"manual" type interfaces should allow the mtu stanza

[Bryan Quigley]

[Impact]
 * Using mtu options on manual interfaces setup with ifupdown will not work.

[Test Case]
 * Edit /etc/networking/interface and modify a manual interface such as:

auto eth1
iface eth1 inet manual
    mtu 9000

* Bring down the interface and back up.
$ ifdown eth1
$ ifup eth1

* Check mtu:
$ ip link show eth1

It should show mtu 9000

[Regression Potential]
 * This code is already in Trusty.

--

1. Ubuntu 12.04/14.04

3. Expected: That MTU will be set with the mtu option
4. What happens: You need to use pre-up/post-up ifconfig mtu to set the option

[Stéphane Graber (stgraber)]

Can you try the package I just uploaded to ppa:stgraber/experimental?

[Bryan Quigley (bryanquigley)]

That appears to have fixed the MTU issue... tested with bonds/vlan setup.

[Launchpad Janitor (janitor)]

This bug was fixed in the package ifupdown - 0.7.47.2ubuntu2

---------------
ifupdown (0.7.47.2ubuntu2) trusty; urgency=medium

  [ Stéphane Graber ]
  * Allow setting the MTU and HWADDR on manual interfaces. (LP: #1294807)
  * The above change also means that manual interfaces will now be
    brought up and down (ias many users expected until now).
  * Disable link.defn as it's not covering all the cases supported by
    the vlan and bridge hooks and so causes more harm than good at this
    point. (LP: #1295304)
  * Also enable network-interface-container for OpenVZ. (LP: #1294155)
  * Update networking.init to exit 1 on reload when on an upstart system.
  * Pass --force to ifdown in network-interface to silence errors on
    non-existing interfaces. (LP: #1295620)

  [ Dimitri John Ledkov ]
  * Prevent the ability to stop or restart networking service
    interactively. As that is not supported. Networking job is only stopped
    during shutdown sequence. (LP: #1072518)
 -- Stephane Graber <email address hidden> Wed, 19 Mar 2014 18:04:49 -0400

[Chris J Arges (arges)]

This also affects Precise.

[Chris J Arges (arges)]

I've backported and tested this patch on precise and it allows me to set MTU on manual interfaces.

[Chris J Arges (arges)]

uploaded for precise

[Brian Murray (brian-murray)]

Hello Bryan, or anyone else affected,

Accepted ifupdown into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/ifupdown/0.7~beta2ubuntu11 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Bryan Quigley (bryanquigley)]

Confirmed that the new package on precise fixes it.

[Launchpad Janitor (janitor)]

This bug was fixed in the package ifupdown - 0.7~beta2ubuntu11

---------------
ifupdown (0.7~beta2ubuntu11) precise; urgency=low

  [ Stéphane Graber ]
  * Allow setting the MTU and HWADDR on manual interfaces. (LP: #1294807)
 -- Chris J Arges <email address hidden> Thu, 27 Mar 2014 11:34:01 -0500

[Colin Watson (cjwatson)]

The verification of the Stable Release Update for ifupdown has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.