[2 days left] What’s wrong with your cloud strategy? Learn why multicloud solutions matter with Nimble Storage.Register Now

x
?
Solved

AIX TL/SP Roll Back

Posted on 2014-01-14
3
Medium Priority
?
1,770 Views
Last Modified: 2014-01-14
I have applied AIX TL/SP upgrade. I have upgraded my system from AIX 6.1TL8SP2 to AIX 6.1TL8SP3. How to I roll back the changes to AIX 6.1TL8SP2. Do I need to reboot my server to do this..???

I have applied all my changes but not committed.
0
Comment
Question by:aanya247
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 68

Accepted Solution

by:
woolmilkporc earned 2000 total points
ID: 39779946
First of all, why would you want to roll back the update?

It is almost always possible to repair the defects possibly caused by an update instead of reverting to the older level!

So which problems do you experience?

If you really want to roll back - you're lucky that (1) it's only an SP and not a TL (a TL cannot be removed) and that (2) you only applied the changes instead of also committing them.

But please be aware - you're always at risk of corrupting the whole system!
Didn't you create a bootable mksysb image before updating? If you did it might be much better to restore this image!

If you still want to reject the updates - run "smitty reject" and select everything which is displayed after you hit <F4> next to "SOFTWARE name". Choose not to remove dependent software, but be prepared that the uninstall can fail this way! On the other hand, rejecting dependents can uninstall more than expected, you might have to reinstall some packages!

In any case, run a "PREVIEW" first (really!) and take a bootable mksysb on tape/DVD/NIM (really! really!) before proceeding with the actual uninstall!

I assume you noted the many exclamation points? This should be an indication for you that I'm really afraid that the process might well fail and leave you with a corrupted system! If you want to do it anyway - it's your own risk!

Finally - of course you'll have to reboot. You rebooted after applying the SP, didn't you?

Check carefully smitty's log of the reject process. Do you see an indication that a bosboot command has been run? If you don't run

bosboot -a -d /dev/ipldevice

Failure to do this will cause the reboot to fail and your machine will bite the dust. But still no guarantee that your system will not fail due to other than bootrecord-related issues!

wmp
0
 

Author Comment

by:aanya247
ID: 39779957
Thanks wmp, I have rebooted the system after the AIX "update" to AIX 6.1TL8SP3, I just was curious to know what happens if I want to Roll back, because lately I have updated a wrong system and luckily it was a test server and what is why I have asked this question.
0
 
LVL 68

Expert Comment

by:woolmilkporc
ID: 39779968
Phew!

And I thought ...

Anyway, please take my advice to create a bootable mksysb image on tape/DVD/NIM before applying an SP or even a TL very seriously!
Having such a thing at hand to restore the OS if needed can (will) save your butt!

With a sigh of relief

wmp
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When you do backups in the Solaris Operating System, the file system must be inactive. Otherwise, the output may be inconsistent. A file system is inactive when it's unmounted or it's write-locked by the operating system. Although the fssnap utility…
Using libpcap/Jpcap to capture and send packets on Solaris version (10/11) Library used: 1.      Libpcap (http://www.tcpdump.org) Version 1.2 2.      Jpcap(http://netresearch.ics.uci.edu/kfujii/Jpcap/doc/index.html) Version 0.6 Prerequisite: 1.      GCC …
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.
In a previous video, we went over how to export a DynamoDB table into Amazon S3.  In this video, we show how to load the export from S3 into a DynamoDB table.
Suggested Courses

649 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question