Please don't say "may or may not." The requirements for Linux/390 are very clear. G2 or higher. Halfword Immediate instruction microcode level. Prior to that, the vintage patches are available, although certainly _not_ desirable. IEEE FPU and performance in general will be an issue unless you're just playing or developing a proof of concept.
The space created by "no support" by IBM and/or the distributors has been filled by very able companies such as Sine Nomine and others. Don't let IBM's lack of support worry anyone. I'm sure you can get equivalent or superior support for less money elsewhere. Mark Post -----Original Message----- From: Richard Lauck [mailto:rlauck@;csihome.com] Sent: Friday, October 25, 2002 12:20 PM To: [EMAIL PROTECTED] Subject: RE : Installing Linux/390 on a 9672 R14... Linux may or may not run on the older mainframes. There are instances of S/390 Linux running on Rx1 and even 2003 machines but there is no floating point support so it runs degraded. Running or not on these older boxes, it is not supported by IBM or any of the distributors. This may or may not be of concern. Richard W. Lauck Cornerstone Systems, Inc. Sr. Systems Programmer IBM Certified S/390 Parallel Sysplex Systems Programmer IBM Certified S/390 Parallel Sysplex Operator IBM Parallel Sysplex Top Gun (425)489-4579 Direct - Home Office (425)453-5166 x9024 Voice Mail (425)486-4501 Home (888)505-4534 Pager Monteleone <[EMAIL PROTECTED]> Sent by: Linux on 390 Port <[EMAIL PROTECTED]> 10/25/2002 08:22 AM Please respond to Linux on 390 Port To: [EMAIL PROTECTED] cc: Subject: RE : Installing Linux/390 on a 9672 R14... I use three LPAR native on a 9672 R14 without problem. Have a look www.muvrini.com Gerard MONTELEONE Ingenieur Systeme & Reseau ( 04.95.23.68.09 / 06.87.72.70.32 S.I.T.E.C zi du Vazzio 20090 AJACCIO Cedex -----Message d'origine----- De�: Linux on 390 Port [mailto:LINUX-390@;VM.MARIST.EDU] De la part de Adam Thornton Envoy�: vendredi 25 octobre 2002 15:50 ��: [EMAIL PROTECTED] Objet�: Re: Installing Linux/390 on a 9672 R14... On Fri, Oct 25, 2002 at 08:23:27AM -0500, McKown, John wrote: > All the Linux/390 versions out there require a Generation 5 (-Rx6), > Generation 6 (-Rx7), or zArchitecture machine (z/800 or z/900). The older > generation 3 machines, which is what a -R14 is, do not have all the new > hardware instructions needed to run Linux/390. > This is untrue. Linux will run just fine on G3s and G2s with the Halfword Immediate instructions--my P/390, a G2 machine, is perfectly capable of running Linux. IBM will, however, not support Linux in such a configuration. There are organizations that sell Linux support for these configurations, however. One thing to be aware of is that you do not get hardware IEEE floating point. Thus any Linux program that uses floating point support will be very slow, as it will have to go through the kernel emulation layer to do IEEE floating point. This is why, in my famous "cough syrup" benchmark, I found out just how painfully slow perl was on a P/390. Adam
