Backing up LVs

[Alexander Skwar]

· Gabriel M Dragffy <dragffy at yandex.ru>:

> I've now switched to LV and all my old knowledge has been obsoleted. Now
> a program like gparted just reads my vg as one huge partition and the
> same is true for TrueImage. I want to make a backup of my root partition
> (some 4gb) and not all 54gb of the vg. What methods are available to me?

With LVM, you've got even *MORE* options. One of the EXCELLENT options
you've got with LVM is, that you can take "snapshots". The Howto has
a section for this as well: "Taking a Backup Using Snapshots" - 
<http://www.tldp.org/HOWTO/LVM-HOWTO/snapshots_backup.html>. The nifty
thing about snapshots is, that you can safely take a "dd" image while
the original fs is online and that this image will be consistent.

But as usual, you normally don't make dd images but rather cpio/tar
or better yet: rbackup backups. And with snapshots, the backup can
be made while everything is online.

> PS. My old method was to create an image file using trueimage on an
> external usb hard drive, and this has always been excellent. 

I don't know this trueimage thing. It's not listed in synaptic.
Where can it be downloaded?

> Is there 
> something similar I might be able to do now that I using LVs?

Well - please first explain what "trueimage" is, then it might
be possible to tell, if there's something similar.

Alexander Skwar
-- 
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... daß ich das "dass" boykottiere?