Looking for "Gotchas", Pt. II (pre-summary)

From: Jim Harmon (jharmon@telecnnct.com)
Date: Tue Apr 01 1997 - 17:01:49 CST

I've gotten several very quick and very friendly responses to my request
for advice on "upgrading from SunOS 4.1.3 to Solaris 2.5.1".

Primarily (and correctly) you folks said the following:

   "... I hope you know that you can't upgrade from Solaris 1.x
    [SunOS 4.1.x] to Solaris 2.x. You have to do a complete

I didn't mention that I will be removing the system drive with the
SunOS 4.1.3 load out of the machine, and installing a clean new
disk as the system disk for 2.5.1.

We've already migrated most user accounts to our primary NIS server, and
plan to install Solaris 2.5.1 compatible versions of our applications.

So to summarize so far:

Your (sun-manager) advice is treat this as a "new install" (not upgrade)
and we should expect it to take anywhere from 2-3 days to 2-3 weeks to
accomplish, and I should plan to fall-back to 4.1.3 if we have any major

Additionally, we should try setting up the entire configuration on a
parallel box instead of on the actual machine, and once the new box is
successfully performing it's duties, swap it for the old box in a single

Some new information:

        We have been advised to move from UUCP to SMTP
        We need to add POP, IMAP.

Original post:

   Hi everyone,

   I've been tasked with upgrading a SunOS 4.1.3_DBE installation to
   Solaris 2.5.1 on a SPARC2 server.

   Configuration is 48MB RAM, tty console (no video card) and SCSI

   This machine is our backup NIS/DNS server (primary is SunOS 4.1.4_DB)
   --We don't intend to update to NIS+ yet.-- That could be 6-12 months
   down stream.

   It also serves NFS mounted user accounts

   XNTP, UUCP, Sendmail, INN, CERN HTTPD, and will server CAP and SAMBA
   when we're through with this upgrade.

   Any gotchas, watch-out-fors, do-you-really-wannas?


   Jim Harmon                           The Telephone Connection
jim@telecnnct.com                          Rockville, Maryland

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