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Xen: How to Convert An Image-Based Guest To An LVM-Based Guest

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This short article explains how you can move/convert a Xen guest that uses disk images to LVM volumes. Virtual machines that use disk images are very slow and heavy on disk IO, therefore it is often better to use LVM.

some howtos:

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  • Bash tips for power users

  • Arduino hardware hacking: Part 2
  • LatencyTOP - Measuring and Fixing Linux latency
  • Fine tune your Linux command line History
  • Vim regexes are awesome
  • Fix for OpenOffice Writer bad screen redraw refresh
  • Perfect Paper Passwords - One Time Password System
  • Install Mplayer and Multimedia Codecs in Debian

some howtos:

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  • Teaching Programing Skills to Children with Logo

  • How to build aircrack-ng on openSUSE
  • Upgrading Multiple Debian Machines Quickly With approx
  • BleachBit to cleanup unwanted files on your openSUSE
  • View hidden files
  • prevent your SSH session from disconnecting in Linux
  • Dropbox on Ubuntu
  • Automate Your System Backup With Back In Time

some howtos:

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  • Skype settings for Ubuntu 9.04

  • Secure File Transfer in Nautilus with SFTP
  • How to redirect traffic to another machine in Linux
  • Customizing Drupal 6 Interface
  • Running KDE4 with KWin/Plasma compositing effects on 2133
  • Installing SELinux on Debian/Lenny
  • Virtualbox
  • Beginner's Shell Scripting: How & Why
  • Backup all files in directory
  • Linux Migration for the Home PC User, Part 3
  • 4 Ways to Help Out Your Local Mirror
  • nvidia tv out in Debian
  • More Job Control
  • How to Detect and Prevent Psyb0t, the Linux Router Worm

Collecting and analyzing Linux kernel crashes - LKCD

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HowTos Having found the available information on system analysis rather sparse and/or written in such a fashion that is hardly of any use but to the people who wrote the actual documents,I have decided to write a series of articles on Linux system analysis.

some howtos:

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  • Run Windows applications on top of Linux desktop with Seamless Mode in VirtualBox

  • 10 step move Kmail to Outlook
  • Understanding Sticky Windows
  • Sort CLI output by line length
  • sometimes, grep alone is enough
  • error: failed to commit transaction (conflicting files)
  • Concatenate pairs of lines
  • How To Turn Off Your Monitor Via Command Line
  • Connect to a WEP network via command line
  • Arch Linux running the latest kernel

Creating Reports in Base

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HowTos Let's face it, databases are only minimally human-readable. In fact, to anybody who's not an accountant or a computer geek, reading databases can be downright intimidating. However, this limitation is partially compensated by the fact that reports in Base are quick and easy to create and are displayed and printed in Writer.

some howtos:

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  • Scheduling Commands with crontab

  • Manage Sony Reader in Linux
  • Surveillance video under Linux using ZoneMinder
  • How to block DDOS attacks in Linux
  • Dodge the challenges of a dual-head display setup with Fedora 10
  • Death to Processes
  • Compiling Perl into Binary Code
  • How to add a directory to the path
  • Debian Lenny AMD64 Install Tutorial
  • Ubuntu 9.04: Installing Landscape on the Server
  • KVM in Ubuntu - Setup and Virtual Machine Creation Guide

10 Expert Ubuntu Tricks

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HowTos Recently I started work on a new Ubuntu tips book that will partner my existing title, Ubuntu Kung Fu. The new book is still being planned and won't be published until next year, but I thought I'd share 10 tips that are on my list to be included.

Virtualization With KVM On A CentOS 5.2 Server

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This guide explains how you can install and use KVM for creating and running virtual machines on a CentOS 5.2 server. I will show how to create image-based virtual machines and also virtual machines that use a logical volume (LVM).

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More in Tux Machines

Leftovers: Software

  • Easy, Automated Benchmarking On Linux With PTS
    It's easy to run benchmarks on Linux as well as Solaris, BSD, and other operating systems, using our own Phoronix Test Suite open-source benchmarking software. For those that haven't had the opportunity to play with the Phoronix Test Suite for Linux benchmarking, it's really easy to get started. Aside from the official documentation, which is admittedly limited due to time/resource constraints, there are a few independent guides, Wiki pages, and other resources out there to get started.
  • LibreOffice 5.3 Alpha Tagged, New Features Inbound
    The first alpha release of the upcoming LibreOffice 5.3 open-source office suite was tagged a short time ago in Git. LibreOffice 5.3 is a major update to this distant fork of LibreOffice 5.3.0 is planned to be officially released in late January or early February while this week's alpha one is just the first step of the process. The hard feature freeze on 5.3 is at the end of November followed by a series of betas and release candidates. Those interested in more details on the release schedule can see this Wiki page.
  • MPV 0.21 Player Adds CUDA, Better Raspberry Pi Support
    MPV Player 0.21 is now available as the latest version of this popular fork of MPlayer/MPlayer2. MPV 0.21 adds support for CUDA and NVDEC (NVIDIA Decode) as an alternative to VDPAU. The NVIDIA decode support using CUDA was added to make up for VDPAU's current lack of HEVC Main 10 profile support. Those unfamiliar with NVDEC can see NVIDIA's documentation.
  • MPV 0.21.0 Media Player Adds Nvidia CUDA Support, Raspberry Pi Hardware Decoding
    Today, October 20, 2016, MPV developer Martin Herkt proudly announced the release of another maintenance update of the very popular MPV open-source and cross-platform media player software based on MPlayer. Looking at the release notes, which we've also attached at the end of the story for your reading pleasure, MPV 0.21.0 is a major update that adds a large amount of new features, options and commands, but also addresses dozens of bugs reported by users since the MPV 0.20.0 release, and introduces other minor enhancements. Among the most important new features, we can mention the ability to allow profile forward-references in the default profile, as well as support for Nvidia CUDA and cuvid/NvDecode, which appears to be a welcome addition to GNU/Linux distributions where HEVC Main 10 support is missing.
  • anytime 0.0.4: New features and fixes
    A brand-new release of anytime is now on CRAN following the three earlier releases since mid-September. anytime aims to convert anything in integer, numeric, character, factor, ordered, ... format to POSIXct (or Date) objects -- and does so without requiring a format string. See the anytime page for a few examples.

KDE Leftovers

  • Choose Your Own Experience in Plasma 5.8 and beyond
    One of the key points of Plasma is while giving a simple default desktop experience, not limiting the user to that single, pre-packed one size fits all UI.
  • KDevelop 5.0.2 released for Windows and Linux
    Four weeks after the release of KDevelop 5.0.1, we are happy to announce the availability of KDevelop 5.0.2, a second stabilization release in the 5.0 series. We highly recommend to update to version 5.0.2 if you are currently using version 5.0.1 or 5.0.0.
  • Wayland improvements since Plasma 5.8 release
    Two weeks have passed since the Plasma 5.8 release and our Wayland efforts have seen quite some improvements. Some changes went into Plasma 5.8 as bug fixes, some changes are only available in master for the next release. With this blog post I want to highlight what we have improved since Plasma 5.8.
  • Wayland For KDE Plasma 5.9 Should Shape Up Quite Nicely
    Plasma 5.8 was only released at the beginning of October but already there has been a number of Wayland improvements queuing up for the next milestone, Plasma 5.9. KWin maintainer Martin Gräßlin wrote a blog post yesterday about some of the early Wayland changes coming for Plasma 5.9. Some of this early work for the next KDE Plasma 5 release includes resize-only borders, global shortcut handling, support for keyboard LEDs via libinput, relative pointer support, the color scheme syncing to the window decoration, window icon improvements, multi-screen improvements, panel imporvements, and more.
  • Autumn Sale in the Krita Shop
  • .

Linux/FOSS Events

  • FOSDEM Desktops DevRoom 2016 all for Participation
    FOSDEM is one of the largest (5,000+ hackers!) gatherings of Free Software contributors in the world and happens each February in Brussels (Belgium, Europe). Once again, one of the tracks will be the Desktops DevRoom (formerly known as “CrossDesktop DevRoom”), which will host Desktop-related talks. We are now inviting proposals for talks about Free/Libre/Open-source Software on the topics of Desktop development, Desktop applications and interoperability amongst Desktop Environments. This is a unique opportunity to show novel ideas and developments to a wide technical audience.
  • LatinoWare
    Yesterday, Wednesday 19 oct, was the first day of LatinoWare thirteen edition hosted in the city of Foz do Iguaçu in Parana state with presence of 5155 participants and temperature of 36ºC. Currently this is the biggest event of free software in Brazil.
  • Attending a FUDcon LATAM 2016
    From my experience I will share my days at FUDcon 2016 held on Puno last week. There were 3 core days, and 2 more days to visit around.

Linux Graphics