REAR (Relax and Recover, relax-and-recover.org) is a free Linux tool which is 
specialized for BMR recoveries only.
For a full DR you need to care about the NW backup as well.

My specific question is whether there is experience in the field what exactly 
to include in the backup to prepare the system that NW can be installed after 
the DR. As you know NW can not be installed due to missing dependencies like 
the old X11 compatibility stuff.

Any experience is appreciated. Thanks in advance.

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