Language Selection

English French German Italian Portuguese Spanish

Recover Data From RAID 1 LVM Partitions With Knoppix Linux LiveCD

Filed under
HowTos

This tutorial describes how to rescue data from a single hard disk that was part of a LVM2 RAID1 setup like it is created by e.g the Fedora Core installer. Why is it so problematic to recover the data? Every single harddisk that formerly was a part of a LVM RAID 1 setup contains all data that was stored in the RAID, but the hard disk can not simply be mounted. First, a RAID setup must be configured for the partition(s) and then LVM must be set up to use this (these) RAID partition(s) before you will to be able to mount it. I will use the Knoppix Linux LiveCD to do the data recovery.

Prerequisites

I used a Knoppix 5.1 LiveCD for this tutorial. Download the CD ISO image from here and burn it on CD, then connect the hard disk which contains the RAID partition(s) to the IDE / ATA controller of your mainboard, put the Knoppix CD in your CD drive and boot from the CD.

The hard disk I used is an IDE drive that is attached to the first IDE controller (hda). In my case, the hard disk contained only one partition.

Full Story.

More in Tux Machines

GNOME/Unity in Ubuntu

today's howtos

Leftovers: Software (Subsurface, GRUB, GIMP, and Todo.txt)

  • Announcing Subsurface 4.6.4
    The Subsurface development team proudly announces the release 4.6.4 of Subsurface, an open source dive log and dive planning program for Windows, Mac and Linux.
  • Subsurface 4.6.4 Open-Source Dive Log and Planning Tool Adds Many Improvements
    The development team behind the Subsurface open-source dive log and dive planning application was proud to announce the immediate availability for download of the Subsurface 4.6.4 release. Subsurface 4.6.4 is the latest stable version of the popular program developed by Linus Torvalds in collaboration with other developers, and adds a great number of improvements over previous builds. These include a new planner mode to calculate minimum gas, better handling of notes when replanning dives, as well as support for the border width setting in printing templates.
  • GRUB 2.02 Bootloader Officially Released with ZFS LZ4 & LVM RAID1 Support, More
    The long-anticipated GRUB 2.02 open-source bootloader software project was finally promoted to the stable channel after being in Beta stages of development for the past few years. The development team took their time to finalize the release of GRUB 2.02, which should soon make its way into the stable software repositories of your favorite operating system, but it's finally here and we want to thank them for all their hard work and the awesome new features and improvements implemented so far.
  • [New] GIMP review
    GIMP (short for GNU Image Manipulation Program) is a free alternative to Photoshop that more than holds its own. But don't think that the lack of a price tag means GIMP is lacking in features; it packs enough punch to genuinely rival Adobe's imaging behemoth. GIMP comes with impressive selection and montage features, various ways to retouch your images, cropping, noise reduction and colour adjustment tools, customisable brushes, gradients and so much more. There's plenty for the more advanced user, too, including layer masks, bezier curves, filters and even an animation package.
  • Todo.txt – A Nifty ToDo Indicator Applet for Ubuntu
    Todo.txt is an extremely simple indicator applet that lets you quickly tick off the tasks contained in your todo.txt file. It lives in the system tray and has options: Edit todo.txt, Clear completed, and refresh. Ultimately, its job is to help you edit your todo.txt file and mark tasks as completed without needing to open a full-fledged text editing application.

Red Hat News