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• What is the sudo password after I deleted the password for the user?

  - by Ubuntunewbie

  To have an easier access to the computer I deleted the user's password so it is blank. But now I'm still asked to type in a password for sudo actions such as installing programms, etc. I know that this belongs to Ubuntu's outrageous security policy (which is why I use Ubuntu in the first place..) but I don't have any password to enter any more!! The old user password is not accepted and anything else (like just hitting enter) doesn't work either. I already tried the recovery mode (root shell) way passwd USER< but it replied that it can't access the password or it has no authority. Thanks in advance for your help!

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• Ubuntu 12.04 x64 - Very slow response and sluggishness

  - by Murphy1138

  Recently updated to 12.04 x64 on my AMD HEX core 4GB system, over the last few days I feel that the overall system is sluggish/laggy , for instance hitting the dash button, the dash opens but the recent activity of files/videos etc is incredibly slow to populate, like wise in Nautilus and browsing my media, the file names are showing up but it takes an age to populate the "thumb" of the video, If I go into Gnome-shell the shell response is a little faster but again clicking on applications there is still a noticeable pause. I have the latest Nvidia Drivers loaded and I have very fast SATA drives, if I reboot into windows 7 the system is so much quicker in its response, I only use windows for games and Ubuntu is my main OS. 10.04/10.10/11.04 was Super quick and this was when the system still had a Duel Core Chip and a worse Nvidia card, 11.10 was pretty snappy, but 12.04 just feels bloated on each system I have installed it on. My hardware is more than up to the task so has anyone got any commands i can run to help diagnose the issue? Anyone else got the same problems? Thanks Murph

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• Ubuntu 12.04 does not start

  - by ferr

  Im using Lenovo G580. I installed Win7 first, two months ago. Now, i want to install Ubuntu 12.04. I used usb for installation. It went very well, but when i was reboot laptop after installation, it started Win7 not Ubuntu or bootloader for choice. LiveUbuntu is working very well. I tried install ubuntu a couple of times from other .iso. I tried recover Grub. When i change "boot" flag in gparted to partition with Ubuntu, BIOS show me error "missing operating system".("boot" flag is optionally on Windows partition c:/). Can it be hardware mistake? Or i did some mistakes?

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• sed problem ....

  - by moata_u

  hello there ... am facing problem in sed command , i was trying write a bash script that do the following : 1. search for the line that contain :@ , 2.then save the line that contained :@ and replace it with new line ....as following : ! /bin/bash echo "Please enter the ip address of you file" read ipnumber find=grep ':@' application.properties # find the line input="connection.url=jdbc\racle\:thin\:@$ipnumber\:1521\:billz" # preparing new line echo sed "s/'${find}'/'${input}'/g" application.properties # replace old with new line **Problem is nothing happen !!!! * I already tried to use "${find}" instead of '${find}'

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• Application of LGPL license on a simple algorithm

  - by georgesl

  The "scope" of the GNU license is troubling me : I know it has been answered many times ( here, here, ... ) but shouldn't we take into consideration the complexity and originality of a code before using GPL license ? I explain : I'm working on a pet project using the DTW algorithm that I have written in C using the pseudo-code given on the wikipedia page . At one point I decided to change it for a C++ implementation ( just for hone my c++ skill ) . After doing so, I've looked for an existing implementation on the web, to compare the "cleanliness" of it, and I found this one : Vectored DTW implementation, which is part of limproved, a C++ library licensed under GPL v3 . Personnally, I don't mind the GNU license because it is a personnal project, which will never led to any kind of commercial purpose, but I wonder if this implementation can abide a company using it to open their code ( and other FOSS permissions ). Theoretically, I think it can ( I may be wrong :p ), but the algorithm in question is so simple (and old) that it should not.

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• Rendering trillions of "atoms" instead of polygons?

  - by Baring

  I just saw a video about what the publishers call the "next major step after the invention of 3D". According to the person speaking in it, they use a huge amount of atoms grouped into clouds instead of polygons, to reach a level of unlimited detail. They tried their best to make the video understandable for persons with no knowledge of any rendering techniques, and therefore or for other purposes left out all details of how their engine works. The level of detail in their video does look quite impressive to me. How is it possible to render scenes using custom atoms instead of polygons on current hardware? (Speed, memory-wise) If this is real, why has nobody else even thought about it so far? I'm, as an OpenGL developer, really baffled by this and would really like to hear what experts have to say. Therefore I also don't want this to look like a cheap advert and will include the link to the video only if requested, in the comments section.

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• Compaq Presario R3000 randomly fails to boot on 11.10, 12.04, 12.10

  - by dlfuller

  I’m trying to figure what to do with random failures to boot. My old HP Presario R3000 with AMD Athlon XP-M sometimes boots, sometimes hangs with a blank screen during boot, and sometimes hangs on shutdown. After a few boot attempts it will finally boot to the GNU GRUB screen where I usually can select Recovery Mode, then select return to a normal boot, and the thing will startup and function normally. The pattern is not repeatable and seemed to start after upgrading from 11.04. Clean installs of 12.04 and 12.10 on newly-formatted hard drives make no difference. If this might be a clue, hangs on shutdown often stop at a line with: “pcmcia_socket pcmcia_socket0: cs: IO port probe 0x3000-0x7fff: excluding 0x3000-0x30ff 0x3400-0x34ff 0x3800-0x38ff 0x3c00-0x3cff”. I did try the “acpi=off” modification from 11.10 randomly fails to boot on Compaq Presario R3000 with no change in these random boot failures. Any suggestions sure appreciated.

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• Desktop in Kubuntu lacks bars and quite everything after trying to apply Plymouth fix for proprietary drivers

  - by Michcioperz

  I'm running Kubuntu 13.10, my computer's graphics card is Nvidia GT 520. I tried to fix that Plymouth's problem with proprietary graphics driver using an old script I found on the internet (it was coded for Natty, now that I think about it I shouldn't have done it). I ran that script and rebooted my computer. First incorrect behaviour I noticed was that Plymouth only displayed its text splash only on 1/4th of the screen, though when I pressed Esc key the logs were displaying correctly. Main problem appeared when I logged in. All my desktop's windows lack menu bar, can't be closed with Alt-F4, and they don't appear on the task bar. I tried fixing it by reinstalling GRUB a few times, purging /etc/grub.d and /boot/grub, but only the text splash issue was fixed. How can I fix that?

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• Dual Boot not recognizing new hard drive

  - by Grove

  I am a complete Linux newb..which will become obvious shortly. The story: I wanted to dual boot with Ubuntu. I already had windows on 1 hard drive (320gb), and I wanted Ubuntu on a 2nd hard drive (2tb). I setup the partitions using the "Something else" option - I left the first hard drive alone, and put a swap and a ext4 partition on the 2nd hard drive. When it asked me where the bootable device was, I put the first hard drive. The problem: Now that Ubuntu is installed and grub lets me pick which os to boot to, I boot to ubuntu JUST FINE. BUT when I go to the home folder and look at devices, the only drive showing is the 320 gb/old hard drive that windows was installed on. I can not see the 2 TB hard drive anywhere. This is strange because I setup the Ubuntu partition to be the 2 TB hard drive and I thought I installed ubunto on that partition. Thank you for your time and patience :)

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• Sound not working

  - by Jason

  I am new to ubuntu, but really enjoy it. I do have one issue with setting it up on my computer. It is a GoBook XR-1 and everything works perfectly except there is no sound. I've searched and tried everything that I can think of, even uninstalling ubuntu and trying Windows to see if the speakers worked. I found out that it wasn't the speakers or any hardware issues. I tried to download the Realtek drivers, but still no success.

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• Settlers-like terrain representation

  - by Olle

  Remember this beauty? I'm playing it now on my old Amiga 1200. My question is: How do you think they represented the terrain, data structure wise? Obviously it's some kind of points, with a height. Or hexagons. And how did they decide which dots were buildable? EDIT: I could rephrase the question to say "how do I achieve this kind of terrain", but I would still only be interested in how to do it on a machine with 1 MB of RAM and a 7 Mhz processor, because this is the machine i currently developing games for. If that seems like a vague or meaningless question to you, that's alright, but I'm still curious if someone has any knowledge about this.

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• Opening programs very slow on ubuntu 12.10

  - by Mislav Blaževic

  When I open any program for first time after boot, it loads VERY slowly (Doesn't matter how long after boot). For example, terminal takes 2-3 seconds, skype and firefox often take much longer. If I close it and open again, it loads in reasonable time (<1 second). I got Intel Core i5-2500K CPU @ 3.30GHz, so it shouldn't be hardware issue... What is causing this? Disk benchmark: Average read time: 115.5 MB/s (100 samples) Average write time: 98.7 MB/s (100 samples) Average access time: 11.79 msec (1000 samples)

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• Wireless connectivity Wifi 7260 on Ubuntu 10.04

  - by user292332

  I am trying to install Wireless networking on Dell Latitude E5440 Wifi 7260- Ubuntu 10.04.(Yes I know it is old- see the complication below) I did get the wired connection working but our classrooms are wireless. I have tried to upgrade to version 12 last year but to my horror during the first week of class the nfs mounts did not work for multiple users. I never thought to test for more then one person at at time!! I have not been able to find a fix for the upgrade so I must remain at 10.04. NFS mounts are a must for student home directory access on the servers. All desktops are 10.04 as are the servers. Does anyone have a solution to the wireless problem in version 10.04/ or the nfs mounts solution in version 12. Thank you so much. Val

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• Using gLabels in 12.04 - How do I put part of text in bold?

  - by MonocleMike

  I am using gLabels to print a page of the same label which is an address that I entered in a text box. I want to put part of it in bold - e.g. the postcode and post town. I can change the whole text but I can't find how to select just part of it. I used to be able to do it on my old system but I can't find where to do it now. I am probably getting senile and it is very simple but please will someone help me.

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• Am I making the right decision to take Information technology/system as my course in college?

  - by 123rainfan

  I am a student who just ended my high school last year. I will be entering college any time between march to August. And.. I am thinking of studying Information technology/System as my course in college. The problem is, I am unsure if this is the right path for me. I don't know if this is what I really want for my future later on! Yes, I do love learning more about computers (prefer software to hardware). But what if I don't find them interesting later on when studying? I'm worried about that as I don't wanna regret later on. To add to that, my knowledge of programming and other software development is actually quite low. Can someone advise me on what should I do? Or tell me more about Information technology (what will I study later on in college and the career path)?

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• Java and Eclipse setup properly, how do I install JOGL or LWJGL?

  - by shadowprotocol

  I have my Java environment installed alongside Eclipse, and I was successfully able to create and run a new project (simple System.out.println("Yay I work!"); I have the OpenGL SuperBible, and I primarily want to code 3D things (I'll take my time using the book to learn how to draw shapes in 3D space, etc..) Can you help me get setup with OpenGL in Java? I dont really need LWJGL, although I WILL make games eventually. I just can't even figure out with all of these terrible (and old) tutorials floating around on the net how to install either JOGL or LWJGL. If you can give me a hand with that, I'd appreciate it. I'd like to feel I contributed by having this page show the answer to the question, so that other poor souls googling for this same information can benefit.

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• 13.10 suspend kills wifi

  - by ser

  i tried to post to this thread Hardware wireless switch has no effect after suspend and 13.10 upgrade for if i understand their question i am having the same problem but the answer option won't work for me and maybe i am not supposed to post there anyway, i dunno lol...ack when i come out of suspend, the wireless is disconnected with the only way to get it to reinitialize/be recognized is to do a full restart. at first i thought it was my gnome shell (for lock screen disappeared there with 13.10) but when i switched to the default ubuntu it's still doing it and it's kinda driving me nuts for i have to reopen all my files and browsers/tabs/windows everytime. i'm only a geekling so i don't know how to show the terminal stuff the above asker shows, but it sounds like the same issue and it only started with 13.10 upgrade a few days ago. any help would be much appreciated!!! thanks so much ser

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• Where can I get the 11.04 kernel .config file?

  - by Oli

  I'm using Maverick with the latest available kernels on kernel.org and building them myself. Until now I've been basing my configuration off the stock Maverick kernel and accepting the make oldconfig defaults. I've been doing this for 3 major releases now so I figure I'm starting to slip behind the current "standard". I would like to re-base my kernels off the new Natty .config file. Is this available somewhere online or do I have to download the whole kernel package and extract it? Edit: I've manually pulled in the config from the latest Natty kernel package and I can confirm that I propbably should have done this sooner. A lot of differences between my old "evolved" config and the Natty default. Now if I could just do this without 20 minutes of hunting and downloading the package so I can re-base in the future.

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• Multiple copies of JBoss acting as one? [migrated]

  - by scphantm

  I have a few ideas how to solve the problem, but one question about jboss clustering. Please, keep in mind these applications were written very poorly, that is why they require so much memory and there is nothing i can do about that right now. So, I have clustered applications on Jboss where the application was small enough to run on one box. Meaning that one machine could handle the load. But, the current problem is that i have been asked to run several systems on the same environment. Our machines are virtuals and due to limited hardware, are restricted to 8 GB RAM, which gives jboss about 7GB to itself. Unfortunately, that isn't enough to run the group of applications. Im constantly getting heap errors and crashes. If i cluster 2 or 3 jboss instances together, can i run applications that consume more resources than a single box can handle?

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• My ethernet connection is not working but it is detected by my computer

  - by smithy545

  I'm setting up an old computer with ubuntu server 12.04. I wiped the drive and went through the installation fine but afterwards the ethernet would not work. It's physically connected to the router and the card is recognized by lspci(SiS 900) but it won't connect at all. I've plugged in and installed the drivers for a wifi adapter and it's worked with the same router. Just so you know I've turned it on and off plenty of times. Any help would be appreciated.

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• How can I paste text by pressing the left and right mouse buttons at the same time?

  - by Badministrator

  I am coming from Ubuntu 10. I just recently upgraded to 12.04 LTS. In 10, I use to be able to cut and paste from Terminal by selecting text, and just pressing my two mouse buttons. In 12.04, I can't seem to do this. I have to highlight text, then right click to copy, then right click to paste. Or, I can do ctrl-shift-c and ctrl-shift-v. Both are okay methods, but not as fast as before. How do I configure Ubuntu to preserve 'old-school' cut and paste?

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• Can't Login to my PC

  - by user68775

  Hope u solve my problem. I am new to Ubuntu. I tried to install Ubuntu 12.04 in my pc which is way old because friends told me that it could be installed in any machine. I dually installed ubuntu along with Windows XP. After installation i get a message "Run ubuntu in low graphics" I gave yes and then i was asked for userid and Password. But i keep getting the same UserID page even though i gave the corrent UserID and Password. Is there any solution you can provide. This is my first experience with Ubuntu.

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• Best way to move site from subdomain to root through cPanel?

  - by Mbbc

  I have an old Wordpress blog hosted on a subdomain (sub.mysite.com) with hundreds of posts. The root domain is actually empty and redirected to the subdomain. Now I want to move the site from the subdomain to the root domain. I found some .htaccess examples like this: RewriteEngine on RewriteCond %{HTTP_HOST} ^sub.example.com$ RewriteRule ^(.*)$ http://example.com/$1 [R=301,L] This redirection seems to work if I clone or move the subdomain site into the root domain but, Is there an easier way? I mean, just like when you redirect from www. to non-www. and you only have one site installation. The site would be kept installed on subdomain folder but it would be accessed from root domain, is it possible?

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• appearance incomplete

  - by user288986

  I'm using 14:04 which is pretty nice. Something wionders me: if I open a window (e.g. Ubuntu Software Centre) I can see SOME items (sometimes nothing) but by hovering the mouse over it it appears - and then disappears again. Sometimes the side mover acts the same way... Maybe it has to do with my hardware: P4, 3 GHz, 2 GB RAM, older graphics board, KVM-switch? There's no difference whether I use Gnome, Ubuntu standard, Ubuntu classic, Ubuntu fallback... Thanks for hints Jens

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• Are my Google Analytics ( 2 domains 1 site) duplicated or unique?

  - by MarcDJay

  We have recently built a new website with a new domain to replace an old website, and on the advice of our IT guys and web dev team have pointed both oldaddress.com's & newaddress.com's a records to the new website. Now, they both share the same google analytics code (UA-12345-1) and as such we have two entries in the Google Analytics dashboard. The problem is I'm still fairly novice with GA and as the reports seem VERY similar (~25k pageviews for each domain), are these figures exclusively for that domain? For example: oldaddress.com 25,400 pageviews newaddress.com 25,600 pageviews Does this mean that in total for this website I have 51,000 pageviews. Hope this is clear enough but let me know if anything needs clarifying. Thanks.

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