[PATCH] dracut-module-setup: Make kdump shell honour and check for PEERDNS

[Vivek Goyal]

On Fri, Sep 12, 2014 at 07:56:10AM -0400, Minfei Huang wrote:

[..]
> The network will get the DNS from the /etc/resolv.conf. The config 
> resolv.conf generates by the dhcp server, also we can modify it 
> manually. But the configuration which we add manually to the resolv.conf 
> will be lost when the network restart.
> 
> So in order to solve this problem, we can add the option of PEERDNS=no 
> to the ifcfg-{*}, the resolv.conf file will not be changed again by the 
> dhcp server.
> 
> The dracut will use own default configuration (in dracut directory) to 
> configure the network, whatever the custom modify the configuration in 
> /etc/dhclient.conf.
> I send a patch to the dracut community. The patch can only do one thing 
> that it will append the valid content from /etc/dhclient.conf to 
> ${initdir}/etc/dhclient.conf.

So what does dhclient.conf do?
> 
> We(Dave and me) think that the configuratin need to be valid in the 
> second kernel, if the custom set the own configuration to the 
> dhclient.conf.
> So we should ignore the option of PEERDNS, even if set the option 
> PEERDNS=no in ifcfg-*.
> And the kdump will have no change for this BUG.

Sorry, I still did not get that why should we ignore PEERDNS if
specified in ifcfg*.

Thanks
Vivek