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Re: [Xen-users] Is it possible to copy the contents of one domU to anoth

To: Rudi Ahlers <rudiahlers@xxxxxxxxx>
Subject: Re: [Xen-users] Is it possible to copy the contents of one domU to another domU?
From: Eamonn Kenny <Eamonn.Kenny@xxxxxxxxx>
Date: Wed, 10 Sep 2008 14:36:33 +0100
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Hi Rudi,

# create two directories for mount points
mkdir -p /mnt/oldroot /mnt/newroot

# create the 30G LVM
lvcreate -L 30G -n VolGroup00-LogVol01 /dev/VolGroup00
mkfs -t ext3 /dev/VolGroup00-LogVol01

# mount both LVMs
mount /dev/mapper/VolGroup00--LogVol00 /mnt/oldroot
mount /dev/mapper/VolGroup00--LogVol01 /mnt/newroot

# sync the data
rsync -au /mnt/oldroot/* /mnt/newroot
Alternatively use cp -ax as described in the Xen manual.

#unmount partitions
umount /mnt/oldroot

# change networking on new domU
chroot /mnt/newroot
edit /etc/hosts, /etc/resolv.conf, /etc/sysconfig/network, /etc/sysconfig/network-scripts/ifcfg-*
exit
umount /mnt/newroot

Hope the syntax is right, but you get the idea...

Rudi Ahlers wrote:
Hi all

I hope this can be solved.

I have a 50GB CentOS domU, and I want to copy the contents of the domU to another domU, of smaller size (30GB) - is this possible?

--

Kind Regards
Rudi Ahlers
------------------------------------------------------------------------

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--
_________________
With Best regards,
Eamonn Kenny
_________________________________________________________________________
Dr. Eamonn M. Kenny,          Telephone:               00+353-1-8961536
Webcom-G Manager,             Facsimile:               00+353-1-6772204
Computer Architecture Group,  Email:             Eamonn.Kenny@xxxxxxxxx
Computer Science Department,  www:    http://www.cs.tcd.ie/Eamonn.Kenny
Rm-005, CALab1, INS building, Map:    http://www.tcd.ie/Maps/lloyd.html
TCD, Dublin 2, Ireland.       Map: http://www.tcd.ie/Maps/tcd_east.html
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