Re: NetworkManager-wait-online is still utterly, and completely, broken

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On Mon, 2017-12-18 at 09:56 -0700, stan wrote:
> On Mon, 18 Dec 2017 07:19:02 -0500
> Sam Varshavchik <mrsam@xxxxxxxxxxxxxxx> wrote:
> 
> > When we had initiscripts, I forget which one it was, but there was
> > one that read all the config files, and enabled those interfaces. And
> > stuff that depended on the network being up ran after that. Simple.
> > Easy. So, again: is it unreasonable to be able to start things that
> > require the statically- assigned IP addresses after they actually are
> > assigned to their network ports? Did something change, in the world
> > we live in, where this is not possible any more? And what exactly did
> > change, that made this a logically impossible, herculean task?
> 
> I think you are talking about the days before we had multi-threaded
> boot, and boot was deterministic.  Boot went to multi-threaded, and so
> became non-deterministic, in order to shorten boot time.  Maybe
> part of the solution is a kernel (or systemd) switch that says, "I
> don't care if boot takes 10 or 20 seconds (or a minute) longer, I want
> it to be deterministic." If that switch was set, then things would
> always run sequentially in a fixed order, unlike now.
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Many thanks for the suggestions & feedback

AFAIK I have not changed anything and I cannot get the machine to fail
again with the problem of DHCP running after the nfs mount attempts.

Yesterday I could not get it to boot cleanly in about 10 attempts!

Maybe it was a network problem, maybe a hardware problem?

Maybe some form of race condition with NetworkManager-wait-online and friends

I will bring a second F27 machine up to the same "update" state
and see what happens



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