Re: [Xen-devel] [OSSTEST PATCH v2 07/19] ts-host-install: don't use the new nic naming scheme

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

Wei Liu writes ("Re: [Xen-devel] [OSSTEST PATCH v2 07/19] ts-host-install: 
don't use the new nic naming scheme"):
> On Fri, Dec 15, 2017 at 03:45:06PM +0000, Julien Grall wrote:
> > I dug a bit more, so 'force interface' will create the
> > /etc/udev/rules.d/70-persistent-net.rules for the installer initrd.
> > 
> > However, it does not get copied to the installed Debian. For the moment, I
> > workaround this by copying the file in overlay/ so it get installed.
> 
> I tried that as well, but that's wrong.
> 
> That would make the generated rule get copied in to the host initrd,
> which ends up being used as the guests initrd (at least on x86), then
> the guest will hijack the host's IP address (!).

???

1. persistent-net.rules contains information saying "if nic with
address aa:bb:cc:dd:ee:ff shows up, call it eth2; also, do not call
anything else eth2".  So it has nothing to do with ip addresses.

2. initrds don't need to bring up the network so I'm not sure why this
would end up there.  If it does, we could add something to the
initramfs-tools config to stop it.

Ian.

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