PUBLIC MARKS with tag "community ubuntu"

Overview Sun Microsystems have developed Java, which is many things depending on who you ask. It is a language, and an execution environment and probably many more things. On this page Java refers to the software that executes programs compiled to Java byte codes (akin to machine language). Be aware of the Java trap. Although keep in mind that with the GPL licensing of the Sun Java implementation the Java trap is a thing of the past. Even RMS thinks so. Use IcedTea on Ubuntu 7.10 and OpenJDK on Ubuntu 8.04 or later. The first free project to offer substantial parts of Java platform functionality was Guavac. After that the free software movement developed java compilers, most notably the GNU Compiler for Java. GCJ is a front end to the GCC compiler which can natively compile both Java(tm) source and bytecode files. The compiler can also generate class files. Gcjwebplugin is a little web browser plugin to execute Java applets. It is targeted for Mozilla and compatible browsers that support the NPAPI. Others include the Eclipse Java Compiler, which is maintained by the Eclipse Foundation. Eclipse is an open-source Integrated development environment (IDE) written primarily in Java. The Eclipse open source community has over 60 open source projects. OpenJDK is the open source Java, derived from sources which will become OpenJDK 7 in the future.

Running Java under Ubuntu In order to run Java programs and Java applets, you must have a Java environment installed. The GCJ flavor of Java is installed as default, and is usually fine for most purposes. If it is not installed, JavaInstallation describes how to install some opensource flavors of Java. You may, however, have a need to run the Sun flavor of Java if something does not work correctly. To get Sun Java under Ubuntu 7.04 or later running on Intel or PowerPC platform, you should enable the Universe repository in Add/Remove programs, and install either the openjdk-6-jre package or the sun-java6-bin package. (Note: PowerPC version is slow). To get Sun Java under Ubuntu 6.06 or 6.10 running on Intel x86 platform, you should enable the Universe repository in Add/Remove programs, and install the sun-java5-bin package. Note: The same commands will work under Xubuntu/Kubuntu (using Add/Remove or the Adept Package Installer). Choosing the default Java to use Just installing new Java flavours does not change the default Java pointed to by /usr/bin/java. You must explicitly set this: * Open a Terminal window * Run sudo update-java-alternatives -l to see the current configuration and possibilities. * Run sudo update-java-alternatives -s XXXX to set the XXX java version as default. For Sun Java 6 this would be sudo update-java-alternatives -s java-6-sun * Run java -version to ensure that the correct version is being called. You can also use the following command to interactively make the change; * Open a Terminal window * Run sudo update-alternatives --config java * Follow the onscreen prompt

Kubuntu 9.10 (Karmic Koala) Beta This directory contains the most frequently downloaded Kubuntu images. Other images, including DVDs and source CDs, may be available on the cdimage server. See also the list of download mirrors. Select an image Kubuntu is distributed on two types of images described below. Desktop CD The desktop CD allows you to try Kubuntu without changing your computer at all, and at your option to install it permanently later. This type of CD is what most people will want to use. You will need at least 256MB of RAM to install from this CD. There are two images available, each for a different type of computer: PC (Intel x86) desktop CD For almost all PCs. This includes most machines with Intel/AMD/etc type processors and almost all computers that run Microsoft Windows, as well as newer Apple Macintosh systems based on Intel processors. Choose this if you are at all unsure. 64-bit PC (AMD64) desktop CD Choose this to take full advantage of computers based on the AMD64 or EM64T architecture (e.g., Athlon64, Opteron, EM64T Xeon, Core 2). If you have a non-64-bit processor made by AMD, or if you need full support for 32-bit code, use the Intel x86 images instead. Alternate install CD The alternate install CD allows you to perform certain specialist installations of Kubuntu. It provides for the following situations: * setting up automated deployments; * upgrading from older installations without network access; * LVM and/or RAID partitioning; * installs on systems with less than about 256MB of RAM (although note that low-memory systems may not be able to run a full desktop environment reasonably). In the event that you encounter a bug using the alternate installer, please file a bug on the debian-installer package. There are two images available, each for a different type of computer: PC (Intel x86) alternate install CD For almost all PCs. This includes most machines with Intel/AMD/etc type processors and almost all computers that run Microsoft Windows, as well as newer Apple Macintosh systems based on Intel processors. Choose this if you are at all unsure. 64-bit PC (AMD64) alternate install CD Choose this to take full advantage of computers based on the AMD64 or EM64T architecture (e.g., Athlon64, Opteron, EM64T Xeon, Core 2). If you have a non-64-bit processor made by AMD, or if you need full support for 32-bit code, use the Intel x86 images instead. Netbook live CD The live CD allows you to try Kubuntu Netbook Edition without changing your computer at all, and at your option to install it permanently later. This live CD is optimized for netbooks with screens up to 10". You will need at least 256MB of RAM to install from this CD. There is one image available: PC (Intel x86) netbook live CD For almost all PCs. This includes most machines with Intel/AMD/etc type processors and almost all computers that run Microsoft Windows, as well as newer Apple Macintosh systems based on Intel processors. Choose this if you are at all unsure. A full list of available files, including BitTorrent files, can be found below. If you need help burning these images to disk, see the CD Burning Guide.

Select an image Ubuntu is distributed on three types of images described below. Desktop CD The desktop CD allows you to try Ubuntu without changing your computer at all, and at your option to install it permanently later. This type of CD is what most people will want to use. You will need at least 256MB of RAM to install from this CD. There are two images available, each for a different type of computer: PC (Intel x86) desktop CD For almost all PCs. This includes most machines with Intel/AMD/etc type processors and almost all computers that run Microsoft Windows, as well as newer Apple Macintosh systems based on Intel processors. Choose this if you are at all unsure. 64-bit PC (AMD64) desktop CD Choose this to take full advantage of computers based on the AMD64 or EM64T architecture (e.g., Athlon64, Opteron, EM64T Xeon, Core 2). If you have a non-64-bit processor made by AMD, or if you need full support for 32-bit code, use the Intel x86 images instead.

Introduction The Ubuntu developers are moving quickly to bring you the latest and greatest software the Open Source Community has to offer. This is the Ubuntu 9.10 beta release, which brings a host of exciting new features. Note: This is a beta release. Do not install it on production machines. The final stable version will be released on October 29th, 2009. Upgrading from Ubuntu 9.04 To upgrade from Ubuntu 9.04 on a desktop system, press Alt F2 and type in "update-manager -d" (without the quotes) into the command box. Update Manager should open up and tell you: New distribution release '9.10' is available. Click Upgrade and follow the on-screen instructions. To upgrade from Ubuntu 9.04 on a server system: install the update-manager-core package if it is not already installed; edit /etc/update-manager/release-upgrades and set Prompt=normal; launch the upgrade tool with the command sudo do-release-upgrade -d; and follow the on-screen instructions.

Home Face-to-Face Local Support Our worldwide network of Local Community ("LoCo") teams is providing a strong backbone to our already vast and extensive Ubuntu community. Many of these teams provide free, face-to-face local support, such as one-on-one troubleshooting, group sessions, and presentations about Ubuntu. Why not go and see the full list of teams! Contents 1. Non-English Support 1. Bengali (Bangladesh) 2. Brazilian 3. Catalan 4. Česky 5. Chinese 6. Croatian 7. Dutch 8. Finnish 9. French 10. German 11. Greek 12. Hebrew and Arabic 13. India (any Indian language) 14. Indonesian 15. Italian 16. Japanese 17. Korean 18. Kurdish 19. Persian (Iran) 20. Portuguese 21. Romanian 22. Russian 23. Slovak 24. Spanish 1. General 2. Argentina 3. Chile 25. Swedish 26. Tamil 27. Turkish 28. Urdu (Pakistan) Non-English Support Support channels on IRC and mailing lists exist for Ubuntu users whose first language is not English. You are welcome to join one of these or start your own. An important part of the Ubuntu manifesto is your ability to use your software in your local language. Part of that is ensuring that Ubuntu includes the best translations available for the Ubuntu desktop software (and you can help to improve those translations). Another part of that commitment is helping to create mailing lists and IRC channels for Ubuntu users in different languages. If you want to start a local team or to join an existing one, visit https://wiki.ubuntu.com/LoCoTeams Bengali (Bangladesh) * Website: http://www.ubuntu-bd.org/ * Forum: http://forum.ubuntu-bd.org/ * IRC: #ubuntu-bd on irc.freenode.net * Mailing list: https://lists.ubuntu.com/mailman/listinfo/ubuntu-bd Brazilian * Website: http://www.ubuntu-br.org * Forums: http://forum.ubuntu-br.org * Wiki documentation: http://wiki.ubuntu-br.org * IRC: #ubuntu-br on chat.freenode.net * Mailing list: http://lists.ubuntu.com/mailman/listinfo/ubuntu-br

Why? "Under Linux there are GUIs (graphical user interfaces), where you can point and click and drag, and hopefully get work done without first reading lots of documentation. The traditional Unix environment is a CLI (command line interface), where you type commands to tell the computer what to do. That is faster and more powerful, but requires finding out what the commands are." -- from man intro(1) For some tasks, especially things like system configuration, it makes sense to use the terminal, and you'll probably have seen instructions on help pages or forums similar to:

The Terminal is Your Friend Perhaps the most powerful tool in Linux is your Terminal Program. Before you jump in, take a moment to familiarize yourself with the command line--your invaluable asset in Linux. FAQs Still have questions? You are not alone. Stop by the most common questions that new Ubuntu users frequently ask. Installation * See Installation for both basic and advanced methods of installing Ubuntu, as well as information about supported hardware. * Read the Upgrade Notes to find out how to upgrade your system from older versions of Ubuntu. * For a video tutorial on the full installation process, please visit: http://www.youtube.com/watch?v=w8a-smrPlvE&hd=1

Download project files After you've downloaded a file, you can verify its authenticity using its MD5 sum . (How do I verify a download?)

# Download the desired .img file # Install the usb-imagewriter package * If your release does not include this, download it from Oliver's PPA * If imagewriter fails to launch, you may need to install python glade2 support. Install the python-glade2 package or Run sudo apt-get install python-glade2 * If your release does not include it and you are running 9.04 Jaunty Jackalope then run this command from the console: o sudo apt-get install usb-imagewriter # Open Applications -> Accessories -> Image Writer * KDE users will find this in Applications -> Utilities -> Image Writer * on some usb-imagewriter versions (console command: imagewriter) the application fails to write if the image path contains blank spaces, exiting with "IndexError: list index out of range". Also, in case you prefer to launch it from the command line, don't forget to sudo it, otherwise it will give a permission error. # Insert your flash media # Select the downloaded file and flash device, and click "Write to Device" # Remove your device when the operation is complete

Other Links * Managing Software Repositories from the Command Line * Managing Software Repositories in Dapper Drake * Managing Software Repositories in Kubuntu * Adding extra repositories * Chapter 2 of the Ubuntu Desktop Guide, Adding, Removing and Updating Applications * The Debian Apt User Manual * man pages o sources.list * AptGet/Offline/Repository * Personal repositories * Launchpad - Installing Software from a PPA

Exploring the Repositories There are several gui-based methods you can use to explore the repositories. One is to open Synaptic and click on the Origin button. This will display a repository list in the window above the button. The list will contain all the repositories enabled in your sources.list. To the right will be the packages available via download (white boxes) and currently installed packages (green boxes). There are two images of the main Synaptic page below. The first, on the left, shows the results of selecting local/main. Local packages are packages stored on the user's computer. The second example, on the right, displays the results of selecting the Ubuntu main online repository.

Internet Relay Chat (IRC) is a form of realtime Internet chat. It is mainly designed for group (many-to-many) communication in discussion forums called channels, but also allows one-to-one communlication via private message. On IRC you can talk to many other members using Ubuntu, on topics ranging from idle chit-chat to support with your Ubuntu. Though a channel might have many people in it at any one time, they might not always be at their keyboard; so if no-one responds, just wait around and someone will hopefully answer soon enough. This page serves as an information base for users of the Ubuntu IRC channels. The Ubuntu channels can be found on the Freenode network, irc.freenode.net. xchat in Ubuntu has this network preconfigured and the main channel, #ubuntu, will automatically be joined. Kubuntu also comes with Konversation, which is also pre-configured for the Kubuntu help channels. When participating in Ubuntu IRC channels, please abide by the Code of Conduct and channel guidelines.

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If you have been a Windows and/or a Mac OS user to date, you are probably used to searching for a program on the internet (often offered in an executable installer) and having to download and install it. You're probably familiar with software distributed on CDs, DVDs, etc. which often have an autorun feature from where you can then install them. For free and open systems like Ubuntu GNU/Linux there is some software distributed in this fashion, but those are mostly proprietary and closed programs.