ubuntu 12.04 - root space full How to take backup? -


i 'm using ubuntu , windows in parallel. in hard disk left space windows , linux also. disk apace full. how can transfer data root other derive without affecting applications? plz suggest me best approch i'm attaching screen shot of disk usage analyzer!

i experienced same kind of problem , move /home partition mounted device in 2-steps after logging in root(on 'ubuntu 12.04.1 lts' server).
step 1: move /home /mounteddevice/home
step 2: update /etc/passwd file replacing 'home' 'mounteddevice/home'

, other directory consumes more space /lib , /var/lib , searching proper solution move /lib , /var/lib


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