how to configure a 64 bit HPUX 11.00 OS to boot in a 32 bit mode

[Rajan_sa]

Hi ,

I have a PA-RISC2.0 architecture Hardware with me which has a 64 bit HPUX 11.00 installed on it.To compile & test some source codes I require to boot thy system in a 32 bit kernel mode.Is it possible to do & how to do the same...

[Shaikh Imran]

Hi,

I think you have to re-install the O.S.
in 32-bit & test your software.
I am not aware of any such booting procedure.

Regards,

[Sunil Sharma_1]

I don't think you can boot 32 bit mode kernel.

This selection is available only at the installation time only. All 64 Bit server doesn't supported 32bit kernel installation.

Sunil

[Rajan_sa]

Thks for the replies but like in solaris where u just have to change the eeprom seetings in the boot-file parameter & rebooting the system & then checking with isainfo -kv command or in AIX
by just changing the soft link to the /usr/lib/boot/unix file & executing the bosboot -ad /dev/ipldevice command & rebooting the system & checking with the bootinfo -k command.The desired o/p is achieved.So I think so there must be a way to do the same in HPUX...

[Shaikh Imran]

hi,

As i have mentioned above i have not heard of any such thing with hp but,
follow the link below :

http://devresource.hp.com/drc/STK/docs/refs/3264interop.jsp


to get some 32-64-bit interoperatibilty
system calls.

see if it helps you

Regards,

[Sunil Sharma_1]

No. There is no way to do this in HP UX environment.

Solaris support this but HP UX don't.

As i said it's not even possible to install 32 Bit OS in some of new HP Servers as these are pure 64 bit servers.

Sunil

[ranganath ramachandra]

just being curious, what kind of code is it which you need to test ? i am wondering why it would strictly require a 32-bit kernel.

[Rajan_sa]

As per your querry Mr Ranganath, for our development enviroment I need to compile & run an application on AIX/SOLARIS/HPUX in both 32 as well as 64 bit enviroment.I can achieve the same on AIX & Solaris with only one instance of server OS installed on the respective h/w but to do the same on HPUX it seems its not possible.As I have an PA_RISC2.0 h/w which supports both 32/64 bit I think so I have to reinstall another server on the same H/W in a 32 bit mode which I think so will be time consuming & will take a lot of manhours as have to install & apply the needed software & relevant patches again.

Thks again for all of you people there for your kindly replies

[ranganath ramachandra]

you may already know this: the 64-bit kernel supports development, build and execution of both 32-bit and 64-bit applications.

you can build a 32-bit application with the default compiler flags. you can use the "+DD64" flag to build 64-bit applications (there may be more changes required).

a 32-bit application will get a 32-bin runtime environment and a 64-bit application will get a 64-bit runtime environment.

so unless the code you wish to develop is very specific to 32-bit kernel itself, you may be able to do what you want on the 64-bit kernel.

[Rajan_sa]

The source code are 32 bit kernel specific .. so I need to build it in a 32 bit enviroment only....
Thks for the inputs...

[Rajan_sa]

With the inputs given to me by the members have come to a conclussion tht the intended activity is'nt possible on HPUX...