I have two machines that are both with
Ubuntu 12.04 64 bit. Now I've upgraded one into the
Ubuntu 14.04 64 bit. And I want to upgrade the other into 14.04. Is it possible to copy directly the downloaded packages into the other machine to less the upgrading process?
Another question is, should I recompile the softwares(e.g. boost, mpich2, and so on) that have compiled with
12.04 64bit when the system is upgraded into
14.04? And should I re-install those softwares? Is there any problems of compatibility?