After loading an new OMV 3.X guest into Virtual Box (using the "bridged" network adapter mode):
On the first boot, OMV's boot dialog stated; " No network interface" or " No Interface Found ", or something to that effect. (Normally, DHCP assigns an IP address which is shown in the terminal console.) Rebooting the OMV guest had no effect on this condition.
The solution was simple.
As root, on the command, type in omv-firstaid and select 1. Simply configuring the adapter attached to eth0, even for DHCP, corrects this issue.
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