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• Unable to boot 12.04 server: no LVM activated and impossible to mount /

  - by baronKarza

  I'm stuck in the Busy Box shell after upgrading from Ubuntu server 11.10 to Ubuntu server 12.04 64 bit. During the booting phase the system hangs while mounting root filesystem. My system is so configured: /dev/sda1 -- /boot /dev/mapper/vg-lv_root /dev/mapper/vg-lv_var /dev/mapper/vg-lv_tmp When the boot process fails and I'm forwarded to the busybox shell, if I type vgchange -ay I can mount my volumes and all it's OK. But it does not enable LVM automatically so that it is impossible to mount root, var, and tmp. I tried to start with a Knoppix, chroot, reinstall (aptitude) both kernel and lvm2 as suggested by this tread "Fixing unbootable installation on LVM root from Desktop LiveCD": nothing changed. I can't figure out what is the problem. Any suggestion is welcome. Thanks in advance.

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• Network programming under windows: is WSA functions can be more complete than pSock functions [on hold]

  - by Kane

  I plan to make a set of classic socket functions to simplify their usages. Since i work under windows and linux indifferently i usually make it portable (it's not my first version of this set of functions), but i want to do something different this time and dedicate one version to windows, and one other to linux. With that i wonder for the windows version, if the WSA* functions can have any interest using them instead of the psock ones. I have found nothing about a comparison between them, so if any of you have any idea, suggestion, link or benchmark ?

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• Copying VBoxAdditions to usr/share/virtualbox folder

  - by Joe

  Since for some reason VBox does not find the Additions on the internet, I was trying to install them in the Ubuntu directory Vbox is looking for them - which is: usr/share/virtualbox but I am denied permission to do so. Any way around it? I am relatively new to ubuntu (know how to use the GUI, but still learning how to talk to the machine proper, so many things will be new to me; used to be power user/analyst for MS Windows, 98-Vista, so not a PC newbie, but still I'd say Linux newbie). Any suggestion is more than welcome! Thanks Joe

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• how to map a network drive [duplicate]

  - by acquacheta

  This question already has an answer here: Correct way of mounting a Windows share 1 answer I hope someone can help me.. I'm trying to connect with my university remote filestore, but I can't make it work.. Here is explained what to do on Windows or Mac, and here I found a guide about how to do it with ubuntu, but it's not working to me (at the end of all the steps, I can't access to the mounted folder). I can access to the storage through Konqueror (I'm using KDE), but I would like to access to it also without it. Any suggestion?

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• Ubuntu 11.0 HDMI Video Card No 5.1 Audio

  - by ryandlf

  I am using Ubuntu and XMBC on my HTPC and have chosen the Radeon HD5570 Video card which has an HDMI output. In the sound preferences there is no surround sound option for the video card just stereo and although I can get sound through it in XBMC, my receiver does not state Dolby Digital on movies that are in fact Dolby so its definitely not giving me the true sound it should. Does this card not support surround sound through HDMI and I somehow missed it? If that is the case does anyone have suggestion that has been tested and works? Id like to know its going to work before investing in yet another video card.

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• What can I change/investigate where the install does not complete?

  - by tunist

  I have already successfully installed Ubuntu 10.10 on my laptop and it works fine. I attempted to get my desktop PC to dual boot Windows and Ubuntu but found that neither the 32 or 64 bit install images will boot/install successfully. The startup script locks on 'initializing core #2' (or 1 or 3).. once I saw it say 'ok' at the end but it still locks there. I have tried to change the boot sequence by inserting 'debug' and 'acpi-off' into txt.cfg in both isolinux and syslinux folders but no changes were obvious during the boot.. as far as it got. The pc is built with an abit IP35 motherboard and nvidia 8600GT gfx card. Does anyone have any suggestion of what else I can change to get the install working?

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• Programming language for simple program?

  - by jamherst

  I am wondering about which programming languages people see fit to create a program idea that I had. I am looking to create a fairly simple program whose main functions are adding to, managing, and searching through a database of people, all through a polished GUI. It will be for use in the business world, so I think Windows would be the priority, but Mac and Linux support wouldn't be bad. Also, eventually I would like to add the ability for an instance of one program on a computer to interact with other instances on the same network, mainly through the sharing of a database. Most of my experience is in Java, but I don't particularly like the appearance of Java GUIs, so I'm looking for an alternative. I noticed that a lot of people have suggested C++ or C# in similar posts, so what are some of the advantages/disadvantages of one or both if that is your suggestion. Thanks for any help in advance.

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• Ubuntu doesn't start and I can't login

  - by Meph00

  My ubuntu 13.04 doesn't boot anymore. Eternal black screen. If I press ALT+CTRL+F1 I see that it's stucked on "Checking battery state [OK]." I'd like to try to go with sudo apt-get install gdm but I can't login on terminal tty2, tty3 etc. They correctly ask for my nickname, then they make me wait a lot, ask for password and make me wait again. After a lot of time (... a lot) the best I could achieve was visualizing "Documentantion https://help.ubuntu.com". I can never reach the point where I can give commands. Plus, during the long pauses, every 2 minutes it gives a messagge like this: INFO: task XXX blocked for more than 120 seconds. Any suggestion? Sorry for my bad english and thanks everyone for the attention.

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• In a multiplayer game, should I store the list of character names on the Player class?

  - by Gökhan Nas

  I am writing a multiplayer game that has account system and character creation system like standart MMORPGs. I have a question about name creating issue. I think that I can create a static variable on Player class that keeps created player names but it confused me. It will tell me name is valid or unvalid depends on the other players has this name. Questions; Does implementation does make sense ? If i have 1000 players, is it means it consumes 1000 times of memory of this list? Or it just consume as like there is one? What is your suggestion for place that I can keep player name list? A new class?

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• E-Business Suite Applications Technology Group (ATG) Advisor Webcast Program – June 2014

  - by LuciaC-Oracle

  Webcast: EBS Patch Wizard Overview Date: Thursday June 12, 2014 at 18:00 UK / 10:00 PST / 11:00 MST / 13:00 EST Topics covered will include: What is Oracle EBS Patch Wizard Tool? Benefits of the Patch Wizard utility Patch Wizard Interface Patch Impact Analysis Details & Registration : Doc ID 1672371.1Direct registration link. Webcast: EBS Proactive Analyzers Overview Date: Thursday June 26, 2014 at 18:00 UK / 10:00 PST / 11:00 MST / 13:00 EST Topics covered will include: What are Oracle Support Analyzers? How to identify the Analyzers available? Short Analyzers Overview Patch Impact Analysis How to use an Analyzer? Details & Registration : Doc ID 1672363.1Direct registration link.If you have any questions about the schedules or if you have a suggestion for an Advisor Webcast to be planned in future, please send an E-Mail to Ruediger Ziegler.

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• UbuntuGuide Fails

  - by kiloseven

  How do I report a problem with the Ubuntu Guide website? http://ubuntuguide.org/images/UbuntuGuideSaucyPt1.epub is linked from http://ubuntuguide.org/wiki/Ubuntu_Saucy_Repositories under 'eBook Version' above the list of contents at top of page,. However, that link is 404'd. Also tried http://ubuntuguide.org/images/UbuntuGuideSaucy.epub which also fails. So, where do we report Fail at ubuntuguide.org? I see nowhere there to so do. I have also tried, twice on separate days, to register there, but never get the confirmation email. Anyone have a suggestion?

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• How can I support scrolling when using batched rendering for my tiles?

  - by dardanel

  I have tiled map 100*75 and tiles are 32*32 pixel.I want to use batching for performance .I don't figure it out , because of my game needs scrolling and every frame i draw 22*16 tiles (my screen is 20*16 tile) .I thought that batching tiles for every frame .Is it good or any suggestion? edit :to more clarify I want to use occlusion culling and batching at the same time.I thought that drawing only visible areas and batching them together .But there is a something i couldn't figure out .When scrolling screen with translate matrix , if one row become invisible , I bind new row and batch them again.Every batched objects needs to buffer again.So I batch tiles and buffer to VBO every time when one row become invisible .I don't know these way is efficient or not .This is my question .And i am open to any suggestions.

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• What is "egoless programming"?

  - by Bob Murphy

  I first heard this term about fifteen years ago. My understanding is similar to that described in the Wikipedia article and a TechRepublic article: you work with your colleagues in a "friendly, collegiate way in which personal feelings are put aside". It includes things like doing peer reviews with mutual respect and a desire to learn, and not feeling like you "own" code, so if somebody has a suggestion or says there's a bug or needs to change it, you don't get defensive about it. I've also thought it was largely about having an attitude that makes for good relations with other programmers with the goal of improving the code. So I haven't seen it as being incompatible with taking pride in the quality of your work or feeling regret if something you did caused your customer a problem. However, an answer to a recent question makes me think some other programmers have different understandings about "egoless programming". So what is the correct definition? And what are its implications?

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• EBS Applications Technology Group (ATG) Advisor Webcast December 2012

  - by LuciaC

  Invitation : Advisor Webcast December 2012 In December 2012 we have scheduled an Advisor Webcast, where we want to give you a closer look into the invalid objects in an E-Business Suite Environment. E-Business Suite - Troubleshooting invalid objectsAgenda : Introduction Activities that generate invalid objects EBS Architecture EBS Patching Concepts Troubleshooting Invalid Objects References EMEA Session : Tuesday December 11th, 2012 at 09:00 AM UK / 10:00 AM CET / 13:30 India / 17:00 Japan / 18:00 Australia Details & Registration : Doc ID 1501696.1Direct link to register in WebExUS Session : Wednesday December 12th, 2012 at 18:00 UK / 19:00 CET / 10:00 AM Pacific / 11:00 AM Mountain/ 01:00 PM Eastern Details & Registration : Doc ID 1501697.1Direct link to register in WebExIf you have any question about the schedules or if you have a suggestion for an Advisor Webcast to be planned in future, please send an E-Mail to Ruediger Ziegler.

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• Upgrade from ubuntu 9.10 to 11.10

  - by Chinnu

  Our project definition is to develop CUDA programs. Our workstation has CUDA 3.1 installed in Ubuntu 9.10. We need to program in CUDA 5.0 which can be installed only on ubuntu 11.10 or 12.04. We tried upgrading but were faced with many problems as 9.10 is no longer supported. So we chose to proceed with a clean installation. Since we have a shared workstation, we need to back up the settings. We decided to use clonezilla for cloning the system. Booting from the LiveCD showed an unexpected error. Another option was to install 11.10 in an external HDD by partitioning it, but Gparted could not be installed and terminated with the error "installArchives() failed" which we couldn't solve even after modifying the sources.list. We are stuck either ways. Have no idea how to proceed and we have a deadline to submit our CUDA program. Any suggestion is welcome.

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• What are the Starting Games I need to make?[Best steps for a beginner Game Developer?] [closed]

  - by Man With Steel Nerves...

  Possible Duplicate: What are good games to “earn your wings” with? Hai, I'm new to the genre "Creating Games".Previously i had done only porting.I need some suggestion's for making a game. What are the basic game logics i need to start with? - Should i write Tic-Tac-Toe game? - Actually this seem very basic to me. I'm totally confused on where to start with.I like to create big games but after starting i feel the game is too heavy to handle. Can any one list out the basic needs of a Game Play programmer? I don't mind using any platform (Flash,c++,objective-c) but i need to know what are the game logic's i need to know before i start a big game.

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• How to change ext4 Hard drive partion to NTFS for installing Windows xp?

  - by Sina

  I have a ubuntu in Root directory with separated Home directory. This is all my hard partition. I inserted xp cd to install it but I can't find any hard drive suggestion ! I decided to boot it by Gparted and change the Root directory to NTFS, I formatted it and run xp cd again. I can't find any hard drive too. I don't want to change all partitions because I don't want to lose my data on them. What should I do ?

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• How do I create tileable solid noise for map generation?

  - by nickbadal

  Hey guys, I'm trying to figure out how to generate tileable fractals in code (for game maps, but that's irrelevant) I've been trying to modify the Solid Noise plug-in shipped with GIMP (with my extremely limited understanding of how the code works) but I cant get mine to work correctly. My modified code so far (Java) GIMP's solid noise module that I'm basing my code off of (C) Here is what I'm trying to achieve but This is what I'm getting So if anybody can see what I've done wrong, or has a suggestion how I could go about doing it differently, I'd greatly appreciate it. Thanks in advance. And if I'm asking way to much or if just a huge failure at life, I apologize.

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• UBUNTU 11.10 will not boot after succesfully installed on 8GB usb 3.0 pendrive

  - by Oldrifle

  UBUNTU 11.10 on 8GB USB 3.0 pendrive. Drive Partitioned using gparted. 4GB BASE 3GB Home 600MB swap Installation Ok. Restart blinking cursor. Installed another distro on another USB 3.0 stick. It boots OK. --------------- DEBUG -------------------------------------- Boot Other distro and check: I compare boot file with another linux. grub of ubuntu is 1.4mb contend is different. Taken photo with mobile camera but can not add here. Files has note(music) sign on it. Downloaded 11.10 desktop and Installed. Same result. Will download 12.x when ready and try. Ready to try any suggestion.

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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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• Radeon HD5570 HDMI Video Card 5.1 Audio doesn't work

  - by ryandlf

  I am using Ubuntu and XMBC on my HTPC and have chosen the Radeon HD5570 Video card which has an HDMI output. In the sound preferences there is no surround sound option for the video card just stereo and although I can get sound through it in XBMC, my receiver does not state Dolby Digital on movies that are in fact Dolby so its definitely not giving me the true sound it should. Does this card not support surround sound through HDMI and I somehow missed it? If that is the case does anyone have suggestion that has been tested and works? Id like to know its going to work before investing in yet another video card. UPDATE I purchased a Nvidia GeForce GTS 450, plugged it in, downloaded the proprietary driver from the system control panel, disabled the onboard audio from the BIOS (not sure if this was necessary but I did it anyways), and changed the sound settings to use the new video card. Everything works flawlessly. It was a seemless setup.

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• How do I compress a directory?

  - by user9589

  I'm trying to compress a directory and ftp it to a windows ftp. I have tried every tar command I can find to compress a directory. It appears to be ok. Then I transfer it and view it's contents using Winrar. Winrar keeps telling me the file is corrupted. I have viewed other .gz or .bz2 files using winrar but for some odd reason I can't get it to work. I would prefer just to have it zip the files so they have a .zip extension but even then when i try to browse it's contents both windows and winrar claim it's corrupt. Does anyone else have a suggestion as to something else to try?

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• Find out when a new domain appears in search results

  - by TerryB

  Does anyone know a way to perform the following: I want to know whenever a new domain starts appearing in the google search results for a particular query. For a given google search query, I'd like to receive an alert whenever a new domain pops up and starts appearing in the search results for that query. Alternatively, it would be great if you could just sort google search results by the age of the domain, making it easy to find new sites. As far as I can tell you can only sort by when the page was "last updated". Is something like this possible? EDIT: Following John's suggestion of Google Alerts. The problem with Google Alerts is that it sends you any new PAGES appearing in the search results, not just new DOMAINS.

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• What parts of Java I should know by now?

  - by WinstonChurchill

  I have been working in the enterprise Java field, mostly for financial institutions, for about seven years. Beyond core Java, what are "parts" of Java I should know by now? Should as in it will be useful either to nail the interview, or in an actual job. For example, I have never used JSP beyond "hello, world", but I don't suppose that it's something I need to go learn. But I have got core Spring pretty well done. I've read up on GC but that was a while back and need to re-visit it. I'm looking for one suggestion per post please.

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• Serverless Web Application

  - by Andrea Di Persio

  In my company we work on a software that produce reports in html format. My bosses love the fact that static html pages can be moved across computer simply by moving/copying a folder and no web server is involved, so the customer only need a browser. The problem is that they asking me to implement a lot of feature which is very hard to implement properly and in a clean way without an application server. Frames cross domain problem, the impossibility to work with GET and POST data, no URLs routing...is very hard to work with this limitations. Anyone had similiar experience and wants to share their tricks/suggestion ? Do I need to tell my boss 'there is no future without a web server'? Regards.

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