SUMMARY: Solaris 2.5 Migration

From: Derald McMillan (
Date: Fri Jan 12 1996 - 10:20:19 CST

Original Question,

: I am going to have to upgrade a SPARCserver 20 running Solaris 2.4 to Solaris 2.5
: to prepare for a migration to UltraSparcs. The machine I am upgrading is my NIS+
: root master server as well as my DNS server and NFS server.
: My question is how easy is the upgrade from 2.4 to 2.5 and will any of my NIS+
: information be lost? I will summarize the replies to the list.

I recieved one reply and it was from Thomas Reynolds <>
who stated that he had no experience with servers, but that an upgrade went
just fine on a SS5 running Solaris 2.4 with no NIS or NIS+ responsibilities.

I went ahead and upgraded the machine and everything went fine. All of my
NIS+ information was preserved and it generally went off without a hitch.
That was the upgrade. I then tried to move in an Ultra 1 to replace the
SS20 and since they are different architectures, things got a little hairy.
Basically you have to remember to transfer all of the config files without
transferring any of the kernel or /dev files. This gets a little tricky
in the /etc directory, but overall I think it went well. I was able to keep
all of my NIS+ tables throughout the whole transfer and even got my credentials
back after I remembered the /etc/.rootkey file!

Basically, if you want to upgrade the OS of a machine, no problem. If you are
upgrading in preparation for a swap out of machines (up to an Ultra), don't
bother. All of the config files are the same anyway.


Derald H McMillan III ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Systems Engineer Webmaster SolTech Systems Corporation Pi Kappa Phi Fraternity (803)556-2500 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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