AIX 64-bit question

[bluetok]

I have AIX 5.1 running on an F50. It is 32-bit hardware, however a while back I thought I read somewhere that you can run a command to see if the machine is able to emulate a 64-bit kernel. To my knowledge I thought this was possible but now that I rebuilt the server and I want to actually do it, I can't find anything on it. Is it possible to emulate a 64-bit kernel on AIX if I only have 32-bit hardware?

Thanks,
Mike

 

[aixmurderer]

From the AIX5.2 differences document:

http://www.redbooks.ibm.com/redbooks/SG245765.html

Only 64-bit CHRP-compliant PowerPC machines are supported for the 64-bit kernel.

prtconf will show you the following below somewhere in the list, typically a 43P cannot run AIX 5.2. This I caqn confirm as I did try and install it without success.


pSeries 610:

INSTALLED RESOURCE LIST

The following resources are installed on the machine.
+/- = Added or deleted from Resource List.
* = Diagnostic support not available.

Model Architecture: chrp
Model Implementation: Multiple Processor, PCI bus


43P:

INSTALLED RESOURCE LIST

The following resources are installed on the machine.
+/- = Added or deleted from Resource List.
* = Diagnostic support not available.

Model Architecture: rspc
Model Implementation: Uni-Processor, PCI bus


IBM Certified Confused - MQSeries
IBM Certified Flabbergasted - AIX 5 pSeries System Administration
MS Certified Windblows Rebooter

 

[adm786]

hi,

Here is the procedure to check the kernel and upgrade it to 64-bit.
Filesets needed

You must have bos.64bit fileset installed on the system. Run,

# lslpp -l bos.64bit
Fileset Level State Type Description (Uninstaller)
----------------------------------------------------------------------------
bos.64bit 5.1.0.50 C F Base Operating System 64 bit Runtime


Hardware required

You must have 64-bit hardware to run 64-bit applications. As root run,

# bootinfo -y
64

If you get a output of 64 than the machine's hardware architecture is 64-bit.

Changing Kernel to 64-bit

# ln -sf /usr/lib/boot/unix_64 /unix
# ln -sf /usr/lib/boot/unix_64 /usr/lib/boot/unix
# lslv -m hd5
hd5:N/A
LP PP1 PV1 PP2 PV2 PP3 PV3
0001 0001 hdisk0

# bosboot -ad /dev/<ipldevice>
# shutdown -Fr

When the system is up, run,

# bootinfo -K
64

You should get an output of 64, which ensures you that the kernel is now 64-bit.

Bye