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Top Forums UNIX for Advanced & Expert Users Data Recovery from file system overwritten with LVM. Post 302113439 by squid04 on Friday 6th of April 2007 03:12:07 AM
Old 04-06-2007
Data Recovery from file system overwritten with LVM.

Hey peeps,

Here is somethin u might find interestin....
Is it possible to recover data from a partition which used to be an ext3 file sytem with some nice forgotten backups, which now is an lvm partion containg root partition of another OS. Smilie
I couldn't create any mess better than this, can i Smilie

Btw I am using Debian/GNU Linux 4.1 Sid.

According to my very little knowledge and very little experience this is not possible coz the file system is overwritten.
I have already broken the LVM now. Smilie

If any of you gentleman thinks or knows that there is somethin that could be done, please answer to this post, you can scold me too Smilie , I will provide more information.
 

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dtc_setup_vps_disks(8)					      System Manager's Manual					    dtc_setup_vps_disks(8)

NAME
dtc_setup_disk - setup LVM disks for using it as a VM SYNOPSIS
dtc_setup_vps_disk.sh VPS_NUMBER HDD_SIZE SWAP_SIZE [ lvm|loopback ] DESCRIPTION
dtc_setup_vps_disk.sh This shell script is a part of the dtc-xen package that is to be used by the dtc panel to manage a Xen VPS server. This script is used to create partitions to be used by a VPS later on. It will create a normal partition that will be used as a root disk, and a swap partition. dtc_setup_disk is to be used by the dtc-xen SOAP server, but can also be used as a standalone userland tool. If the partition(s) exists, then this script will delete it/them first. OPTIONS
VPS_NUMBER has to be a number between 01 and 19. Let's say the number is 16, and that dtc-xen is configured to use the volume group called lvm1, then this script will create /dev/lvm1/xen16 and /dev/lvm1/xen16swap. HDD_SIZE Size in MB of the VPS partition to create. SWAP_SIZE Size in MB of the VPS swap partition to create. If the dtc-xen SOAP server is used to create the VPS, then it will create a swap partition of the exact same size as the memory. IMAGE_TYPE This parameter can have 2 values: either lvm or loopback. If ommited, then lvm is used. If lvm is used, then this script will create a partition using lvmcreate, otherwise it will create an image file. Both will later be used for the VPS. EXAMPLE
dtc_setup_vps_disk 04 15360 256 lvm This will create 2 LVM partition to be used by the VPS named xen04, the first one being a root partition of 15 GB, and the second one being a swap partition of 256 MB. VERSION
This documentation describes dtc_setup_vps_disk version 0.3.15. See http://www.gplhost.com/software-dtc-xen.html for updates. SEE ALSO
dtc_reinstall_os(8), dtc_kill_vps_disk(8) dtc_setup_vps_disks(8)
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