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OpenSUSE

Linux Kernel Magic SysRq keys in openSUSE for crash recovery

Post date: September 28, 2008, 17:09 Category: System Views: 3331 Comments
Tutorial quote: The Linux Kernel offers you something that allows you to recover your system from a crash or at the least lets you to perform a proper shutdown using the Magic SysRq Keys. The magic SysRq key is a select key combination in the Linux kernel which allows the user to perform various low level commands regardless of the system’s state using the SysRq key. It is often used to recover from freezes, or to reboot a computer without corrupting the filesystem.
OpenBSD

OpenBSD encrypted raid disk

Post date: November 6, 2009, 10:11 Category: System Views: 5194 Comments
Tutorial quote: This document explain process to create encryped device with vnd driver stored on logical raid disk (Raid 1 - 0)
Debian

OpenVZ On Debian Etch For Webservers

Post date: December 26, 2006, 21:12 Category: System Views: 3239 Comments
Tutorial quote: Virtualization is a good practice for servers, since it makes things more secure, scalable, replacable, and replicable, all this at the cost of little added complexity. This guide was written during an install of a Supermicro machine with two dual-core opterons (64-bit), two identical disks (for RAID) and a load of memory. Why OpenVZ and not XEN or the recent KVM kernel module? Well, XEN is not very stable for 64-bit architectures (yet), and it comes with quite a bit of overhead (every VM runs its own kernel) due to its complexity. KVM is very simple but restricts you to run a kernel as one process, so the VM cannot benefit from multi core systems.
Gentoo

Logitech quickcam on 2.6.x kernel

Post date: April 25, 2005, 23:04 Category: Hardware Views: 3114 Comments
Tutorial quote: This short tutorial explains how to get your Logitech Quickcam to work under 2.6.x kernel.
OpenSUSE

HowTo: Install configure KVM Virtualization & run Guest OSes in openSUSE

Post date: September 30, 2008, 21:09 Category: Emulation Views: 5924 Comments
Tutorial quote: Kernel-based Virtual Machine (KVM) is a Linux kernel virtualization infrastructure. KVM is a full virtualization solution for Linux on x86 hardware containing virtualization extensions Intel VT (vmx) or AMD-V (svm). It consists of a loadable kernel module, kvm.ko, that provides the core virtualization infrastructure and a processor specific module, kvm-intel.ko or kvm-amd.ko. KVM also requires a modified QEMU although work is underway to get the required changes upstream.
Ubuntu

Using KVM On Ubuntu 7.10 (Gutsy Gibbon)

Post date: December 2, 2007, 11:12 Category: Miscellaneous Views: 3050 Comments
Tutorial quote: In this HowTo I will explain how to install and use KVM for running your services in virtual machines. KVM (Kernel-based Virtual Machine) is a Linux kernel virtualization technique that provides full virtualization by using Intel VT (Vanderpool) or AMD-V (Pacifica).
RedHat

Compile 2.6 kernel for RedHat 9 and 8.0 and get Fedora Updates

Post date: April 13, 2005, 00:04 Category: System Views: 3379 Comments
Tutorial quote: This tutorial walks you through compiling 2.6 kernel for RedHat 9 and 8.0 and getting Fedora Updates.
Debian

Boot On BTRFS With Debian

Post date: August 2, 2009, 11:08 Category: Miscellaneous Views: 2879 Comments
Tutorial quote: This tutorial will explain you how to boot from a BTRFS filesystem with kernel 2.6.31-RC4 and BTRFS 0.19. BTRFS is a new filesystem with some really interesting features like online defragmenting and snapshots. BTRFS is an experimental filesystem, use at your own risk. The kernel used is also experimental.
Fedora

Watching Your Power Consumption With Powertop On Fedora 7

Post date: October 1, 2007, 10:10 Category: Miscellaneous Views: 2934 Comments
Tutorial quote: Powertop is a command-line tool released by Intel that shows you the power consumption of the applications running on your system. It works best on notebooks with Intel mobile processors and can help you find out the programs that put a strain on your notebook battery. It requires kernel 2.6.21 or newer with tickless idle enabled (CONFIG_NO_HZ) (which is currently available for 32-bit kernels only). Fedora 7 comes with a 2.6.21 kernel by default, so we can use Powertop on it.
Ubuntu

Installing Kernel Updates Without Reboot With Ksplice Uptrack On Ubuntu 9.10

Post date: February 14, 2010, 13:02 Category: Miscellaneous Views: 2548 Comments
Tutorial quote: Ksplice Uptrack is a subscription service that lets you apply 100% of the important kernel security updates released by your Linux vendor without rebooting. Ksplice Uptrack is freely available for the desktop versions of Ubuntu 9.10 Karmic and Ubuntu 9.04 Jaunty. This tutorial shows how to install and use it on an Ubuntu 9.10 desktop.
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