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• Ubuntu 12.04 won't boot from USB

  - by user986871

  I downloaded Ubuntu 12.04, then using the tool Startup Disk Creator i made the live usb. I checked that it's bootable Device Boot Start End Blocks Id System /dev/sdb1 * 62 15635593 7817766 c W95 FAT32 (LBA) Now on my lap top it boots nicely, but on two other machines that don't have any installation of ubuntu(no Grub) it doesn't boot. I changed the booting order so that USB is before HDD. So i think i did everything i know, but no luck. How can i use this USB drive on other devices that don't have any previous ubuntu installation.

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• Less known Solaris features: pwait

  - by user13366125

  This is a nifty small tool that i'm using quite often in scripts that stop something and do some tasks afterwards and i don't want to hassle around with the contract file system. It's not a cool feature, but it's useful and relatively less known. An example: As i wrote long ago, you should never use kill -9 because often the normal kill is intercepted by the application and it starts to do some clean up tasks first before really stopping the process. So just because kill has returned, it doesn't imply that the process is away. How do you wait for process to disappear? (more)

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• 12.04 install now just blank screen

  - by bull

  I have attempted to install a new copy of 12.04 using usb stick instead of using download manager. Everything went fine while using usb stick until I restarted after installation was complete. Then, I got the screen with cursor and 4 lines of script with the first line saying "could not write to bytes: broken pipes". I have used several versions of Ubuntu from 6.04, but this one seems broken. I have tried nouveau.blacklist and many other suggestions to no luck. I am using hp pavilion m7790y dual core processor system, with nvidia 7600gt video card, 4gb ram and two hard drives with Vista on one and fresh install of Ubuntu 12.04 on other. I'm still looking for help to solve this problem. Thanks in advance.

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• Building a touch event driven UI from scratch: what algorithms or data types?

  - by user1717079

  I have a touch display. As input I can receive the coordinates and how many touch points are in use, basically I just get an X,Y couple for every touch event/activated point at a customizable rate. I need to start from this and build my own callback system to achieve something like Object.onUp().doSomething() meaning that I would like to abstract just the detection of some particular movements and not having to deal with raw data: what algorithms can be useful in this case? What statements? Is there some C++ library that I can dissect to get some useful info? Would you suggest the use of an heuristic algorithm?

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• how do I upload photos from shotwell?

  - by Mags

  I only started using Ubuntu a couple months ago. I've been able to get pictures from my camera onto the machine. The system is very different for me and I'm trying to work it out on my own, but I have a homework assignment that requires me to upload JPG files of photos I take and I'm having a problem. When I click the button on the page to choose a file, I go into the different photo files and nothing shows up, but the screen where files would be turns a very faint orange, just a tint. I've tried putting the named photos on my desktop, but the upload screen doesn't recognize it at all. How can I use this software to upload my pictures? Thanks.

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• Sécurité : Patch Tuesday léger pour septembre, la prochaine mise à jour invalidera les certificats signés avec des clés RSA courtes

  Sécurité : Microsoft annonce un Patch Tuesday léger pour septembre la prochaine mise à jour invalidera les certificats signés avec des clés RSA courtes Le Patch Tuesday survient le deuxième mardi de chaque mois ; Microsoft publie des correctifs de sécurité à destination de ses clients. Les bulletins sont qualifiés Faible, Modéré, Important ou Critique. Pour le mois de septembre, cette mise à jour de sécurité sera très légère avec seulement deux bulletins de sécurité qualifiés d'importants pour l'environnement de développement Visual Studio et l'outil d'administration et de déploiement de logiciels System Center Configuration Manager. Les bulletins corrigent des vulnérabilités pouv...

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• Ubuntu 12.10 doesn't boot (installed with wubi)

  - by Luna Kiyiya

  Quick and simple, my ubuntu doesn't want to load after installing with ubuntu. Starting the computer, at the screen to choose your operative system, first shows an error that windows failed to start, and later asks me to choose between ubuntu and windows. If I choose ubuntu, the same error happens again and I return to the same screen. If I choose windows, windows just starts normally as it was doing before I installed it. How can I solve this?? Thank you for your attention... I really need some help :)

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• How should I design my website to allow posterity to edit?

  - by SSumner

  I'm building a website for a student organization I am involved in at my college. Most of the site will be static - i.e. won't change from year-to-year, but certain pieces will. I am high-tech, but most of the others aren't, and I am graduating in the spring. So how should I go about building the website so as to allow those that take over in subsequent years to edit information? Examples: Events: I already plan on using a Google calendar for this Officers: There will be profiles/pictures for all the officers on the web page Connections: Partnerships with other organizations that we have currently, but may not in future, or may add more in future Should I use some form of CMS (Content Management System)? If so, how restrictive are they (e.g. Drupal) to what you can build and then how easy is it to edit. What other ways could I make a very nice-looking website but allow certain pieces to be edited later?

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• "Adding Esperanto circumflexes (supersigno)" option has no effect

  - by Gardel

  I'm used to use the keyboard layout option to type the accentuated characters in Esperanto. This option is in System Settings Keyboard Layout Options Adding Esperanto circumflexes (supersigno) To the corresponding key in a Qwerty keyboard. It worked great but since I upgraded to Ubuntu 12.04, this option has no effect. I'm using Ubuntu in French with the keyboard layout French (variant) and Gnome-shell. I tested on another computer with Unity and there is the same issue. Is it a known issue? I did not find anything about it…

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• Ubuntu 14.10 no GUI or term login

  - by Lito

  I have updated yesterday my Ubuntu 14.10 installation with apt-get dist-upgrade. I was working all afternoon and after that I have rebooted computer. Once done it, lightdm doesn't starts (only gnome logo) and I can not view any of Ctrl + Shift + [1-6] terminals (cursor is blinking). I have read a lot of posts with no success: nividia/intel conflicts (I have a laptop with an Intel graphic card) I have enabled nomodeset and tried all this options My computer boots to a black screen, what options do I have to fix it? I have repaired grub I can load recovery/livecd/windows and mount partitions and network without problem I have all packages and system updated Here my logs. X11 not shows any error or problem, is loading all needed drivers without problem. How can I raise the level of debug? Best regards.

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• How to make Classic ASP interesting if you are stuck with it?

  - by reno812

  I used to work on a really small outsourcing company (4 programmers and the boss), then when the stress and the frequent long shifts made the situation unbearable I made the switch to a better paid job with a more relaxed schedule that allows me some more free time. The problem, however, is that for the most part, everything is coded in Classic ASP that interfaces with a custom made C++ queueing system that stores everything in AS400 systems. My boss used to be one of the developers that made the initial efforts towards this, and naturally won't ever approve a switch to another languages / technologies despite the increasing difficulty that represents developing today business needs with yesterday tools. I'm pretty much stuck coding with Classic ASP in the foreseeable future, and I'm struggling to find ways to make it at least interesting, as I used to work with .NET and Java previously, and I feel like I'm going backwards... Any advice?

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• How to fix “A deployment or retraction is already under way for the solution “*.wsp”, and only one deployment or retraction at a time is supported”

  - by ybbest

  I faced this issue when I try to deploy a solution and it failed initially due to SharePoint 2010 Administration service is not started. I then started the service and redeploy the solution; however I face the above issue. To fix it, you need to cancel the current deployment then redeploy the solution. Problem: Solution: To fix it, you need to cancel the current solution deployment. Go to CAà System Settings àManage farm solutions and then cancel the deployment. Next, you can redeployment your solution.

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• How do you diagnose constant crashing issues?

  - by P102

  My recent installation 10.10 on my laptop keeps freezing/crashing on start-up after working perfectly for one day. The system just freezes, like a screnshot, and a restart is required. It happens directly after login or just as any application is selected. Nothing new has been installed. I have just moved from XP so I would be very grateful if some one could please explain to me, as simply as possible, how to do the following... How to diagnose the problem so it can be fixed, remember it may have to be before the log in. all help is greatly appreciated.

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• From the Coalface - 2 - Work as hard as you can to be as lazy as you can

  - by TATWORTH

  On one project, the standard build involved building the database from scratch producing a build log that was about 100,000 lines long.  Manually paging throught this log took hours and it was very easy to miss any errors. The solution was to write a filter that read the log file and output a summary file with each output line pepended with the line number in the original file. Sucessive iterations eliminated more noise lines. Diagnostic displays required escaping. The final output was just a few hundred lines long and the errors were easy to spot. The filter program took less time to to write than one manual pass reading the log file.  The utility digested the log file in about 1 second. Now database build errors could be identified quickly instead of after hours of manual examination or lengthy system testing. A few minutes consideration of the task led to a tremendous improvement in quality.

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• What makes Java so suitable for writing NoSQL Databases

  - by good_computer

  Looking at this page that aggregates the current NoSQL landscape, one can see that the majority of these projects are written in Java. Databases are complex systems software dealing with the file system, and so C/C++ would be a better choice than Java for this. (that's my thinking which might be flawed) Secondly, databases deal with transferring large amounts of data from disk to RAM -- which they call a working set. The JVM takes non-trivial amount of RAM for it's own purpose -- so it would be more efficient to use a platform that leaves lots of memory for data instead of hogging it for its own operations. The major relational databases are ALL written in C/C++ MySQL C, C++ Oracle Assembler, C, C++ SQL Server C++ PostgreSQL C SQLite C So what makes Java so popular in NoSQL world.

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• Setting folder permission so it isn't deletable, but everything else is allowed

  - by user10324

  I want to set permissions to a folder such that, when I'm normally logged in (meaning not as root), this folder isn't deletable, but I can still change the name of this folder and move in around in my system ? IS this possible and if yes, how to set the permission ? I already tried different combinations for the permissions but couldn't figure out how to do it. Also (side question), if some folder hast some permission set and I copy this folder, along with its contents (assuming I am allowed to read it) to a memory, are these permission preserved ? I suppose not, since under Windows I could delete the folder on the stick, even if under Ubuntu it isn't allowed to delete it...

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• Drag and Drop Team Selection

  - by davidjwest

  I have a Fantasy F1 Website, currently users select their teams using dropdown menus. It works OK but isn't as user friendly as I would like. I would like to implement a drag and drop type of system, there's jQuery code out there that would go part of the way to allowing me to do this: http://jqueryui.com/demos/draggable/ But I am not sure about how to integrate that into PHP and MySQL, my jQuery skills are limited! I'd also need to stop them spending more than a certain amount of money, each driver has a value and the teams can only spend a certain amount of money. There's also limits for example you can only pick a driver once, but you can have three different drivers. Finally, how would you decide that the user had picked their team, I don't want a submit button as that kind of defeats the object of the exercise! Thanks for any advice, I don't expect anyone to write the code for me but some pointers would be greatly appreciated.

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• No panels at all after upgrading from 10.04 to 12.04

  - by user86330

  After upgrading to 12.4 from 10.4 on an AMD64 the situation is as follows: After booting I see the Xubuntu logo splash screen and when I log in I get an error that there is a system crash somewhere (it suggest to click on the notification icon, but no info appears then). FInally I can only see my initial 10.04 Desktop but I have no panels at all, so I can only click on my Desktop objects. Question: Will a clean re intall solve the problem? In such case will my multi partition configuration (Vista+XP+ubuntu partitions) be affected?

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• Automatically delete files after they expire

  - by Auxiliary

  I've got this idea for some time and I was wondering if anyone has seen such a feature/app in any operating system and if you haven't, what do you think about it. Where do you think I should begin? The idea is simple. I think we all have those files that are made and probably used for a few days and then are left on our disk and we never delete them or even check to see if we need them again. It'd be cool if you could right click on a file and click on "Expire in.. 3 days" for example. And the file gets deleted after 3 days. I have a great need for this and maybe some people will find it useful. I was thinking of writing a script and use the Nautilus Action project in GNOME for a start.

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• New .Net Authentication in 4.5.1

  - by Aligned

  Originally posted on: http://geekswithblogs.net/Aligned/archive/2013/11/05/new-.net-authentication-in-4.5.1.aspxThere has been a lot of traffic on my post about Simple Membership that came with the File new Project MVC 4 in 2012. I was reading the release notes for Visual Studio 2013 and .Net 4.5.1 and it mentioned a new/updated Authentication approach. “ASP.NET Identity is the new membership system for ASP.NET applications. ASP.NET Identity makes it easy to integrate user-specific profile data with application data. ASP.NET Identity also allows you to choose the persistence model for user profiles in your application. You can store the data in a SQL Server database or another data store, including NoSQL data stores such as Windows Azure Storage Tables” There’s a great page on the asp.net site that gives an introduction, overview, how to use it, and how to migrate to it. I won’t be doing a new project for awhile at work, but I’ll definitely be looking into this more when I get the time.

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• How do I install the NVIDIA driver for a GeForce 6200?

  - by 2d4skt

  I have been recently trying to find a solution for this on the web but did not find something useful or accurate for Ubuntu 11.10. I also consulted the NVIDIA help, but things there did not work for me. I installed the additional drivers from system settings but they are not fully compatible with my GeForce 6200. First I tried finding how to stop the X server. I succeeded, but another problem was the nouveau kernel. This is really frustrating. Can anybody tell me an accurate and authentic way to install NVIDIA drivers?

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• unresposive cursor

  - by user289294

  Running Lucid. Computer worked fine last night, went to bed and found the following problem this morning: (so no hard or software changes) Computer boots up, screen displays normally; date & time correct, background normal, toolbars OK, everything looks normal. Cursor moves round screen in the traditional manner but clicking produces nothing, not left, right or centre. Nothing will open. Tried restarting, using different USB ports and a different mouse. Have reduced system to minimum; monitor keyboard mouse only. Does anyone have a suggestion? Thanks in advance, David D

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• Resource Managers - Are they any good?

  - by The Communist Duck

  Hey. I've seen many a time in source code, things like this [well, this is more of a pseudo C++ idea of mine] type defshared_ptr ResourcePtr;// for ease ResourcePtr sound1 = resourceManager.Get("boom.ogg"); sound1-Play(); ResourcePtr sprite = resourceManager.Get("sprite.png"); I was just wondering how useful a class like this was, something that: Loaded media files Stored them in memory Did this at the start of a level - loading screen. Cleaned up Rather than having a system of: Resources are held by entities only, or loose. Responsible for own load into memory. The first is a 'manager' as such; something I feel indicates it's wrong to use. However, it allows for something like a vector of resource names to be passed, rather than having to scramble around finding everything that needs to be loaded.

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• Distinguishing between sets of status reports

  - by user1769486

  I am working on an internal database monitoring system and am at a point where I sort of hit the wall in terms of application design. Basically I have an extensible plugin architecture where I shall have an OK, a warning or an error upon running a db verification. My first question whether it is sufficient to have only one status reported with an optional status message or provide the ability to have more than one returned (with attached messages) and then calculate an aggregated overall status. In particular in the latter case my second issue would be how to distinguish between two verification reports with the same status code (as it can come from different triggers). I would need to do this to see whether some change happened between the current and last verification. I could simply have string comparisons of the attached status messages mentioned above but that does not seem very reliable.

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• Clean install of 12.04 won't boot from HDD

  - by MarchingKazoo

  Downloaded 12.04.2. Made CD. Machine boots from CD as expected. Installed onto HD. Upon reboot, "Read error" message appears. Upon booting from CD, the HD appears as expected: One partition for Ubuntu, taking up about 12 gig, the rest empty. Lather, rinse, repeat five times. Results of "sudo fdisk -l": Disk /dev/sda: 200.0 GB, 200049647616 bytes 255 heads, 63 sectors/track, 24321 cylinders, total 390721968 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000dfa3e Device Boot Start End Blocks Id System /dev/sda1 * 2048 386596863 193297408 83 Linux /dev/sda2 386598910 390721535 2061313 5 Extended /dev/sda5 386598912 390721535 2061312 82 Linux swap / Solaris Should this be complicate? Seems no.

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