Re: NM needs 'urandom'?

[Colin Helliwell <colin helliwell ln-systems com>]

> On 11 October 2017 at 14:56 Thomas Haller <thaller redhat com> wrote:
>
> On Wed, 2017-10-11 at 13:49 +0100, colin helliwell ln-systems com
> wrote:
>
> > I've noticed that my system has a delay during boot-up, of about
> > 20secs. It
> > *looks* like NM is waiting for urandom - there's no " NetworkManager
> > (version 1.8.2) is starting " message until right after "random:
> > nonblocking
> > pool is initialized ".
> > That might just be a coincidence (though other services etc *have*
> > started
> > by then), but if not then I'm curious what the dependency is (and
> > whether
> > there's a way round it for faster boot).
> >
> > Hi,
>
> that is quite possible that NM reads urandom.
> For example, to generate a key in /var/lib/NetworkManager/secret_key
>
> That doesn't seem wrong.
>
> We could try to call getrandom() instead, but that probably would block
> just as long.
>
> Thomas

Thanks Thomas. I found your blog related to this - https://blogs.gnome.org/thaller/category/networkmanager/ - 
is the use of urandom only related to WiFi and/or IPv6 functionality (which I don't need), and could it be 
disabled with a config setting?