Bug#809166: networking.service does not prevent ifdown with network file systems

[Guus Sliepen]

On Fri, Jan 15, 2016 at 09:14:52AM +0100, Guus Sliepen wrote:

> > The "manual" stanza isn't there just for network-manager. LTSP chroots don't
> > have network-manager installed by default.
> > A netbooted system needs these 2 things from ifupdown:
> > 1) the scripts at /etc/network/if-up.d to get executed for the boot
> > interface,
> > 2) while preventing the boot interface from being DOWNed at shutdown.

ifupdown version 0.8.9 will not bring the link down of manual interfaces
during shutdown (but every "down" and "post-down" keyword is still
executed).

ifupdown 0.8.9 can also mark interfaces with the "no-auto-down" keyword,
which causes those interfaces to be ignored during "ifdown -a". This is
a more explicit way to tell an interface should not be brought down
during shutdown. An example:

auto eth0
no-auto-down eth0

iface eth0 inet dhcp
	...

I hope this will help.

-- 
Met vriendelijke groet / with kind regards,
      Guus Sliepen <guus at debian.org>
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