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Re: [Xen-users] Convert CentOS system to Xen image?

To: "Ross S. W. Walker" <rwalker@xxxxxxxxxxxxx>
Subject: Re: [Xen-users] Convert CentOS system to Xen image?
From: Igor Chubin <igor@xxxxxxx>
Date: Wed, 2 Apr 2008 16:36:00 +0300
Cc: James Pifer <jep@xxxxxxxxxxxxxxxx>, Xen List <xen-users@xxxxxxxxxxxxxxxxxxx>
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On Mi, Apr 02, 2008 at 09:19:19 -0400, Ross S. W. Walker wrote:
> James Pifer wrote:
> > Attempted to do this using netcat + ssh and here's my next problem. The
> > CentOS server is using LVM, so instead of getting an img file of around
> > 8 gig that I expected, I got one that is 18 gig, or the size of the LV. 
> > 
> > I tried it anyway and I get a valid boot sector not found. 
> > 
> > Any suggestions?
> Don't do netcat, create a fresh PV with the same installed packages
> as on the old machine and copy the configuration of the old server
> that is pertinent. You could look at creating a kickstart file to
> have those packages installed during the initial install, or just
> install base/core and add in by hand the missing packages via yum.

You can use dd or cat (+ netcat | ssh) 
and it will copy raw image,

but creating LVM and filesystems on its logical volumes
has several advantages:

1. You can filesystems with any layout and sizes
2. You transfer only data and not "freespace" as in case of dd/netcat usage


1. You should create LVM and FS first. 

> For data partitions like /home you can do a dump, sftp, and restore.

Also you can use rsync
(it should be installed on both hosts).

> -Ross
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WBR, i.m.chubin

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