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• Kernel won't update automatically

  - by Bucic

  My current kernel is 3.2.0-26 (my main computer) while on another of my Ubuntu computers, with which I didn't fiddle with unofficial updates, it's 3.2.0-30. Yet the Update manager on my main computer doesn't show available kernel updates. It shows other updates though. I suspect is due to the fact that in the past I installed multiple mainline kernel versions (not recommended versions), up to 3.5* series. What I'm after: Either: Fix automatic kernel updates. Or: Learn about a way to check for the latest official ubuntu kernel version and get it manually (I know how to install kernels from debs) What I have already tried: Uninstalled unused kernels including "the generic one without a number".

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• How to run 2 X sessions with different display managers?

  - by ved2254

  I read about the virtual terminals a little and that gave me an idea. I searched for a way to have two X sessions simultaneously. I had a look at these sites : 1. How to run multiple user X sessions on the same computer, at the same time? 2. How to drag windows between 2 X servers? I tried startx -- :1 but my earlier terminal (on Ctrl+Alt+F7) hung up. How do I ensure this does not happen? My main need is to get Unity on :0 and Gnome-shell on :1 and switch between them like workspaces. As per 2., switching is not recommended as it is not easy. But if I get at least 1., then I'd be happy. I have Ubuntu 12.04 64bit.

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• Setting Up and Running Summary Advisor on an Exalytics Machine (Oracle-by-Example)

  - by Saresh

  If you are running Oracle BI on an Exalytics machine, you can use Summary Advisor to identify the aggregates that will increase query performance. Summary Advisor intelligently recommends an optimal list of aggregate tables based on query patterns that will achieve maximum query performance gain while meeting specific resource constraints. Summary Advisor then generates an aggregate creation script that can be run to create the recommended aggregate tables. Aggregate tables reduce query times by storing precomputed results for queries that include rolled-up data. This tutorial covers steps to set up, configure, and run Summary Advisor on an Exalytics machine using TimesTen database as a target for storing aggregates. You can find the Oracle By Example (OBE) in the Oracle Learning Library (OLL). The content in OLL is available to all customers, partners, and employees.

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• Firefox installed on my ubuntu 12.04 machine but I am unable to connect to the internet(Nobody know???)

  - by Chella

  every other browser installed is working fine..! except this Firefox. what are the things that I need to check, to make firefox work on my computer. I am a newbie for ubuntu. I tried googling not got enough and clear information. Please help me. Thanks in advance..! This is the error that I am getting just before launching of the application..! Could not initialize the application's security component. The most likely cause is problems with files in your application's profile directory. Please check that this directory has no read/write restrictions and your hard disk is not full or close to full. It is recommended that you exit the application and fix the problem. If you continue to use this session, you might see incorrect application behaviour when accessing security features.

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• Ubuntu 11.04 seem's like a laggy OS

  - by user772401

  I'm new to Linux/Ubuntu in general. I just dual booted the Ubuntu 11.04 w/Windows 7 on my Lenovo laptop - Intel i7 Quad Core 2Ghz, 4Gb ram, etc. etc... and for some reason Ubuntu is very laggy and slow. When I'm switching between programs (Chromium, folders, software center, etc..) it doesn't run as smooth as windows 7 (I have no more than 3 programs/windows up at a time...). I don't think it's my system requirements bkz Linux OSs are known to use low system resources. Could be a bad install or do people find it slow and laggy in general or is it my PC mfg type?? I installed it using Wubi - should I do a reinstall? I've already done all the recommended updates..

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• Should I install ia32-libs or lib32stdc++ or can I just use --force-all for 32-bit printer driver

  - by William

  I got a Brother printer MFC class. The brother website only provides 32-bit drivers but I installed 64-bit Ubuntu. It says I need to install "ia32-libs" or "lib32stdc++" to install the 32-bit drivers onto 64-bit Ubuntu. Elsewhere I've read that I don't need to install these packages, I can just use --force-all when installing, but I don't know of the accuracy of this information. My questions: 1) do I HAVE to install "ia32-libs" or "lib32stdc++" or can I use --force-all to make 32-bit drivers install on 64-bit ubuntu? 2) if I do have to install "ia32-libs" or "lib32stdc++", which should I install? Which is better, which is recommended by ubuntu experts?

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• How do I get started with HTML5? [closed]

  - by daniel.sedlacek

  What is the recommended workflow to learn HTML5? What tools should I install? What SDK? Where to start? How to test? How to debug? What do I read? I understand that what is often labelled as "HTML5 development" is in fact a mixture of HTML, CSS, JS and more, however I don't believe that bigger projects are developed in Notepad. That is why I am asking you to reveal your tips and tricks about your workflow.

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• Which Ubuntu version should I use for my HP Envy Ultrabook?

  - by paall

  Which Ubuntu version should I use for my HP Envy Ultrabook? Is there any specific Ubuntu version recommended for ultrabooks? Because when I installed Ubuntu 10.04 and 11.04, the process could not identify my disk. And when I installed Ubuntu 12.04 using Wubi, I could not switch back and forth between Ubuntu and Windows because after switching back from windows to Ubuntu, a command prompt was shown with some unknown error. I need to use Linux for my daily work. So any help would be really appreciated.

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• Why does apt-get keep waiting for headers on Oracle repository?

  - by hughdbrown

  I have this at the end of my /etc/apt/sources.list to retrieve Oracle code: deb http://oss.oracle.com/debian unstable main non-free When I run sudo apt-get update, the app gets stuck displaying this message: 100% [Waiting for headers] If I remove this, apt-get update runs without error. Is there a new, recommended URL for Oracle products and, generally, how do you fix this problem? I am pretty sure this did not happen on 11.10 and has only started with the move to 12.04. I have seen these answers and they do not help: apt-get update stuck on "Waiting for Headers" http://ubuntuforums.org/showthread.php?t=1689579 http://muffinresearch.co.uk/archives/2010/03/30/linux-fix-for-apt-get-update-waiting-for-headers/ http://www.kubuntuforums.net/showthread.php?57567-Ubuntu-problems-on-update

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• New VHD for testing IE6 and IE7

  - by TATWORTH

  Regrettably old versions of IE (6 and 7)  are still in use and it is necessary to test against them. Microsoft recommended using a Virtual Machine to run these old versions. To this end, Microsoft provide free VHD images at http://www.microsoft.com/downloads/en/details.aspx?FamilyID=21eabb90-958f-4b64-b5f1-73d0a413c8ef&displaylang=en These downloads need to be unpacked and run by Virtual PC which isa free download from http://www.microsoft.com/windows/products/winfamily/virtualpc/default.mspx. If your host PC is Windows 7, use XPMORE from http://xpmore.codeplex.com/ to run the images.

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• After installing Ubuntu I can't boot Windows 8 anymore

  - by Gian Luca Scoccia

  I just bought a new laptop (a lenovo ideapad Z500) and it came installed with Windows 8. I wanted to have Ubuntu on it too, therefore I resized the Win8 partition from the control panel and installed Ubuntu on the free space I created. Ubuntu works perfectly, Windows does not load anymore... I tried the recommended repair with Boot-Repair but it did not fix, now I get a "Windows boot loader failed to start" on startup and then I get the GRUB screen. The partition summery created by Boot-Repair is here: http://paste.ubuntu.com/1444837/. How can I fix this? Thanks in advance for your help.

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• Restricted pathfinding Area

  - by SubZeron

  So i'm triying to create a little "XCOM : Enemy Unknown" like game ,and using the Aron Granberg's Pathfinding-Tool (free version) to handle the "click to move part. i want to add a little trap system where the hero get stuck inside an area, so he will have only the possibility to move inside this trapped area, so far everything is fine however when i click outside the trapped area, the hero try to reach the destination even though the wall will prevents him from reaching it. so my question is, is there any way to restrict the area where the pathfinding system work to the trapped area dynamically. and wich Graph Type is recommended to use in this situation or this kind of Games (Grid Graph/Navmesh Graph/Point Graph). Thank you. image link for explanation : https://dl.dropbox.com/u/77993668/exemple.jpg

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• Xubuntu and other Debian based distros slow

  - by William V

  I have a Compaq Presario SR1950NX desktop computer with the AMD64 3800+ processor and 1GB ram and it seems that Ubunutu, Xubuntu and Lubuntu are all laggy. Things seem to be slow such as clicking on menus and opening programs and the UI renders in peices. When using the browser the system slows down considerably. I ran the TOP command and I do notice that xorg hits 30 to 40 percent cpu when running the browsers. I have tried these distros on a spare P4 machine and it is even worse. As long as I don't have a several things open at one time I can manage to get around although sluggishly. I also notice that I can't get debian based distros to install in 64bit (crtc6 failure) only in 32bit. Can anyone tell me what is it that I might be doing wrong? I have an integrated Nvidia card and have tried several of the recommended drivers which sometimes result in no boot screen upon reboot. Thanks

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• When should I decide what language and platforms I will use for a project?

  - by Mikalichov

  During your development process, when is the recommended phase to decide what platform to aim for, and what language to use? I figured that it would be better to choose at the beginning what would be your target platform, as it would affect your design decisions, and limit the language you are supposed to use. However, I have heard several stories of people developing their game with whatever language they were the most confident with, and then porting it to the various platforms. So, what is the best moment to choose? Before, during, after? If there is not one best choice, what factors should affect the decision?

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• How do I correctly upgrade the kernel on Ubuntu 10.04 LTS?

  - by lal00

  I'm trying to upgrade the linux kernel from 2.6.32-34 to the latest update of that series, which appears to be 2.6.32-34. I ran: sudo apt-get update sudo apt-get upgrade At this point i was told that some packages were kept back: The following packages have been kept back: landscape-common linux-headers-server linux-image-server linux-server I proceeded to install those and then to autoremove the kernel (that's what apt-get recommended): sudo apt-get install linux-headers-server linux-image-server linux-server sudo apt-get autoremove My problem is that after booting, and running uname -a i still get the 2.6.32.34 kernel. How can I guarantee that the latest kernel will be loaded? thank you in advance.

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• No sound coming from HDMI

  - by cypwrx

  (Ubuntu 12.04 x64) After looking at other questions (here and other sites) and trying their respective answers, I am still unable to get the hdmi audio out working. I have downloaded the recommended hardware drivers for my card (radeon hd 4350), made sure that the card is not muted in alsamixer, and set it as the correct output device in sound settings. I have also disabled the onboard sound devices in the bios menu. In aplay -l, it shows my hdmi card as hw:0,3 Even after doing sound tests I still cannot hear anything. Any suggestions? Not sure where to go from here, I am fairly new to linux.

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• How can I get my printer working after upgrading to (K)ubuntu 13.10?

  - by Sparhawk

  When using (K)ubuntu 13.04, my network printer worked fine. After upgrading to (K)ubuntu 13.10 today, I can no longer print. I get the error "The printer is not responding." I've tried to add the printer again, and it is automatically recognised. I can add it, and select it from print dialogue boxes, but I get the same error. Brother HL-2040, Kubuntu 13.10 (KDE 4.11.2) ==EDIT== I attempted connecting the printer directly with a USB cable, and this worked fine, so it's not a problem with drivers. (FWIW I'm using the recommended HL-2040 Foomatic/hl1250.) Further, it prints fine over the network from my wife's MacBook.

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• October 2012 Security "Critical Patch Update" (CPU) information and downloads released

  - by user12244672

  The October 2012 security "Critical Patch Update" information and downloads are now available from My Oracle Support (MOS). See http://www.oracle.com/technetwork/topics/security/alerts-086861.html and in particular Document 1475188.1 on My Oracle Support (MOS), http://support.oracle.com, which includes security CVE mappings for Oracle Sun products. For Solaris 11, Doc 1475188.1 points to the relevant SRUs containing the fixes for each issue.  SRU12.4 was released on the CPU date and contains the current cumulative security fixes for the Solaris 11 OS. For Solaris 10, we take a copy of the Recommended Solaris OS patchset containing the relevant security fixes and rename it as the October CPU patchset on MOS.  See link provided from Doc 1475188.1 Doc 1475188.1 also contains references for Firmware, etc., and links to other useful security documentation, including information on Userland/FOSS vulnerabilities and fixes in https://blogs.oracle.com/sunsecurity/

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• October 2012 Security "Critical Patch Update" (CPU) information and downloads released

  - by user12244672

  The October 2012 security "Critical Patch Update" information and downloads are now available from My Oracle Support (MOS). See http://www.oracle.com/technetwork/topics/security/alerts-086861.html and in particular Document 1475188.1 on My Oracle Support (MOS), http://support.oracle.com, which includes security CVE mappings for Oracle Sun products. For Solaris 11, Doc 1475188.1 points to the relevant SRUs containing the fixes for each issue.  SRU12.4 was released on the CPU date and contains the current cumulative security fixes for the Solaris 11 OS. For Solaris 10, we take a copy of the Recommended Solaris OS patchset containing the relevant security fixes and rename it as the October CPU patchset on MOS.  See link provided from Doc 1475188.1 Doc 1475188.1 also contains references for Firmware, etc., and links to other useful security documentation, including information on Userland/FOSS vulnerabilities and fixes in https://blogs.oracle.com/sunsecurity/

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• What kind of programs/solutions can only be written with OOP or are too hard to achieve without it?

  - by user1598390

  Paraphrasing a recent question: What is Object Oriented Programming ill-suited for? I would like to ask the opposite question: What kind of programs cannot be written unless you use OOP? What kind of programs are not recommended to be written using non-OOP techniques? What kind of programs need OOP in order to even be written? What kind of programs would be too hard to write without OOP ? The answer to this question can help sell the idea of OOP to project leaders that have no special interest in code quality. At least they could buy the idea if one shows them the kind of things that are not even possible unless you use OOP.

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• June 13th Webcast: Common Problems Associated with Product Catalog in Sales

  - by Oracle_EBS

  ADVISOR WEBCAST: Common Problems Associated with Product Catalog in SalesPRODUCT FAMILY: Oracle Sales June 13 , 2012 at 12 pm ET, 10 am MT, 9 am PT This session is recommended for technical and functional users who are having problems with product categories and items not showing up in Sales products after setting up the Advanced Product Catalog.TOPICS WILL INCLUDE: Common problems associated with using Advanced Product Catalog in Sales. A short, live demonstration (only if applicable) and question and answer period will be included. Oracle Advisor Webcasts are dedicated to building your awareness around our products and services. This session does not replace offerings from Oracle Global Support Services. Current Schedule can be found on Note 740966.1 Post Presentation Recordings can be found on Note 740964.1

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• Why does my screen blank out for the duration of the Grub boot menu?

  - by hushs

  Upon booting, when I should see the GRUB menu, my monitor simply says: "No optimum mode. Recommended mode: 1600*1200". If I wait for a short while, Ubuntu starts to boot and it reaches the desktop. So I guess there is no video signal during that time, there's the grub menu but I cant see it and after the wait time everything is fine. I have the same problem when I log out for a short moment, before the log in screen is reached. and this also happens when i shut down ubuntu. The VGA is an onboard NVIDIA GeForce 7025.

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• Announcing an Upgrading How-To Technical Paper for WebLogic 11g

  - by Oracle Retail Documentation Team

  Oracle Retail has published a document on My Oracle Support (https://support.oracle.com) that provides you with guidance on how to upgrade from WebLogic11g 10.3.3 to WebLogic11g 10.3.4. The goal of this document is not to be a substitute for WebLogic documentation but to illustrate how Oracle Retail approached and performed its upgrade.   Doc ID: 1432575.1This document provides information about how to upgrade to WebLogic 10.3.4 and how to complete related component upgrades as well. Upgrading from WebLogic 10.3.3 to WebLogic 10.3.4 (rather than performing a separate WLS 10.3.4 installation) is recommended so that you do not have to port information and custom settings from your 10.3.3 installation. The paper addresses the following topics: High Level Steps for Applying WLS 10.3.4 Patch and 1.1.1.4.0 Patch Set JRockit Upgrade (optional for Linux and Sun OS only) WLS 10.3.4 Upgrade using Upgrade Installer SOA 11.1.1.4 Upgrade Forms 11.1.1.4 Upgrade Update DB Patch Assistant Post Patch Instructions Validation

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• using "IS" is better or checking for "NOT NULL"

  - by BDotA

  In C#.NET language: This style of coding is recommended or the one below it? if (sheet.Models.Data is GroupDataModel) { GroupDataModel gdm = (GroupDataModel)sheet.Models.Data; Group group = gdm.GetGroup(sheet.ActiveCell.Row.Index); if (group!=null && controller != null) { controller.CheckApplicationState(); } } or this one: var gdm = sheet.Models.Data as GroupDataModel; if (gdm != null) { Group group = gdm.GetGroup(sheet.ActiveCell.Row.Index); if (@group!=null && controller != null) { controller.CheckApplicationState(); } }

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• Does any CMS natively support something like aquaBrowser/Vufind

  - by nus

  What I'm looking for is to set up a CMS website with a tag cloud/search system where when you click a tag it shows as a search filter, and you get a new tag cloud which only shows tags from the articles that have the primary tag. This should let the user easily include or exclude tags from the search. Also i would like to let the user filter on publication date by using a slider... Check this for an example of how aquabrowser does this (just search for something and play with the tag cloud): http://kidscatalog.columbuslibrary.org It's not perfectly what I want and I don't want to use flash, but I like the concept alot. If something like this does not exist and i might have to code it myself, which cms is most recommended (eg easy to extend, already has tag clouds and search filters,...)

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