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  • What's New in Oracle VM VirtualBox 4.2?

    - by Fat Bloke
    A year is a long time in the IT industry. Since the last VirtualBox feature release, which was a little over a year ago, we've seen: new releases of cool new operating systems, such as Windows 8, ChromeOS, and Mountain Lion; we've seen a myriad of new Linux releases from big Enterprise class distributions like Oracle 6.3, to accessible desktop distros like Ubuntu 12.04 and Fedora 17; and we've also seen the spec of a typical PC or laptop double in power. All of these events have influenced our new VirtualBox version which we're releasing today. Here's how... Powerful hosts  One of the trends we've seen is that as the average host platform becomes more powerful, our users are consistently running more and more vm's. Some of our users have large libraries of vm's of various vintages, whilst others have groups of vm's that are run together as an assembly of the various tiers in a multi-tiered software solution, for example, a database tier, middleware tier, and front-ends.  So we're pleased to unveil a more powerful VirtualBox Manager to address the needs of these users: VM Groups Groups allow you to organize your VM library in a sensible way, e.g.  by platform type, by project, by version, by whatever. To create groups you can drag one VM onto another or select one or more VM's and choose Machine...Group from the menu bar. You can expand and collapse groups to save screen real estate, and you can Enter and Leave a group (think iPad navigation here) by using the right and left arrow keys when groups are selected. But groups are more than passive folders, because you can now also perform operations on groups, rather than all the individual VMs. So if you have a multi-tiered solution you can start the whole stack up with just one click. Autostart Many VirtualBox users run dedicated services in their VMs, for example, running a Wiki. With these types of VM workloads, you really want the VM start up when the host machine boots up. So with 4.2 we've introduced a cross-platform Auto-start mechanism to allow you to treat VMs as host services. Headless VM Launching With VM's such as web servers, wikis, and other types of server-class workloads, the Console of the VM is pretty much redundant. For some time now VirtualBox has offered a separate launch mechanism for these VM's, namely the command-line interface commands VBoxHeadless or VBoxManage startvm ... --type headless commands. But with 4.2 we also allow you launch headless VMs from the Manager. Simply hold down Shift when launching the VM from the Manager.  It's that easy. But how do you stop a headless VM? Well, with 4.2 we allow you to Close the VM from the Manager. (BTW best to use the ACPI Shutdown method which allows the guest VM to close down gracefully.) Easy VM Creation For our expert users, the  New VM Wizard was a little tiresome, so now there's a faster 2-click VM creation mode. Just Hide the description when creating a new VM. Powerful VMs  As the hosts have become more powerful, so are the guests that are running inside them. Here are some of the 4.2 features to accommodate them: Virtual Network Interface Cards  With 4.2, it's now possible to create VMs with up to 36 NICs, when using the ICH9 chipset emulation. But with great power comes great responsibility (didn't Obi-Wan say something similar?), and so we have also introduced bandwidth limiting to prevent a rogue VM stealing the whole pipe. VLAN tagging Some of our users leverage VLANs extensively so we've enhanced the E1000 NICs to support this.  Processor Performance If you are running a CPU which supports Nested Paging (aka EPT in the Intel world) such as most of the Core i5 and i7 CPUs, or are running an AMD Bulldozer or later, you should see some performance improvements from our work with these processors. And while we're talking Processors, we've added support for some of the more modern VIA CPUs too. Powerful Automation Because VirtualBox runs atop a fully blown operating system, it makes sense to leverage the capabilities of the host to run scripts that can drive the guest VMs. Guest Automation was introduced in a prior release but with 4.2 we've revamped the APIs to allow a richer and more powerful set of operations to be executed by the guest. Check out the IGuest APIs in the VirtualBox Programming Guide and Reference (SDK). Powerful Platforms  All the hardcore engineering that has gone into 4.2 has been done for a purpose and that is to deliver a fast and powerful engine that can run almost any x86 OS because of the integrity of the virtualization. So we're pleased to add support for these platforms: Mac OS X "Mountain Lion"  Windows 8 Windows Server 2012 Ubuntu 12.04 (“Precise Pangolin”) Fedora 17 Oracle Linux 6.3  Here's the proof: We don't have time to go into the myriad of smaller improvements such as support for burning audio CDs from a guest, bi-directional clipboard control,  drag-and-drop of files into Linux guests, etc. so we'll leave that as an exercise for the user as soon as you've downloaded from the Oracle or community site and taken a peek at the User Guide. So all in all, a pretty solid release, one that we hope you'll enjoy discovering. - FB 

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  • How to reinstall Windows 8 after accidentally wiping it off my HDD

    - by user286538
    So about half an hour ago I decided to try out Ubuntu and in the process of doing so, my hard drive got wiped. My Windows 8 installation, and all the files with it are gone. Since my laptop came preinstalled with Windows 8, I don't have a disk or anything to use to install it again. I guess I'll have to install all of my things again, but first, I just want to know how to get Windows 8 back(will the serial number on the bottom of my laptop work?) so I can get back to an OS I'm familiar with. Any explanations would be great. Please don't be too technical though.

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  • Hardware refresh of Solaris 10 systems? Try this!

    - by mgerdts
    I've been seeing quite an uptick in the people that are wanting to install Solaris 11 when they are doing hardware refreshes.  I applaud that effort - Solaris 11 (and 11.1) have great improvements that advance the state of the art and make the best use of the latest hardware. Sometimes, however, you really don't want to disturb the OS or upgrade to the a later version of an application that is certified with Solaris 11.  That's a great use of Solaris 10 Zones.  If you are already using Solaris Cluster, or would like to have more protection as you put more eggs in an ever growing basket, check out solaris10 Brand Zone Clusters.

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  • Windows 8 on my new i7 Macbook Pro

    - by Bob Hardister
    Using bootcamp I installed Windows 8 on my new Macbook Pro 15" (not a retina screen version), which has OS X 10.8.2, 2.6 Ghz Core i7 with 8 GB RAM.  I followed the simple procedure outlined here. The only problem I had was the wireless device driver wasn't provided. I had to find and download it myself. Even so it only provided 5G not 2G protocol support. I downloaded a Broadcom driver.   I was able to enable the Hyper-V features on Windows 8 and look forward to using VMs. So far so good :)

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  • Vim and emacs usage/use case/user statistics

    - by G. Kayaalp
    I wonder if there are statistical documents/research based on use of the two major text editors, in which amount of usage is compared to use case, be it programming language, industry, user age, OS and/or many other things I can't think of now. I don't need this information for an assignment/homework or something, I'm just curious about it. I've been searching this for some time, not very intensively, and only thing I have found was this: Emacs user base size Lastly, I want to denote that I'm not looking for estimations. I'm not asking if one editor is better that the other, nor I am expecting help on choice between them. I'm not asking for opinions.

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  • Toutes les raisons sont-elles réunies pour migrer vers Windows 7 ? Oui, répond Microsoft qui met des

    Toutes les raisons sont-elles réunies pour migrer vers Windows 7 ? Oui, répond Microsoft qui met des aides en ligne pour les professionnels Pour Microsoft, toutes les raisons sont réunies pour penser dès aujourd'hui à passer à Windows 7. Outre le fait qu'analyser à l'avance sa situation permet d'éviter les futurs problèmes d'une migration décidée à la hâte, les signes de la fin annoncée de Windows XP se multiplient. On l'oublie peut-être trop souvent, mais Windows XP est un OS vieux de déjà 9 ans qui va bientôt atteindre la limite des 10 années traditionnelles de support fournies par Microsoft.

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  • Adobe annonce la disponibilité du runtime AIR 2, une solution multiplateforme encore plus performant

    Mise à jour du 14.06.2010 par Katleen Adobe annonce la disponibilité du runtime AIR 2, une solution multiplateforme encore plus performante Adobe vient de présenter la version 2 de son moteur AIR, qui permet à des applications écrites avec différents langages (HTML, CSS, JavaScript, ActionScript d'Adobe ; une version récente du webkit offre le support de certaines parties des CSS3 et de certaines fonctions HTML5) de fonctionner à l'identique sur Mac OS X, Windows et Linux (et même Android). Une solution multiplateforme dont le moteur JavaScript serait deux fois plus rapide, et qui réduirait de 30% la consommation mémoire des applications AIR s'appuyant sur le framework flex et tournant avec cette ver...

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  • No GUI before login on Ubuntu 14.04

    - by Pablo Chinchilla
    After I installed Ubuntu 14.04 as the only OS on my computer on nomodeset to install the Nvidia drivers for my video card. I installed it and all is working properly. The only problem that I have is that when I turn on my compurter I only see command lines instead of the Ubuntu logo. After that the login screen works in a proper way even with the GUI. I only want to get the Ubuntu logo instead of the command lines. PS: when I turn off my computer, the same thing is repeated.

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  • How do I get drivers working for an Nvidia GT560i on 12.04?

    - by keepitsimpleengineer
    I been using a test Xubuntu 12.04 LTS on my 64 bit workstation, because Ubuntu has dropped support for the nvidia graphic adapters my 10.04 LTS and I haven't been able to get them working. Now update manager has upgraded the kernel from 3.2.0-30-generic to 3.2.0-31-generic, and failed to produce a working nvidia module that the X server can load. Fortunately, when launching the 3.2.0-30-generic kernel, I still have use of the X server. Does anybody know a work-around or fix for this? I'm really worried, this is the last working Ubuntu distribution OS on the computer and I don't want to give up on Ubuntu. Details of problem here.

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  • Installing multi-boot Linux system

    - by user94924
    I have a dual (XP/Linux) boot Compaq Presario S4500UK with a couple of spare partitions on the boot drive which I want to use for testing different Linux distros/configs before installing them on "live" machines. I tried this with Oneiric which worked fine until I came to uninstalling the test system. Fortunately Oneiric uses Grub2 and so redirecting the bootloader to work from the original Linux partition was a piece of cake - if a bit annoying. I now need to do some tests on Hardy and DSL (Damned Small Linux), neither of which use Grub2. Question: Is it possible to install a test operating system without adding/replacing the bootloader (ie so I can still use Grub2 from the original partition with its nice interface and recovery facilities)? Is there another way of uninstalling/decommisioning a test OS which doesn't trash the boot loader? (The only way I know to do this is by deleting/reformatting the partition which takes with it the bootloader which is in that partition). Any help would be much appreciated. Tks jg1

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  • Unable to boot from new SSD after installing from USB

    - by user73725
    I'm using a new SSD with nothing on it. It's installed via USB drive, and boots from USB as well. While in Ubuntu I can see the SSD and other devices. When I install from the desktop (have tried from the boot screen as well), system restarts. It takes me to the boot screen, select boot from first hard disk, nothing, goes right back to boot screen. When I take the USB out, it hangs on "Verifing DMI." If I boot onto the USB I can see the correct files located in the SSD. I have a basic knowledge of computers. Give me any thing you think would help. No other OS's are loaded. Gigabyte ga-k8n-sli 1GB RAM AMD Athlon 64 x2 dual core 3800+ OCZ SSD Agility 3 120GB

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  • Windows 8 : pourquoi s'arrêter à l'UI fait louper l'essentiel, au CeBIT Microsoft montre qu'il parie sur un changement de paradigme

    Windows 8 : pourquoi s'arrêter à l'UI fait louper l'essentiel Au CeBIT Microsoft va beaucoup plus loin et parie sur un changement de paradigme Au risque d'enfoncer des portes ouvertes, rappelons qu'une beta reste une beta. Un produit en cours d'élaboration. Par définition imparfait ou mi-cuit comme disent les anglo-saxons (« half cooked »). En se concentrant exclusivement sur les détails de l'UI de la Consumer Preview de Windows 8 (chose importante par ailleurs), beaucoup de testeurs sont passés à côté de l'essentiel : avec cet OS, Microsoft amorce un virage radical et parie sur un changement de paradigme. Un changement profond de l...

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  • TX 1000 Nvidia driver problem

    - by Marduk
    Hello i installed the news ubuntu the other day and istalled all the drivers and then restart the laptop. then i get the login screen with no problem then when i login the black screen in about 10 mins a window popup saying that the application compiz has closed unexpectedly i relunch the app. and then it happens again. i have uninstalled nvidia driver then restarted and the OS works fine.. tryed older driver and still the same problem. anyone out there can help would be great.

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  • Dell Latitude D830 DVD Drive Not Recognized

    - by DragonFire
    Unlike some people who have issues with the video or WiFi drivers, I suffer from not being able to use the DVD drive on this laptop. Upon POST, the BIOS sees it and I am able to open the tray as well; however, once the system starts to load up Ubuntu or other distros (Debian and Linux Mint), I lose all functionality. Plus, I don't see it listed as a device in the OS. I've poured over the internet the past few days trying to see if anyone else has the issue, or did and found a solution but sadly, nothing anywhere so far. So, I thought I would ask the community here and see what you all think. Worse case scenario, I have some dead weight to a nice little machine. Thanks! PS I honestly think Linux doesn't like the IDE interface the disc drive has.

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  • Yahoo! passe en open source Mojito, son framework JavaScript MVC pour les applications Web multiplateformes

    Yahoo! vient de rendre Open Source son framework web Mojito. L'open source attire de plus en plus les entreprises IT. Après Microsoft et Facebook qui ont rendu certains de leurs projets open source en l'espace de quelques semaines, c'est au tour de Yahoo! de suivre le même chemin. La firme a rendu public sous une licence open source Mojito, un framework Web qui rend plus rapide le développement d'applications Web multiplateforme, et notamment mobiles (tout OS). Mojito fait partie d'une série de "cadres applicatifs" JavaScript développé et utilisé en interne,

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  • secure boot windows 8 issues it hates ubuntu :(

    - by Steven Brown
    im running into issues with windows 8. ok so i disabled secure boot from my laptop. i tell it to launch from my USB with ubuntu installed on it and it wont boot. just simply light my screen and darken it. iv google the fire out of this and no use so im asking for help. im useing ubuntu 13.04. more details: well i have tryed to boot another OS (zorin) and it hates it too. i dont know why my secure boot wont shut off. if it helps i have a HP 2000.

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  • Help! Installer crashing

    - by Mike
    I had ubuntu 12.04 installed on a Satellite l635. I wanted to start over with a fresh install because I had experimented with a bunch of different things, and computer was getting glitchy and random freezes. I used the same iso I used for original install, and it keeps say the installer crashed with a erron5 input/output error. Tried an older iso for 11.10 I had used in the past with same issue... To see if it was disc or computer (not a great idea) I tried the 12.04 iso on another laptop. Now I have 2 laptops with no os. Both discs however live boot on both systems. PLEASE HELP! I've searched forums and can't find the same problem.

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  • L'administration américaine s'intéresse à BlackBerry 10 après un virage vers l'iPhone, l'année 2013 sera-t-elle celle de RIM ?

    RIM : l'administration américaine s'intéresse à BlackBerry 10 Après avoir fait un virage vers l'iPhone, l'année 2013 sera-t-elle celle du constructeur canadien ? L'année 2013 sera-t-elle celle du renouveau pour RIM ? Sans jouer les oracles, l'arrivée de BlackBerry 10 et de sa nouvelle plateforme de développement sont des signes encourageants pour le Canadien. Depuis hier, un autre signe va dans le même sens. Alors que l'administration américaine avait décidé de s'ouvrir à l'iPhone au détriment des seuls BlackBerry (souvenez-vous, le téléphone était par exemple le préféré de Barack Obama lors de sa première élection), voilà que la nouvelle version de l'OS et ses fonctionnali...

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  • The architecture and technologies to use for a secure, fast, reliable and easily scalable web application

    - by DSoul
    ^ For actual questions, skip to the lists down below I understand, that his is a vague topic, but please, before you turn the other way and disregard me, hear me out. I am currently doing research for a web application(I don't know if application is the correct word for it, but I will proceed w/ that for now), that one day might need to be everything mentioned in the title. I am bound by nothing. That means that every language, OS and framework is acceptable, but only if it proves it's usefulness. And if you are going to say, that scalability and speed depend on the code I write for this application, then I agree, but I am just trying to find something, that wouldn't stand in my way later on. I have done quite a bit reading on this subject, but I still don't have a clear picture, to what suits my needs, so I come to you, StackOverflow, to give me directions. I know you all must be wondering what I'm building, but I assure you, that it doesn't matter. I have heard of 12 factor app though, if you have any similar guidelines or what is, to suggest the please, go ahead. For the sake of keeping your answers as open as possible, I'm not gonna provide you my experience regarding anything written in this question. ^ Skippers, start here First off - the weights of the requirements are probably something like that (on a scale of 10): Security - 10 Speed - 5 Reliability (concurrency) - 7.5 Scalability - 10 Speed and concurrency are not a top priority, in the sense, that the program can be CPU intensive, and therefore slow, and only accept a not-that-high number of concurrent users, but both of these factors must be improvable by scaling the system Anyway, here are my questions: How many layers should the application have, so it would be future-proof and could best fulfill the aforementioned requirements? For now, what I have in mind is the most common version: Completely separated front end, that might be a web page or an MMI application or even both. Some middle-ware handling communication between the front and the back end. This is probably a server that communicates w/ the front end via HTTP. How the communication w/ the back end should be handled is probably dependent on the back end. The back end. Something that handles data through resources like DB and etc. and does various computations w/ the data. This, as the highest priority part of the software, must be easily spread to multiple computers later on and have no known security holes. I think ideally the middle-ware should send a request to a queue from where one of the back end processes takes this request, chops it up to smaller parts and buts these parts of the request back onto the same queue as the initial request, after what these parts will be then handled by other back end processes. Something *map-reduce*y, so to say. What frameworks, languages and etc. should these layers use? The technologies used here are not that important at this moment, you can ignore this part for now I've been pointed to node.js for this part. Do you guys know any better alternatives, or have any reasons why I should (not) use node.js for this particular job. I actually have no good idea, what to use for this job, there are too many options out there, so please direct me. This part (and the 2. one also, I think) depend a lot on the OS, so suggest any OSs alongside w/ the technologies/frameworks. Initially, all computers (or 1 for starters) hosting the back end are going to be virtual machines. Please do give suggestions to any part of the question, that you feel you have comprehensive knowledge and/or experience of. And also, point out if you feel that any part of the current set-up means an instant (or even distant) failure or if I missed a very important aspect to consider. I'm not looking for a definitive answer for how to achieve my goals, because there certainly isn't one, for I haven't provided you w/ all the required information. I'm just looking for recommendations and directions on what to look into. Also, bare in mind, that this isn't something that I have to get done quickly, to sell and let it be re-written by the new owner (which, I've been told for multiple times, is what I should aim for). I have all the time in the world and I really just want to learn doing something really high-end. Also, excuse me if my language isn't the best, I'm not a native. Anyway. Thanks in advance to anyone, who takes the time to help me out here. PS. When I do seem to come up w/ a good architecture/design for this project, I will certainly make it an open project and keep you guys up to date w/ it's development. As in what you could have told me earlier and etc. For obvious reasons the very same question got closed on SO, but could you guys still help me?.

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  • Upgrade to Ubuntu 13.10 disabled track pad, brightness, sound on Lenovo Z570

    - by Vizir
    I just upgraded to Ubuntu 13.10 using Ubuntu's software update. It seemed to go all right, however after the system restarted and booted up Ubuntu 13.10, it began experiencing several problems. Some of them were due to expected conflicts with the updated OS, however right now I cannot figure out why certain hardware functions are now "broken" and how to fix them. As far as I can tell, these are the sound (permanently muted), mic (picks up no sound), brightness (set at maximum brightness regardless of using keyboard shortcuts or moving the screen brightness slider) and trackpad (mouse does not move, however plugged-in USB mouse does) This sounds to me like a driver issue, however I cannot figure out how to re-enable my drivers, re-install them, or whatever I have to do here. This did not happen durring my upgrades from 12.04 to 12.10, or 12.10 to 13.04, so I'm at a total loss as to why this happened this time around. My computer is a Lenovo Z570, dual-booting Ubuntu and Windows 7 from GRUB 2. Windows is working fine as far as I can tell.

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  • Windows Embedded Compact 7 in Padua

    - by Valter Minute
    Yesterday I did a presentation about Windows CE at the University of Padua Even if the picture seems to suggest that I just showed and empty slide, I illustrated the new features of the OS and did a quick demo of Silverlight for Windows Embedded on Windows Embedded Compact 7 (I’ve to get used to this new name), showing the new tools that provide a better integration between Expression Blend and Visual Studio for the development of Silverlight applications (I hope to be able to write more on this topic soon!). The Operating System was running on some real hardware (TI OMAP3530 evaluation board) and many people had a chance to interact with the new customizable shell. Most of the 60 people attending were still awake at the end of the one hour and a half session, and some of them even asked questions! I would like to thank all the people attending and all the people of Arrow, Fortech Embedded Labs and the University of Padua that made this event possible and provide me the tool and the time to do this presentation. Technorati Tags: Windows Embedded Compact 7

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  • Installing Ubuntu 13.10 'Saucy Salamander' on L75D-A7280 hangs on a black screen

    - by Riven
    Trying to get Ubuntu 13.10 to work and it will not. Seen that somebody is having a similar problem, some things failing then it just hangs on a black screen (after pressing F1 to see what it's doing). My system is a Toshiba Satellite L75D-A7280, and I have tried two different files that I had downloaded from Ubuntu.com with no luck. My laptop came with Windows 8 and following the dual-boot directions Ubuntu 12.04 was installed and worked perfect, except for completely obliterating Windows 8 and voiding my warranty, meaning neither Toshiba nor the retail center I bought my system from can help me legally, besides giving advice... nor can I return it to get a non-UEFI based system. I really need to figure this out, I am a student and need my laptop working properly with any OS I put on it. Will continue searching for any information I can find.

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  • Windows 8 : réduction des redémarrages automatiques pour le service Windows Update

    Windows 8 : réduction des redémarrages automatiques après les mises à jour Mise à jour du 15/11/11 Windows 8 apportera une révision majeure du service Windows Update qui sera désormais moins intrusif, avec des redémarrages centralisés. Microsoft, sur le blog consacré à l'OS, présente les améliorations apportées au service Windows Update utilisé pour mettre à jour plus de 350 millions de PC sous Windows 7 et plus de 800 millions de dispositifs Windows en général, selon la firme. Avec Windows 8, les redémarrages pour les mises à jour seront effectués une seule fois au début de chaque mois, après la publication du Patch Tuesday qui survient le...

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  • Minecraft program frame rate is very slow

    - by Cade
    I have recently downloaded Minecraft to Ubuntu 12.04. It launches and plays successfully, however- the frame rates for the game are extremely slow. They never go past 9 fps and usually drop below 3 fps. I have been a Windows XP user for years and have just recently switched to Ubuntu, so I'm not an expert with this OS. My video card is a Diamond Stealth s60 with Radeon 7000. I don't know what other information you guys need but if you ask for it, and would please tell me how to get to it, I will tell you as soon as I can. Thanks for your help.

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  • MonoTouch supporte iOS 6, Xamarin sort la version 6 de son environnement de développement d'applications natives iOS en C#

    MonoTouch supporte iOS 6 Xamarin sort la version 6 de son environnement de développement d'applications natives iOS en C# Xamarin vient de publier une mise à jour de MonoTouch, son environnement de développement pour mobile multiplateforme. MonoTouch est un kit de développement logiciel qui permet de créer des applications mobiles natives pour iOS en utilisant le langage .NET C# sur le système d'exploitation Mac OS X. La même base de code C# utilisée pour créer des applications iOS avec MonoTouch peut également être utilisée avec la famille des outils Mono pour développer des applications Android et Windows Phone. La version 6 de MonoTouch apporte comme nouveauté pha...

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