[CentOS] Network services start before network is up since migrating to 7.2

Wed Dec 23 09:11:05 UTC 2015
Gordon Messmer <gordon.messmer at gmail.com>

On 12/22/2015 09:45 AM, Sylvain CANOINE wrote:
> I'm confused. I updated two more servers this afternoon, and... all is working well. The services start in correct order. Even after three reboots.
> So only one of the (now) five updated servers doesn't start properly.
> Then what is the difference ? All I see for now is the network.target unit seems not active on the failing server.
> (failing) # systemctl status network
> ● network.service - LSB: Bring up/down networking

I'm a little confused, too.  But, it might be more informative to query 
the system for "network.target" than "network.service" since the former 
is the one missing.

# rpm -V systemd
# locate network.target
# systemctl status network.target
● network.target - Network
    Loaded: loaded (/usr/lib/systemd/system/network.target; static; 
vendor preset: disabled)
    Active: active since Wed 2015-12-16 20:19:26 PST; 6 days ago
      Docs: man:systemd.special(7)

Dec 16 20:19:26 x systemd[1]: Reached target Network.
Dec 16 20:19:26 x systemd[1]: Starting Network.