With systemd 219-4ubuntu6, ifup fails on startup

[Michael Marley]

After updating to systemd 219-4ubuntu6, the ifup services for both network cards in my system fail to start with "/sbin/ifup: failed to open lockfile /run/network/.ifstate.lock: No such file or directory". My networks still come up because I am using network-manager, but without network-manager, it seems the network would not come up.

[Michael Marley (mamarley)]

The problem seems to be that ifup@.service currently isn't sequenced to run after systemd-tmpfiles-setup.service (both of those are configured to run after local-fs.target). If I override ifup@.service and set "After=local-fs.target network-pre.target systemd-tmpfiles-setup.service", it starts properly.

[Didier Roche-Tolomelli (didrocks)]

@Michael: did you try with 219-4ubuntu7? I know that scott did some more fixes to the network functionalities following his previous patch.

@Scott: mind having a look?

[Michael Marley (mamarley)]

219-4ubuntu7 fixes the problem. Thanks!

[Scott Moser (smoser)]

Hi,
  I dont actually know why 219-4ubuntu7 would fix the problem.
  I think it probably just change timing of a very small race window.