Re: OS/400 on mambo emulator

Vlad:

We've answered that question already.

IBM i, AIX run on POWER from IBM.

There are various Linux distributions that have also been compiled for the
POWER 64bit system as well.
Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


On Thu, May 28, 2020 at 10:51 AM Vlad Korge <vladkorge@xxxxxxxxxx> wrote:

Can you pls clarify what you mean by the "IBM i-specific hardware"?
As per my understanding, a nowadays IBM i is running on exactly the same
hardware as AIX or Linux called IBM Power Systems.

Cheers,
Vlad.


-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf
Of Yvan Janssens
Sent: Friday, May 29, 2020 1:17 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: OS/400 on mambo emulator

IBM i (as in, the current versions) always need PowerVM; even if you run
it 'natively' on the hardware, the Power Hypervisor will always run in LPAR
0, and IBM i will run in LPAR 1, with LPAR 1 having allocated all available
resources.

Older OS/400 versions did run 'natively' on hardware without PowerVM, but
this hardware was rather custom. On those machines, the service processor
brings up the OS and acts as a bootloader. When debugging SCSI issues and
doing a trace, you can clearly see the boundary there. This is very similar
to the CISC (pre-PowerPC-AS versions).

Emulation is currently just not possible; there's no way to bootstrap IBM
i, there's no support for IBM i-specific hardware in emulators either. If
you want to learn how to use IBM i, get a USRPRF on pub400.com, or get
yourself a developer LPAR somewhere.

/y

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