[Snort-users] How to upgrade from Snort 1.9.1 to 2.0.1 Please....

[Snortty]

I'm running snort 1.9.1 on Solaris 8, it works fine,
just reporting lots of errors when run it after
downloading new rules. 

I plan to upgrade it to Snort 2.0.1, but want to make
sure before going ahead - better having the old snort
working than a newer one which is not.

Do I have to remove snort 1.9.1 first and how to do it
the right way? or just install the new one on top of
the old one. 

I did which snort, it reports:
# which snort
/usr/local/bin/snort
# 

I'm very new in this, so please advise. 

Thanks alot.
Snortty. 

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