[Bug 107432] [NEW] modprobe -Q is not 'silent enough' / ifup is too picky about return status.

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Daniel Holbach (dholbach):

Binary package hint: module-init-tools

In order to demonstrate this bug, all which is required is a kernel with
IPv6 support compiled in, and an installation of Ubuntu Feisty Fawn.

Setup IPv6 parameters on an interface (does not need be 'live', junk
will work):

auto eth1
iface eth1 inet static
        address         10.0.0.177
        netmask         255.255.255.0
        gateway         10.0.0.1

iface eth1 inet6 static
        address         2001:470:1f00:488:1::179
        netmask         80
        gateway         2001:470:1f00:488:1::1

Now, bring the interface up with verbosity on:

ifup -v eth1

It will fail, and the spot will be unknown.

ifup -nv eth1

This will show it fails on 'modprobe -Q ipv6'

Modprobe is returning a 'false' status, causing ifup to fail,
consequently, IPv6 configuration on the interface fails.

I file this under module-init-tools because the -Q option is intended to
be entirely silent, so a false return value, in my opinion, contradicts
this objective operating mode, and should not occur.  (In theory,
modprobe -Q where-are-my-pants should return 0, in my opinion.)

** Affects: ifupdown (Ubuntu)
     Importance: Medium
     Assignee: Andy Whitcroft (apw)
         Status: Fix Released

-- 
modprobe -Q is not 'silent enough' / ifup is too picky about return status.
https://bugs.launchpad.net/bugs/107432
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