In my case (I use a labtop with wireless connection only), it broke after the last upgrade.
I found out that there was a tiny difference in the file
'/etc/init/rc-sysinit.conf'
which seems to inhibit sysinit to start when the network isn't ready.
When I used the old version everything worked again.
old start condition:
"start on filesystem"
new start condition:
"start on filesystem and net-device-up IFACE=lo"
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