Need Hints on Upgrading a Sun/2 to a Sun/3

[Dieter H. Zebbedies]

In article <629 at bu-cs.UUCP> bzs at bu-cs.UUCP (Barry Shein) writes:
>>From: starner at bigburd.UUCP
>>I will soon be upgrading a Sun/2 File server to a Sun/3

>To do the SUN3.0 upgrade do a full dump (level 0) and proceed as it
>says in the manual, I had no troubles. Before you bring down the SUN2.0

>There are ways around doing the full backup/restores but I just went
>for it so I could repartition things better

We just did this last week, and could *not* use setup because of some
idiosyncracies of our configuration.  In particular, we have a
CDC-9771 (825Mb on a Xylogics card) that spins at 2160 rpm instead of
the canonical 3600.  Setup likes to do a "newfs" on / and /usr
partitions, but this defaults to 3600 so we blow revs all the time
without the -r flag...

We ended up just bypassing setup completely and extracting the files
out of the distribution tapes (they are all tar format) and merging
them into the right places.  Worked fine.

One suggestion, though:  When you finish the install, touch a file
".3.0-installed" or something, then merge in your old stuff and
specify the -m flag on tar.  That way you can do a "tar / -newer
.3.0-installed -print" to find the things that have changed since the
install, and it makes the next rev *real easy*.  (Disadvantage is you
munge the create times and this breaks makefiles, etc)

We also tend to mimic the distribution filesystem under /u/local (i.e.
bin, man, lib, src, etc, etc..) and keep the distribution *totally*
virgin.  Links to the right places then are placed in the distribution
to the local equivalents (like /usr/lib/lisp to /u/local/lib/lisp...)

Just some suggestions, hope they help.
  (yes, it is *easy* to get away with not doing a full dump
	when you have to backup 800+Mb's on 1/4" carts :-)
--
Dieter H. Zebbedies ('dee-ter 'zeb-ed-eez)
 Zebb-Hoff Mach. Tool's Automated Manufacturing Project
    USnail: 9535 Clinton Rd, Cleveland, OH 44144 (+ 1 216 631 6100)
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