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Full Discussion: Taking an image or clone of Red Hat server
Operating Systems Linux Red Hat Taking an image or clone of Red Hat server Post 302952942 by Padow on Monday 24th of August 2015 12:37:42 PM
Old 08-24-2015
Best practice would be to build the new system from scratch and re-deploy applications. the second best option would be to install your applications in a dedicated filesystem/location like /apps and use rsync to copy that over to a new system. Next would be to buy software that will do "bare-metal" copies or backup/restores of linux systems.

If you want to do it quick and dirty, put the existing boot/OS hard drive in a server and a blank identical hard disk. Boot the system in rescue mode, ensure that the good copy of the data (you can use fdisk and look for the one that is partitioned) is on the first disk (/dev/sda) and do:

Code:
dd if=/dev/sda of=/dev/sdb

Padow
 

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LEARN ABOUT CENTOS

suffix2instance

SUFFIX2INSTANCE(8)					      System Manager's Manual						SUFFIX2INSTANCE(8)

NAME

       suffix2instance - Directory Server script for finding a backend name

SYNOPSIS

       suffix2instance [-Z serverID] -s suffix [-h]

DESCRIPTION

       Maps a suffix to a backend name.  This script can be run while the server is running, or stopped.

OPTIONS

       A summary of options is included below:

       -Z Server Identifier
	      The server ID of the Directory Server instance.  If there is only one instance on the system, this option can be skipped.

       -s Suffix DN
	      The suffix DN to be mapped to a backend name.  Example: "dc=example,dc=com"

       -h
	      Display the usage.

EXAMPLE

       suffix2instance -s 'dc=example,dc=com'

       suffix2instance -Z instance3 -s 'dc=example,dc=com'

DIAGNOSTICS

       Exit status is zero if no errors occur.	Errors result in a non-zero exit status and a diagnostic message being written to standard error.

AUTHOR

       suffix2instance was written by the 389 Project.

REPORTING BUGS

       Report bugs to http://bugzilla.redhat.com.

COPYRIGHT

       Copyright (C) 2013 Red Hat, Inc.

								    Mar 5, 2013 						SUFFIX2INSTANCE(8)
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