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Date: Fri, 31 Dec 2010 00:32:36 -0300
From: Leonardo Lazzaro <lazzaroleonardo@...il.com>
To: owl-users@...ts.openwall.com
Subject: Re: VZ container migration

excellent . I just only change the OS harddisk, add the vz container .confs
and everything is working!

thanks a lot!


On Sun, Dec 19, 2010 at 6:49 PM, Solar Designer <solar@...nwall.com> wrote:

> On Sat, Dec 18, 2010 at 10:21:26AM +0300, gremlin@...mlin.ru wrote:
> > Backup your containers in Proxmox:
> > 0. vzctl stop 1234
> > 1. tar -C /path/to/ve/roots/1234 -czf ve-1234-`date +%Y%m%d`-backup.tgz .
> > 2. cp /etc/vz/conf/1234.conf .
> >
> > Then transfer these two files to Owl server and restore them:
> > 4. mkdir -p /new/path/to/ve/roots/1234
> > 5. tar -C /new/path/to/ve/roots/1234 -xzf ve-1234-*-backup.tgz
> > 6. cp 1234.conf /etc/vz/conf/
> > 7. Edit /etc/vz/conf/1234.conf if necessary
> > 8. vzctl start 1234
> >
> > (Of course, you have to edit commands as necessary)
>
> A minor correction: the options to tar when creating the archive should
> preferably include "S" ("handle sparse files efficiently"), and when
> extracting the archive they should include "p" ("extract all protection
> information") and "--numeric-owner" (don't try to resolve user and group
> names stored in the tarball using the new host system's /etc/passwd
> entries, which are not valid for the container's system being restored).
> So the commands may be like:
>
> tar -C /vz/private -cSf 1234.tar 1234
>
> and:
>
> tar -C /vz/private --numeric-owner -xpf 1234.tar
>
> It is also possible to avoid creating this temporary tarball, such as by
> running tar-over-ssh.
>
> Alexander
>

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