Re: Cannot retain Network config with SLES 10 in LPAR

[Pete Helgren <Pete@xxxxxxxxxx>]

Given the dearth of responses, I finally figured this out on my own:

Fix is to edit the resolver.conf file and remove extraneous "in use" 
stuff.  Then I added the nameserver entries.

Going back into the Network card configuration, I used the ifup option 
and I again edited the hostname and name server entries, turned off the 
IPV6 option and then saved the changes.  This time it saved without 
disconnecting the VNC session. I then had Internet connectivity and 
after a bounce, still had network and VNC capability.

Fixed.

Pete


Pete Helgren wrote:
> I just brought up a Linux  LPAR on a Power 5 520 using the HMC (SLES 10 
> SP2) .  It took me a while to get my head around it (again) but after 
> getting the networking sorted out so I could use VNC to complete the 
> installation, all was well.
>
> When I tried to get out to the Internet from SLES I couldn't.  So I 
> checked out the network settings using YaST guessing I had missed the 
> gateway setting.  So I bring up YaST and it asks whether or not I want 
> to go the "User Controlled with Network Manager" route or the 
> "Traditional Method with ifup".  I chose Network Manager, made the 
> change using the "Hostname and Name Server" option. SLES then proceeded 
> to install the network manager package.  After that completed, I took 
> the option to finish and then it went through the usual routine of 
> saving the settings.  However, it hung for quite a while at the 
> activating network services stage and then my VNC session ended.  I 
> figured that was normal because it probably reset the adapter so I 
> started the VNC session again and now it wouldn't connect at all.  I 
> couldn't even ping the server from the i5/OS side.  After scrambling 
> around the Internet for answers, I figured out how to access the command 
> line from the HMC terminal session and eventually learned how to use the 
> ifconfig command to see how the adapter was configured.  It had no 
> network address or subnet!  So, again learning the ifconfig commands, I 
> managed to add the static IP and subnet as well as the gateway manually 
> from the command line.
>
> All was well.  But when I bounced SLES I lost the settings I had added 
> so I went back and added them using ifconfig at the command line again 
> (the IP and subnet WERE there).
>
> Once VNC was running, I jumped back into YaST and went back to configure 
> the network card.  This time when I tried to change the "Hostname and 
> Name SErver" option I got a message that said:
>
> "The resolver configuration file (/etc/resolv.conf) has been temporarily 
> modified by /usr/bin/NetworkManager.  You have two choices...."
>
> The choices were to go ahead and modify it or skip it.  I chose to 
> modify but again, when I clicked finish, it eventually hung, I lost the 
> VNC connection and had to use the command line to restore the network 
> settings using ifconfig.
>
> OK!  Here is the question (having searched the net for and answer): Is 
> there a way to manually change the config so that it *doesn't* revert 
> back when I bounce the server?  ifconfig seems to only make a temporary 
> change.  Or, is there a way to fix the problem I am having attempting to 
> configure this through YaST?  It looks like something is preventing the 
> network services from starting.
>
> Thanks,
>
> Pete
>
>
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