You've already received good responses to the original question. 

But there may be more when the question is looked at from a different 
direction.  Why would you need a script to reply to upgrade prompts?

Could you not have one "golden image" Linux server disk that is cloned for 
each server to use (or linked R/O)?  That's the beauty of running under 
z/VM... you can have one Linux "system disk", all linked read-only by many 
servers.  Then individual server upgrades are made simply by changing a 
LINK statement in their directory entry, shutting them down. logging them 
off, and XAUTOLOGing them back on.  They come up with the new (presumable 
well-tested) Linux distro maintenance.

Obviously, there are a lot of steps involved to get to that point - but it 
should be worth the effort of you have many Linux servers 
- you will save lots of disk space
- you know that all servers are running the same exact tested/audited 
system
- upgrade implementations become extremely easy (and more successful)

There are many IBM Redbooks, Redpapers, and other doc related to this 
method.  There is a 100% chance of someone else sharing (before the end of 
the day) pointers to current-state methods to do this.

Mike Walter
Hewitt Associates
The opinions expressed herein are mine alone, not my employer's.



Tom Duggan <dugg...@emigrant.com> 

Sent by: "The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU>
08/05/2010 08:09 AM
Please respond to
"The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU>



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Subject
Pushing replies to Linux SLES 11 upgrade from a  REXX EXEC






I hope this gets through...(and a Hello! from a new member if it does!)

I've been assigned a recent project of trying to automate
the initial responses of a SLES 11 upgrade to servers
running under z/VM 5.3.

I'm trying to automate the replies up until the point in the
process where SSH is launched to start yast.

I've tried PUSH and QUEUE without success.  I'm more of a VM'er
than "Linuxite" and just looking for a nudge in the right direction.

I'm working on a 3270 emulator macro (Passport PC to Host) at present,
which is a little tedious.

What I'm seeing is after the guest machine's reader is IPL'd, CMS
goes away and we're in a Linux environment, no?






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