware has changed and no other display settings changed.. using AMD diver from there site linux one for my raedeon 6850 and have catalyst driver working fine.. i have tried typing in weird commands but they didnt do much like sudo start lightdm and sudo startx .. didnt do anything just froze.. i dont exactly no what these commands do but something to do with black screen..so i thought id try it.. Thanks

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  • CFP for Java Embedded @ JavaOne

    - by Tori Wieldt
    Java Embedded @ JavaOne is designed to provide business and technical decision makers, as well as Java embedded ecosystem partners, a unique occasion to come together and learn about how they can use Java Embedded technologies for new business opportunities. The call-for-papers (CFP) for Java Embedded @ JavaOne is now open. Interested speakers are invited to make business submissions: best practices, case studies and panel discussions on emerging opportunities in the Java embedded space. Submit a paper. Also, due to high interest, event organizers are also asking for technical submissions for the JavaOne conference, for the "Java ME, Java Card, Embedded and Devices" track (this track ONLY). The timeline for the CFP is the same for both business and technical submissions: CFP Open – June 18th Deadline for submissions – July 18th Notifications (Accepts/Declines) – week of July 29th Deadline for speakers to accept speaker invitation – August 10th Presentations due for review – August 31st Attendees of both JavaOne and Oracle Openworld can attend Java Embedded @ JavaOne by purchasing a $100.00 USD upgrade to their full conference pass. Rates for attending Embedded @ JavaOne alone are here.

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  • What can Haskell's type system do that Java's can't?

    - by Matt Fenwick
    I was talking to a friend about the differences between the type systems of Haskell and Java. He asked me what Haskell's could do that Java's couldn't, and I realized that I didn't know. After thinking for a while, I came up with a very short list of minor differences. Not being heavy into type theory, I'm left wondering whether they're formally equivalent. To try and keep this from becoming a subjective question, I'm asking: what are the major, non-syntactical differences between their type systems? I realize some things are easier/harder in one than in the other, and I'm not interested in talking about those. And to make it more specific, let's ignore Haskell type extensions since there's so many out there that do all kinds of crazy/cool stuff.

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  • Do you own your tools?

    - by Mike Brown
    A colleague of mine wrote a post a while ago asking Do you own your tools. It raises an important question. Do you? I answered way down in the comments. As an independent, I do own my tools. Even when I wasn't independent, I had my own (fully licensed) tools that I used for personal development. I don't think buying your own tools are something to puff your chest up about (just because you can buy a $100 pair of basketball sneakers they won't make you as good as Michael Jordan), but it IS an investment in yourself that shouldn't be taken lightly. What do you think good people?

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  • Dangerous programming

    - by benhowdle89
    Ok, i'm talking pure software/web, i'm not on about code to power Life Support machines or NASA rockets. In terms of software/web development what is the most dangerous single piece of code someone could put into a program (say if they had a grudge against a client/employee) In PHP, the first thing that comes to mind is some sort of file deletion: function EmptyDir($dir) { $handle=opendir($dir); while (($file = readdir($handle))!==false) { echo "$file <br>"; @unlink($dir.'/'.$file); } closedir($handle); } EmptyDir('images'); Or a PHP script that takes a user's sensitive input and posts it to Google sitemap or something? I hope this doesnt get closed off as subjective as there surely must be a ranking order of dangerous code. So i'm asking for the No.1 spot :) DISCLAIMER: I have no grudges against anyone, just curious for the answer!

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  • Wine 1.2 crash after I start Mega 5.0

    - by Tomáš Šíma
    I installed Mega 5.0 by running "sudo sh MEGA5_Setup_deb_v2.sh" The application downloaded wine 1.2 as mega requires in order to work under Ubuntu. However every time I start the application through the icon provided, wine crashes asking me to send/save bug report, the problem is that if I choose to do so, megas starting window pops up covering the bug report window leaving me unable to do anything (as it won't move) The only solution I have come up with is to log out and log back in, as I cancels wine. I beg you following: Please post detailed step by step instructions how to deal with said problem Tell me if forceful log out, can damage computer of any of my data Please forgive me my weak English as it is not my native language. Also forgive me my weak skills concerning Ubuntu usage as I have me forced to switch to Ubuntu this very day. Thank you.

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  • Ubuntu 11.10 with KDE installed does not prompt for elevation for privileged ops in all apps

    - by Michael Goldshteyn
    I installed the KDE window manager on top of Ubuntu 11.10 and while I am using KDE, I do not get an elevation dialog when I try to perform tasks that require root privileges. Instead, the operations silently fail, unless I launch apps from a terminal, in which case I get errors like: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 649, in on_isv_source_toggled self.backend.ToggleSourceUse(str(source_entry)) File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 143, in __call__ **keywords) File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 630, in call_blocking message, timeout) dbus.exceptions.DBusException: com.ubuntu.SoftwareProperties.PermissionDeniedByPolicy: com.ubuntu.softwareproperties.applychanges Or from the muon package manager, an error dialog such as: Does anyone know what I need to do to fix this, so that I get a proper dialog asking for elevation? Otherwise, I have to start each app that may need root privs with sudo from a terminal or gksudo. Thanks

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  • Web Developer or Software Engineer?

    - by dahacker89
    A question that I have been asking myself and really confused which path to take. So I need your guys help as to the pros and cons of these 2 professions in today's world. I love web applications development as the Web is the best thing to happen in this age and nearly everyone gets by on the World Wide Web. And also tend to keep learning about new technologies and about web services. On the other hand I like software engineering also for the desktop applications as I have had experience with development small scale softwares in VB.Net, Java, C++, etc. Which path has more scope and better future? Whats your view?

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