reinstall world

[Jason Dusek]

Hi,

I gave my entire laptop's hard drive to FreeBSD, but I am beginning to have 
second thoughts - a lot of my devices don't work. I think I might try dual 
booting FreeBSD and, say, Gentoo. So this will probably work, because I'm only 
using a small portion of the disk at present:

   17 root # df -m
   Filesystem  1M-blocks Used Avail Capacity  Mounted on
   /dev/ad0s1a       247  123   104    54%    /
   devfs               0    0     0   100%    /dev
   /dev/ad0s1g      8931    0  8216     0%    /home
   /dev/ad0s1e       989    0   910     0%    /tmp
   /dev/ad0s1f     24790 3621 19186    16%    /usr
   /dev/ad0s1d       989   37   872     4%    /var

What is a good way to make space on my disk? If I just repartition /usr and 
/home, I'll probably screw them up. So if I tar up  each of the partitions, and 
maybe etc and some other junk as well, and then:

   1. Reformat and reinstall. Put on Gentoo and BSD.
   2. Go into the BSD slice and nuke everything, then unpack my tarballs.

do I have a good chance of everything working right?

- Jason