How to move 13.1 to a new file system

Hi all!

I always was happy with the ReiserFS as file system, because it always served me well.

Prior to the installation of openSUSE (oS) 13.1, using GParted I formatted the partitions that were be used for the installation of 13.1 with ReiserFS, and I afterwards installed openSUSE 13.1 on these.

All worked fine, and oS 13.1 runs fine.

Now I read that there isn't any tool to defragment ReiserFS partitions. But to defragment, that's just what I may want to do one day.

So I would like to move to another filesystem now.

I do have spare partitions on that hard disc, that can be used for a temporary backup. So my idea was to backing up everything,
re-format the ReiserFS partitions, and copy the files back in place.

But copying all with e.g. `cp', or dolphin (from KDE), is that sufficient? Can that work?

Thanks Mike