Fedora 14 for System Z needs testers!

[Phil Knirsch]

Hi everyone.

As the subject says, we're closing in on the final official Fedora 14 
release for System Z. All know issues have by now been fixed and we're 
now looking for a final round of testing.

In case you want to give us a hand in testing you can find more details 
about how to help on Karsten Hopp's latest blog entry:

http://karstenhopp.livejournal.com/2482.html

Thanks & regards, Phil

-- 
Philipp Knirsch              | Tel.:  [phone]
Supervisor Core Services     | Fax.:  [phone]
Red Hat GmbH                 | Email: Phil Knirsch <pknirsch(a)redhat.com&gt;
Hauptstaetterstr. 58         | Web:   http://www.redhat.com/
D-70178 Stuttgart, Germany
Motd:  You're only jealous cos the little penguins are talking to me.

[Philip Pinto]

Philipp,


It's been on my list - I will try to get to this over the next several days
- or over the weekend 

-thanks
Phil Pinto

-----Original Message-----
From: s390x-bounces(a)lists.fedoraproject.org
[mailto:[e-mail]] On Behalf Of Phil Knirsch
Sent: Wednesday, November 24, 2010 12:39 PM
To: For testers of Fedora Core development releases
Cc: fedora-s390x(a)lists.fedoraproject.org; Linux on 390 Port
Subject: Fedora 14 for System Z needs testers!

Hi everyone.

As the subject says, we're closing in on the final official Fedora 14
release for System Z. All know issues have by now been fixed and we're now
looking for a final round of testing.

In case you want to give us a hand in testing you can find more details
about how to help on Karsten Hopp's latest blog entry:

http://karstenhopp.livejournal.com/2482.html

Thanks & regards, Phil

-- 
Philipp Knirsch              | Tel.:  [phone]
Supervisor Core Services     | Fax.:  [phone]
Red Hat GmbH                 | Email: Phil Knirsch <pknirsch(a)redhat.com&gt;
Hauptstaetterstr. 58         | Web:   http://www.redhat.com/
D-70178 Stuttgart, Germany
Motd:  You're only jealous cos the little penguins are talking to me.
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[Jim Stephens]

On 11/24/2010 2:31 PM, Philip L Pinto wrote:
>  Philipp,
>  
I have the goods and have booted up the system.  The thing I'm puzzled 
over is the network.

I have ubuntu 10.10 with the 3.07 hercules source built running the system.

Fedora 14 is configured with lcs from what I saw, and I see that 
hercules immediately opens tun (in this case /dev/net/tun) when it start 
up pre ipl.

I IPL and watch all the messages go by, and when I see it get to the net 
startup it says "helper threads started" or some such, I assume one for 
each network pipe.

The thing I'm used to seeing is that in the host ubuntu environment I do 
an ifconfig, and still only see eth0 and lo0.  No sign of tun0.

I am starting hercules with the hercules.exec. which sets up the 
iptables stuff, and I'm running as root, so all devices and so forth 
should not have permissions problems.

I think i should add a route for 192.168.200.xx to the tun0 to get to 
the system, but w/o that, any ideas on what to do to get to the 
192.168.200 net?

I have a good DHCP, but the settings for the net are both in the 
settings on the z system net settings, the herc.cfg, so there is no way 
to flip it to dhcp (unless I may be told how to do it from the command 
line on the z linux side.

Thanks
Jim

[Harold Grovesteen]

Jim Stephens wrote:

> On 11/24/2010 2:31 PM, Philip L Pinto wrote:
>   
>
> >Philipp,
> >
> >    
> >
> I have the goods and have booted up the system.  The thing I'm puzzled 
> over is the network.
>
> I have ubuntu 10.10 with the 3.07 hercules source built running the system.
>
> Fedora 14 is configured with lcs from what I saw, and I see that 
> hercules immediately opens tun (in this case /dev/net/tun) when it start 
> up pre ipl.
>
> I IPL and watch all the messages go by, and when I see it get to the net 
> startup it says "helper threads started" or some such, I assume one for 
> each network pipe.
>
> The thing I'm used to seeing is that in the host ubuntu environment I do 
> an ifconfig, and still only see eth0 and lo0.  No sign of tun0.
>  
That sounds like a Ubuntu issue. The Herules scripts provided for Fedora 
on System z assume you are also running on a Fedora/Red Hat system on 
the host machine. Not surprisingly that is what the Fedora team does. 
There can be permissions issues related to the Hercules binary and its 
use of tun. This depends on how you installed the Hercules system. 
Distribution quirks enter into this, but you should eventually get it to 
work.

> I am starting hercules with the hercules.exec. which sets up the 
> iptables stuff, and I'm running as root, so all devices and so forth 
> should not have permissions problems.
>
> I think i should add a route for 192.168.200.xx to the tun0 to get to 
> the system, but w/o that, any ideas on what to do to get to the 
> 192.168.200 net?
>  
Trouble shooting recommendation: get reachability to a host IP address 
from the Hercules guest working first. Then get reachability outside of 
the host. Fealure to reach the host is caused by tun and guest interface 
related issues. The second is usually routing issues back to the guest 
from local routers or devices when the guest appears to reside on a 
different subnet.

It is recommended that the guest use an IP address from the same subnet 
on which the host interface resides. By enabling proxy ARP on this host 
interface, things just work. You will need an appropriate default route 
in the Hercules guest regardless.

How much of this is being handled by the Fedora startup scripts I do not 
recall. It has been some time since I looked at this.

Harold Grovesteen

> I have a good DHCP, but the settings for the net are both in the 
> settings on the z system net settings, the herc.cfg, so there is no way 
> to flip it to dhcp (unless I may be told how to do it from the command 
> line on the z linux side.
>
> Thanks
> Jim
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