Sergio Lindo wrote:

Hi all,

For those interested on Z systems, but without access to an IBM mainframe, you should know that IBM offers a free Z/VM VM with SLE12-SP3 https://www.ibm.com/it-infrastructure/linuxone

There is also Hercules. I ran Linux/390 on Hercules around 2001/2002. -- Per Jessen, Zürich (5.6°C) http://www.cloudsuisse.com/ - your owncloud, hosted in Switzerland. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

John Paul Adrian Glaubitz wrote:

On 1/30/19 9:58 AM, Per Jessen wrote:

...

...

For those interested on Z systems, but without access to an IBM mainframe, you should know that IBM offers a free Z/VM VM with SLE12-SP3 https://www.ibm.com/it-infrastructure/linuxone

There is also Hercules. I ran Linux/390 on Hercules around 2001/2002.

Oh yeah, I recently saw a very interesting and hilarious talk by a Dutch guy on the Vintage Computing Festival Berlin:

...

https://media.ccc.de/v/vcfb18_-_96_-_en_-_201810141000_-_running_your_own_ma...

He's giving an intro on how to use Herculus, very entertaining.

I was doing it professionally - at the time, I ran the central and southern Europe Linux/390 programme for BEA. -- Per Jessen, Zürich (1.9°C) http://www.cloudsuisse.com/ - your owncloud, hosted in Switzerland. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

Sergio Lindo wrote:

Hi Jessen,

...

El 30 ene 2019, a las 9:58, Per Jessen escribió:

There is also Hercules. I ran Linux/390 on Hercules around 2001/2002.

I have heard about Hercules, and that it was very slow, but I never tried it.

Yes, it's an emulator, but even on on semi-decent hardware is worked very well. (and that was 18 years ago). I don't remember if we had 3GHz CPUs :-) I used it for demoing BEA Weblogic on the mainframe. With a JVM on top, it was a bit slow I admit.

I will give it a try, but I assume that those LinuxONE VMs have much better performance. I have already tried those and they work very fast and smooth. I will try to make a comparison and inform about the results.

I'm sure you'll have much better performance. It's pretty cool that IBM is making those available. /Per -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

Hi John,

El 30 ene 2019, a las 9:51, John Paul Adrian Glaubitz escribió:

I'm doing a lot of works on exotic ports, in particular in Debian, so I would generally be interested. However, I think that s390x is rather boring because everything works already. IBM has a lot of people working on upstream projects, so starting a Linux distribution is basically a matter of bootstrapping and then just let the build machines do the rest.

Well, at the moment we don’t have any working ISO nor disk image to run openSUSE Tumbleweed or Leap.

There might be some packages here and there that need attention, but the vast majority builds and works just fine on s390x. I think, currently it's only mozjs60 which is broken and therefore causes issues for Debian on s390x because half of GNOME depends on a JavaScript engine to work.

I can see a lot of work to do here: https://build.opensuse.org/project/show/openSUSE:Factory:zSystems

I would be more interested on working on openSUSE for sparc64. […] Another port that I am interesting in is m68k […]

I haven’t worked on those architechtures. But, my goal to get Tumbleweed on Z systems is because I want to be able to run openQA-worker on it. Someone created a package virtio-gpu, which is available for the current version for Tumbleweed which allows to generate a virtual display and serve it through VNC, so that a qemu VM can be controlled by os-autoinst. The other part of the story is that I am interested in those mainframes and want to learn more about them.

We have plenty of sparc64 machines available which could be set up as build machines for openSUSE. Someone would just have to enable the architecture in OBS.

I suppose that other people could be interested on that. But, at the moment that is out of the scope for me. At least until I feel I have learnt enough about s390x. Kind Regards, Sergio-- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org