Removing -n option from udhcpc

[Denys Vlasenko]

On Mon, Feb 5, 2018 at 8:10 PM, Daykin, Evan <daykin at frib.msu.edu> wrote:
> Good Afternoon,
>
>
>
> We have a lot of devices which were shipped running Busybox 1.20.2. We ran a
> test to see what would happen in the event of a power failure. When power
> was restored, the devices all booted much faster than the switches they were
> connected to, so udhcpc gave up and exited,

Please be more specific. They exited how? what are the messages from them?

> leaving the devices unable to
> obtain a DHCP lease.  We tried setting “udhcpc_opts” to –background in the
> interfaces file, to no avail. As we understand it, -n and –b are not
> mutually exclusive, thus the client will still give up and exit after a few
> attempts.

Of course. If you gave -n to udhcpc, it will exit if lease is not obtained.
If you don't want this, don't give it the -n option.