What are the difference ( besides the test part) is both official Fedora
Core1 Yarrow and Official Fedora Core 2 TEST1?
The differences are legion, the most critical being the switch to a 2.6.x kernel in FC2. There are also a number of smaller changes, like all of the 'redhat-config-*' packages being renamed/rewritten to 'fedora-config-*'.
I know their test but do
they both have the same software installed?
Very nearly every package is updated in some way. Some changes are small and some are less so. libgnome goes from 2.4 to 2.5, for example.
I really like what i am
seeing on Fedora Core2 but i think i need to go to step one first before
going off and testing software of which i have not yet have any
experience of working with.
In general you'll have a much easier time dealing with release versions of software than test (prerelease) versions. There are quite a number of third-party rpms for FC1, for example, but almost none for the test (most repositories will wait for the actual release).
I also would like to know how to unistall FC2 safely so i can install
Yarrow (what does that mean?) onto my machine so i wouldn't have to deal
with the updates,blah.
What do you mean by 'safely'? 'Downgrading' is generally a potentially hairy thing to do. The safest approach would probably be to backup any personal data and perform a clean FC1 install.
Yarrow is the codename for the FC1 release. Every redhat (and now fedora) release has a codename that relates in some way to the previous codename. See http://freshrpms.net/misc/redhat-releases/ for a list and many explanations.
As for what 'yarrow' normally means... [bevan@saladin ~]> dict yarrow From WordNet (r) 2.0 [wn]:
yarrow
n : ubiquitous strong-scented mat-forming Eurasian herb of
wasteland, hedgerow or pasture having narrow serrate
leaves and small usually white florets; widely
naturalized in North America [syn: {milfoil}, {Achillea
millefolium}]