query about HPUX 10.20 upgrade

[Siva Prasad]

I have HPUX10.20 operating system on my machine.I want to upgrade it to 11.0. I do not want to do a fresh install of 11.0. So will there be any data loss if i upgrade. Is there any tool to perform the upgrade from 10.20 to 11.0.

[MarkSyder]

There is a tool called HP-UX but it is best avoided.

If you have operating system and application data on separate discs there is no reason why there should be any data loss.

Take an fbackup (preferably two) before you start the cold install and you will be able to restore any files to your root disc without overwriting more recent files placed there by the upgrade.

Mark Syder (like the drink but spelt different)

[Mark Grant]

I would really suggest that you do do a fresh install. I know it's annoying but it really is the route most likely to give you a trouble free future. If you can do the fresh install it is definately the best route to take.

[Jeff Schussele]

Hi Siva,

I agree - 10.2 -to-> 11.x upgrade via the upgrade utility are problematic at best.
Backup the data on tape & export the VGs for import post-upgrade. You could/should also backup important configuration files to another system & bring them back over post-upgrad.

I've never had trouble with cold installs but have *always* had trouble with the upgrade when 10.2 to 11.x. But the 11.0 -to-> 11.11 is much better & safer.

My 2 cents,
Jeff

[Bill Hassell]

The upgrade process is detailed in www.docs.hp.com but as many senior system admninstrators have found, only the very simplest configurations will succeed. The problems with a tru upgrade are quite complex and will require a lot of time to resolve. If this is a production machine, you should allow for about a week of downtime to fix everything. You can save a LOT of time by using disk mirroring to switch between the new upgraded system and back to 10.20 if needed.

[MarkSyder]

Err - that was an unfortunate slip on my part to say that HP-UX was best avoided.

I meant to say Update-UX is best avoided (or Windows - you choose).

Mark

[shan_7]

Hi,

go to this link . there you acn find for your upgradation tips.


http://us-
support3.external.hp.com/iv/data/documents/DE_SW_UX_swrec_EN_01_E/Update11i.pdf

with cheers,

Shankar Ganesh

[shan_7]

Hi,

Before processing the upgradation, you have follow this steps.

1. Full ignite backup of your system which going to upgrade.

# make_recovery -v -A -d /dev/rmt/0mn

2. Full data backup from system

# tar -cvf fs

then you can proceed for upgrdation.

But, once i tried but not success.

Best of luck

Shankar