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Pre-release Ubuntu 12.10 has partial support for manual LVM and disk encryption

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Today, I took another look at a daily build of Ubuntu 12.10 to see how far the coders have come in implementing manual LVM and disk encryption. Here is what I found: read more...
permapage | score:9728 | -finid, September 27, 2012

Install Linux Mint Debian Edition on an encrypted LVM file system

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Linux Mint Debian Edition (LMDE) is the edition of Linux Mint that is based on Debian Testing. Like the edition of Linux Mint based on Ubuntu, the installer of LMDE lacks support for LVM, and disk encryption. This tutorial presents a detailed guide on how to install LMDE on an encrypted LVM file system. But how is that possible if the installer lacks support for LVM and disk encryption? Easy. First, install a base Debian Testing system using a Debian Testing installer. Second, point the package manager to the default LMDE repositories. At the end, you will be running a system with an encrypted disk, which means another layer of physical security for your data, and one that makes it possible to manage disk space is a manner that is not possible otherwise. read more...
mail this link | permapage | score:8870 | -finid, January 2, 2011

LVM: Resize Linux Partitions

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LVM is handy if you work as a Linux sysadmin and your users have no idea how big their files will grow.
The Logical Volume Manager (LVM) enables you to resize your partitions without having to modify the partition tables on your hard disk. LVM becomes useful when you are running out of disk space and instead of reinstalling your system on a larger driver, you can simpy expand your existing partiton scheme.
read more...
permapage | score:8847 | -Ray, December 12, 2005

Tutorial: Backup LVM Partitions with Snapshots

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This tutorial shows how you can create backups of LVM partitions with an LVM feature called LVM snapshots. An LVM snapshot is an exact copy of an LVM partition that has all the data from the LVM volume from the time the snapshot was created. The big advantage of LVM snapshots is that you do not have to worry about open files and database connections, and you do not have to interrupt/halt services on the live partition because a snapshot is usually created in fractions of a second, so your users will not notice any disruption, and your snapshot holds consistent data. read more...
mail this link | permapage | score:8684 | -falko, April 18, 2007

Xen live migration of LVM virtual machines with iSCSI on Debian

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This guide explains how you can do a live migration of an LVM-based virtual machine (domU) from one Xen host to the other. I will use iSCSI to provide shared storage for the virtual machines in this tutorial. Both Xen hosts and the iSCSI target are running on Debian Lenny in this article. read more...
permapage | score:8556 | -falko, May 1, 2009

Install Mageia 1 on encrypted LVM

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Mageia is a new Linux distribution formed by former employees and contributors of Mandriva, a Linux software provider and publisher of a line of Linux distributions of the same name. The first stable release (of Mageia) has since been reviewed for this website (see Mageia 1 review). This article presents the steps necessary to install it on an encrypted LVM file system. read more...
permapage | score:8538 | -finid, June 28, 2011

Ubuntu LVM Configuration

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Trying to set up an LVM-based desktop system in Ubuntu means using the "alternate-text" installer edition. This simple tutorial provides a step-by-step guide, with screenshots, on how to configure Linux Logical Volume Manager (LVM) in Ubuntu, using Ubuntu 8.10. read more...
permapage | score:8526 | -finid, November 14, 2008

Tutorial: Install Ubuntu 11.04 on encrypted LVM

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Ubuntu is one of many Linux distributions with support for LVM, the Linux Logical Volume Manager. LVM is a disk partitioning scheme that brings a level of flexibility to disk management that is not possible with the traditional method. With LVM, you can, if necessary, increase the size of a partition online, that is, while the system is running, without unmounting the partition. You can also add another disk to the system if the old one becomes full. There are many more benefits that LVM offers, but the those two are more than enough reasons to consider using it.

This tutorial presents a step by step guide on how to install Ubuntu 11.04, the latest stable release, on an encrypted LVM file system. Why is it necessary to encrypt the disk? For the reasons detailed here, disk encryption protects your data from unauthorized physical access. read more...
mail this link | permapage | score:8497 | -finid, May 11, 2011

Back up MySQL Databases with mylvmbackup on Debian 6

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mylvmbackup is a Perl script for quickly creating MySQL backups. It uses LVM's snapshot feature to do so. To perform a backup, mylvmbackup obtains a read lock on all tables and flushes all server caches to disk, creates a snapshot of the volume containing the MySQL data directory, and unlocks the tables again. This article shows how to use it on a Debian Squeeze server. read more...
permapage | score:8407 | -falko, May 11, 2012

Add Software RAID1 to Ubuntu 11.10 LVM

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This guide explains how to set up software RAID1 on an already running LVM system (Ubuntu 11.10). The GRUB2 bootloader will be configured in such a way that the system will still be able to boot if one of the hard drives fails (no matter which one). read more...
permapage | score:8283 | -falko, March 31, 2012

LVM Tutorial

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This guide shows how to work with LVM (Logical Volume Management) on Linux. It also describes how to use LVM together with RAID1 in an extra chapter. As LVM is a rather abstract topic, this article comes with a Debian Etch VMware image that you can download and start, and on that Debian Etch system you can run all the commands I execute here and compare your results with mine. Through this practical approach you should get used to LVM very fast. read more...
permapage | score:8137 | -falko, January 17, 2007

VirtualBox Tutorial: Clone live virtual machines with LVM snapshots

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If you use LVM volumes for your VirtualBox VMs, you can create backups and clones of a running VM without shutting it down. This tutorial shows just that: using LVM snapshots to create backups and clones of running VirtualBox VMs without downtime. read more...
permapage | score:8122 | -falko, July 28, 2012

Install RAID5 and LVM on Debian

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Do it the easy way with the Debian Etch installer...
Our team at LinuxForce recently put together a Debian server with LVM on a software RAID5 volume. This has been possible through complex installation procedures in the past, but today the Debian Etch installer is capable of handling such an installation if you follow the proper steps, which I outline in this article.

Among other things, we needed the flexibility to write partition tables for Xen on the fly, dependability that would allow a generous replacement window when harddrives failed, and as little possibility of data loss and downtime through harddrive failure as possible.
read more...
mail this link | permapage | score:8088 | -Ray, April 1, 2007

Semi-manual LVM disk partitioning guide for Fedora 18

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Semi-manual LVM disk partitioning guide for Fedora 18 provides a step-by-step guide on how to customize the disk space allocated to the root logical volume, so that it gets just enough disk space required for the life of the installation. read more...
permapage | score:8032 | -finid, February 11, 2013

Xen: Convert an image-based guest to LVM

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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. Also, LVM-based guests are easier to back up (using LVM snapshots). read more...
permapage | score:7967 | -falko, April 21, 2009

Resize LVM RAID Partitions

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This article describes how you can shrink and grow existing software RAID1 partitions with LVM on top. I have tested this with logical volumes that use ext3 as the file system. I will describe this procedure for an intact RAID array and also a degraded RAID array. read more...
permapage | score:7951 | -falko, January 9, 2009

Tutorial: Learning Linux LVM

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Also known as Storage management magic with Logical Volume Management.
In this article, Daniel introduces you to the concepts behind Linux LVM (Logical Volume Management) and shows you how to get the latest kernel patches and tools installed on your system. LVM allows you to create logical volumes out of the physical storage resources on your machine. However, unlike physical volumes, the logical volumes can be expanded and shrunk while the system is still running, providing Linux system administrators with the storage flexibility that they've until now only dreamed of.
read more...
mail this link | permapage | score:7879 | -Ray, April 23, 2001 (Updated: June 7, 2003)

Full disk encryption and LVM configuration in the Ubuntu GUI

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Well, it looks like from Ubuntu 12.10, due in late October, Ubiquity will have support for full disk encryption and LVM. The test build that I installed in a virtual machine shows that the implementation is still in the early stages, but it also shows how easy it will be to configure both features when the final release hits the digital shelves. read more...
permapage | score:7750 | -finid, September 6, 2012

Tutorial: LVM configuration (Debian 6)

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Debian is one of a handful of Linux distributions with support for setting up LVM, the Linux Logical Volume Manager. LVM brings a level of flexibility to disk management on Linux that is not possible with the traditional disk partitioning scheme. If your favorite Linux distribution supports LVM, I’ll always recommend that you use it.

This tutorial gives a detailed step-by-step guide on how to install Debian 6 on an LVM file system. read more...
permapage | score:7710 | -finid, February 17, 2011

Back up LVM XEN Guest with LVs

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In my day-job all our Linux boxes (bar 3) are Xen VMs. I wanted a way to take a backup of these with out the risk of the files changing underneath. For performance reasons I am running all of them on Logical Volumes. Within these VMs the DomU OS is once again using LVM for various reasons. This does create some headaches for taking the backup. read more...
permapage | score:7700 | -falko, February 16, 2009
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