Linux

How to Hard Reset a Bricked Nexus 7 With Your PC. Build for grouper. How to Build CyanogenMod for Nexus 7 (Wi-Fi, 2012 version) (codename: grouper) Introduction These instructions will hopefully assist you to start with a stock Nexus 7 (Wi-Fi, 2012 version), unlock the bootloader (if necessary), and then download the required tools as well as the very latest source code for CyanogenMod (based on Google’s Android operating system).

[HOWTO] Build CM10.1 for Nexus 7. [HOWTO] Build CyanogenMod 11.0 for Nexus 7 11-5-13 -- See here for the start of the CM 11.0 (based on Android 4.4 KitKat) discussion.

A Novice's Guide to Android Rooting, Recovery and Flashing. This is an introduction to customising Android (rooting, recovery and flashing), which is intended for those already acquainted with Android and wish to unleash the power of open source.

We will cover more in the future, tailored to, and depending on, your feedback. Android has turned out to be another revolutionary product from Google — but its strength stems from its being released as open source, which has led it to dominating the mobile OS market. The Android Market will soon top the Apple’s App Store in the number of apps. Android is a bundle of the OS kernel, middleware, applications and a superb framework, which gives developers a chance to create superb applications with an unforgettable user experience. The Android architecture (Figure 1) has applications (that are available to end users) at the top; below that are a bed of managers (the package manager, notification manager, telephony Manager, etc). How to convert between packages (deb, rpm, tgz) using alien on Linux.

Alien is a program that converts between Redhat rpm, Debian deb, Stampede slp, Slackware tgz, and Solaris pkg file formats.

If you want to use a package from another linux distribution than the one you have installed on your system, you can use alien to convert it to your preferred package format and install it. It also supports LSB packages Warning:Alien should not be used to replace important system packages, like init, libc, or other things that are essential for the functioning of your system. Many of these packages are set up differently by the different distributions, and packages from the different distributions cannot be used interchangeably. Set Up Rsnapshot, Archiving Of Snapshots And Backup Of MySQL Databases On Debian. By Nedim Hadzimahmutovic <h.nedim@gmail.com> This howto will show you how to install and set up Rsnapshot, enable archiving of snapshots and how to back up MySQL databases on Debian.

Install the program using the apt-get utility: # apt-get install rsnapshot Edit config file: Using The btrfs Filesystem (With RAID1) With Ubuntu 12.10 On A Hetzner Server. Version 1.0 Author: Falko Timme <ft [at] falkotimme [dot] com> Follow me on Twitter Last edited 12/21/2012 This tutorial shows how to install Ubuntu 12.10 on the btrfs filesystem (with RAID1) on a Hetzner server with two hard drives.

How We Are Using Btrfs To Find Regressions Incredibly Fast. Linux Shell Scripting -A Beginner's handbook [Part -1] Which Shell we are going use in this tutorial?

We are using bash shell. Weekend Project: Get Started with Btrfs. The B-tree file system Btrfs is a next-generation filesystem for Linux, and although it is still undergoing rapid development, you can use it for day-to-day tasks.

Even if you are not prepared to migrate your production servers over to Btrfs, you should take some time to explore what it can do. It offers significant time- and space-efficiency improvements over ext3/ext4 — not to mention considerably simpler volume management. Nodes in the tree are also check-summed, and include both reference counts and back-references, which makes checking for correctness and moving or resizing the filesystem simpler. Finally, the system uses a copy-on-write strategy that writes changed data to disk first, then updates the references in the tree. This crash-proofs the filesystem, but without the overhead of maintaining a journal.

There are still more advantages at the filesystem tools level. Getting Started. Get to Know Btrfs. The Butter/Better/B-tree Filesystem, Btrfs, is supposedly destined to become the default Linux filesystem.

What makes it special, and what's wrong with good old tried-and-true Ext2/3/4? Too Many Filesystems Linux supports a gigantic number of filesystems: removable media, network, cluster, cloud, journaling, virtual machine, compressed, embedded, hardware inter-connect, pseudo-filesystems that live only in memory, Mac and Windows filesystems, and many more. The Beginner’s Guide to Shell Scripting: The Basics. The term “shell scripting” gets mentioned often in Linux forums, but many users aren’t familiar with it.

Learning this easy and powerful programming method can help you save time, learn the command-line better, and banish tedious file management tasks. What Is Shell Scripting? Being a Linux user means you play around with the command-line. Like it or not, there are just some things that are done much more easily via this interface than by pointing and clicking.

The more you use and learn the command-line, the more you see its potential. Now, some of you who used Windows before using Linux may remember batch files. Shell scripts allow us to program commands in chains and have the system execute them as a scripted event, just like batch files. The How-To Geek. This guide will attempt to explain how to use iptables on linux in easy to understand language. Overview Iptables is a rule-based firewall, which will process each rule in order until it finds one that matches. Todo: include example here Usage The iptables utility is typically pre-installed on your linux distribution, but isn’t actually running any rules. Collection of basic Linux Firewall iptables rules. The following iptables rules should serve as a template for creating more customized iptables rules to fit desired network environment.

This article is NOT a comprehensive guide to iptables. If you are new to iptables please familiarize your self with netfilter / iptables before you use some of the iptables rules described below. This is especially recommended if you are working on a production server. Before applying any rule make sure that you know what you are doing. The second line of the rules only allows current outgoing and established connection. A visual guide to the crontab file. June 19th, 2008 · 4 Comments · *nix, Linux I sometimes need to remind myself how to edit that crontab file … today I found a great little graphic on the Linuxconfig wiki that sums it up nicely:

Crontab Tutorial (Cron Tutorial) What is Crontab? Crontab (CRON TABle)is a program that manipulates the CRON daemon, making it easy for users to schedule task and run programs/commands at pre determined periods of time. Linux Iptables: Block All Incoming Traffic But Allow SSH. This is very common scenario. Wunschkonzert, Ponyhof und Abenteuerspielplatz. O'Reilly's CD bookshelf. Welcome to The UNIX Grymoire! Your browser does not have Javascript enabled. Qualcomm based Galaxy S3 UART Location and Teardown. I introduced my 5-year-old and 2-year-old to startx and xmonad. They’re DELIGHTED! June 20th, 2012 Two years ago, Jacob (then 3) and I built his first computer together. I installed Debian on it, but never put a GUI on the thing. How to Create a Bulletproof Ubuntu Installation. One of the biggest complaints I hear from new Ubuntu users is how easy it is to mess up an existing Ubuntu installation. Whether the issue stems from an update gone wrong, the hard drive crashing (which is actually a hardware issue) or simply the user deleting a directory best left untouched isn’t the point.

The fact of the matter is, having an indestructible Ubuntu installation does have its benefits. Linux tip: Using the read command. January 07, 2013, 8:21 AM — This content is excerpted from the new 3rd Ed. of 'A Practical Guide to Linux: Commands, Editors, and Shell Programming', authored by Mark Sobell, ISBN 013308504X, published by Pearson/Prentice Hall Professional, Sept. 2012, Copyright 2013 Mark G.

Sobell. For more info please visit www.sobell.com or the publisher site, www.informit.com. Everyday Linux User: Everyday Linux User Guide To Setting Up The Internet On The Raspberry PI. Introduction. Anatomy of command line arguments in Linux. While designing a simple C program or a full fledged command line application, it is pretty usual to have a requirement for arguments to be passed while running the executable/application. These arguments are known as command line arguments. 6 Tips For Improving Game Performance with Steam on Linux.

Steam for Linux is finally out. Whether you’re an old Linux user who’s never cared much about gaming performance or a new user dipping your toes into Linux gaming, we’ll help get those games running as smoothly as possible. A variety of things can impact performance, from the versions of the graphics drivers you have installed to the desktop environment you’re using and the way you’ve installed Ubuntu on your computer. Use the Best Graphics Drivers.