Re: [PATCH] write-ifcfg.sh: Don't overwrite network config in root filesystem

[Harald Hoyer <harald-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

On 25.06.2014 13:07, Gerhard Wiesinger wrote:
> On 25.06.2014 11:51, Harald Hoyer wrote:
>> On 21.06.2014 12:40, Gerhard Wiesinger wrote:
>>> This patch adds the possibility to keep the original
>>> network configuration specified in the root filesystem.
>>> This is necessary in situations with dual stack IPv4 and
>>> IPv6 configurations or different kind on nameservers
>>> (e.g. public ones at boot time, running a dns server
>>> on localhost later on).
>>>
>>> Keeping original configuration can be activated by:
>>> networkstatic=yes
>>> on the kernel boot command line.
>>>
>>>
>>> I don't understand this. It only copies to /run/initramfs. If you want to keep
>>> your original network configuration, just don't copy over the files from
>>> /run/initramfs to your root filesystem.
> 
> Hello Harald,
> 
> The topic is: /etc/sysconfig/network-scripts/ifcfg-eth0 is overwritten by
> dracut when network config is specified on boot command line (e.g. grub
> config). As normal config is different and more complex (e.g. IPv6 setup) boot
> config is different.
> 
> I found, that this patch doesn't overwrite the network config in
> /etc/sysconfig/network-scripts/ifcfg-eth0 when you specify network config on
> the boot command line.
> 
> I didn't debug into details and I'm not familiar with dracut in detail so I
> can't say why it works but it works. I think that some other code parts copy
> the initramfs afterwards to /etc/sysconfig/....
> 
> But maybe you can clarify it.
> 
> Ciao,
> Gerhard

On Fedora, this is fedora-import-state.service, which calls
/lib/systemd/fedora-import-state.

You could disable/mask that with:
$ sudo systemctl mask fedora-import-state.service