Hello Mathieu, or anyone else affected,

Accepted nplan into artful-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/nplan/0.32~17.10.4 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 on 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-artful to verification-done-artful. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-artful. In either case, without details of
your testing we will not be able to proceed.

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

** Changed in: nplan (Ubuntu Artful)
       Status: New => Fix Committed

** Tags added: verification-needed-artful

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu.
https://bugs.launchpad.net/bugs/1769682

Title:
  NFS-based remote root hangs when running 'netplan apply'

Status in initramfs-tools package in Ubuntu:
  New
Status in netplan.io package in Ubuntu:
  New
Status in nplan package in Ubuntu:
  Invalid
Status in initramfs-tools source package in Xenial:
  New
Status in netplan.io source package in Xenial:
  Invalid
Status in nplan source package in Xenial:
  New
Status in initramfs-tools source package in Artful:
  New
Status in netplan.io source package in Artful:
  Invalid
Status in nplan source package in Artful:
  Fix Committed
Status in initramfs-tools source package in Bionic:
  New
Status in netplan.io source package in Bionic:
  Fix Committed
Status in nplan source package in Bionic:
  Invalid

Bug description:
  [Impact]
  Netboot users with a remote filesystem over NFS (possibly over other 
networked filesystems).

  [Test cases]
  1) Boot a system with its root filesystem over NFS.
  2) Run 'sudo netplan apply'
  3) Validate that the system remains responsive and keeps connectivity over 
the same IP address  as it had.

  [Regression potential]
  This SRU changes network properties, and enforces that networkd does not 
release and re-request an IP address from DHCP when it is restarted. 
Environments relying on the IP release/renew behavior may find themselves 
staying on the previous IP address, which might negatively impact connectivity. 
Changes in connectivity on a system running netplan should be investigated as a 
potential regression from this SRU. Other regression possibilities would 
include failure to get a new IP address over time (usually seen as losing 
connectivity) or possible IP conflicts on a network.

  ---

  With a system booted on the network, with its remote root fs on NFS:

  Running 'netplan apply' restarts systemd-networkd, which releases the
  IP received from DHCP. With no IP (and and IP potentially changing),
  the NFS server can't be reached so the system hangs.

  'netplan apply' or restarting systemd-networkd should not affect teh
  system, it should continue working normally despite "changing" network
  states, as long as the effective IP remains the same.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1769682/+subscriptions

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