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Upgrade AIX V 4.3.1 to 5l V 5.2

I am working with a client that has a installation of AIX V 4.3.1.

We are planning to upgrade them to AIX 5l V5.2 in the near future.
Do I need to take them to AIX 4.3.3 and then to 5.2 in a two step process or can I expect to go directly to 5.2 with ease? :-)


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robertfwoods
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robertfwoods
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cjs2895Commented:
No, you can do a painless migration straight to 5.2.

(It doesn't hurt to run a mksysb first though)
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robertfwoodsAuthor Commented:
Well that is a comfort.
Now on further examination I have a customer with 4.3.0.

Do you think that conversion will be as easy?

Bob Woods
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cjs2895Commented:
Yep. It will be just as easy. You only really need to worry if you have a customer upgrading from AIX 3.x, or if you have some esoteric 3rd party hardware installed (ie EMC has different powerpath drivers for AIX 5, certain communications hardware IBM stopped supporting a decade ago, etc). Anything you might need in the way of updated 3rd party device drivers you should either put them into an lppsource (NIM installs) or in /tmp for a manual install. You might also need to upgrade your firmware (Early S70/S7As need latest firmware before AIX 5 is loaded, I'm not aware of any other model that does).
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gheistCommented:
You can upgrade - but note that mksysb is incomplete and if you eventualy dump your system you will need backups from other vg's and raw database logical volumes
(worked for me laike a charm on nonimportant system holding no unrebuildable data)
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robertfwoodsAuthor Commented:
Sorry I thought I had accepted this last month.
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