From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
Subject: Re: [9fans] how to combine 3ed and 4ed on one real fake worm fs?
From: forsyth@vitanuova.com
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Date: Mon, 29 Apr 2002 15:55:40 +0100
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>>>>Or just give up on 3th ed files? (I won't believe that :-)

>>that's what i did: after all, how likely is it that i'll go back?
>>the old source is still in the dump, and if i ever need to run

just to make that less ambiguous: i kept the file system but
did
	for(a in all-but-adm){mv $a 3e_$a}
then installed, then once i'd copied changes from lib/ndb,
cpurc, termrc, and a few other essential changes for my system,
i removed the 3e_* directories, leaving only a 4th edition system,
with 3rd edition in the dump along with 2nd and possibly even
a 1st-and-a-bit.

DON'T rush off to try it without careful investigation.  that part's fine, but there is much more
to do to install onto a file server.   there are several little traps
for the unwary.  i'll post a longer note about what i did
a bit later, once i'm awake.