odd homework looking to upgrade sticks..

Hello,

I'm trying to do my homework preparing to upgrade to bigger sticks.

I got a spare 64gb stick and I was thinking to size it like a 32gb to
prepare the upgrade to the new arriving supply.
My purpose is keep my working system resizing partitions and copy back
files from old stick.
I tried to mantain the same fdisk layout and grow it from there, it was
promising at first glance and the stick boot up. But unfortunately when
I *newfs* the partitions and copy back files to them the result is a
blank screen immediatly before the boot:

NO OS or ERR M

I passed the night on pax without luck, maybe the sock files
maybe the kernel stuff of /usr (I have no idea at this point)..

Any help is appreciated.


-- Daniele Bonini