[CentOS] Copying a live system

Tue May 3 18:16:10 UTC 2016
Timothy Murphy <gayleard at eircom.net>

m.roth at 5-cent.us wrote:

>> I want to backup my current CentOS-7.2 system to another drive.
>> Is it safe to copy the system while it is running?
>> Eg by
>> mount /dev/sdb5 /mnt
>> rsync -HPaxvz /. /mnt/
>> I've found contradictory advice on the web.
> Yes. When we're cloning a system, such as a compute node in a cluster, or
> rsync upgrading, we
> rsync -HPavxz /. newmachine:/new/.
> rsync -HPavxz /boot/. newmachine:/boot//new/.

Thanks very much to you, and all who responded to my query.

Timothy Murphy  
gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin