Backup of a "working" Matrix system.

hello,
I have set a "correct" linux distribution on my Matrix.
I would like to test others OS but be able to roll back to this working system.
How can I backup it on a computer (windows, linux) ?
Could someone provide an howto ?
Thanks
BR
nwies
I have set a "correct" linux distribution on my Matrix.
I would like to test others OS but be able to roll back to this working system.
How can I backup it on a computer (windows, linux) ?
Could someone provide an howto ?
Thanks
BR
nwies