Can we change HP-Unix from 64-bit to 32-bit kernel? If so how?

[GnanaShekar]

Hi,

Can we change HP-Unix from 64-bit to 32-bit kernel? If so how?
I am able to do it in Solaris, I hope this can be done in HP-Unix too.

Please suggest.
Thanks & Regards,

[James R. Ferguson]

Hi:

You can if your hardware supports a 32-bit kernel. This is a major "reinstall". Why would you want to do this? A 64-bit kernel runs 32-bit applications fine.

There are so many limitations with shared memory on 32-bit systems that I can't imagine why you would want to move backwards in capability.

Regards!

...JRF...

[Patrick Wallek]

What model of machine?

If it is a more recent 64-bit ONLY machine (like an L, N, and any rp) then NO you cannot. Those machines can only run a 64-bit kernel. But, as James said, 64-bit HP-UX can run 32-bit applications just fine.

If you machine is 32/64 bit capable (like R, D, K series) then yes, but the caveats are as James stated (you MUST re-install and select 32-bit).

[rick jones]

You can only run a 32-bit HP-UX 11* kernel on PA-8200 and earlier CPUs. PA-8500 and later only support a 64-bit kernel under 11*

To what end do you wish to run a 32-bit kernel? Do you still have a kernel component that is 32-bit only?

[Andrew Merritt_2]

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