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[Scott Moser <smoser@xxxxxxxxxx>]

Public bug reported:

In changes made under bug 1621615 (specifically a1cdebdea), we now
expect that there may be a 'ip6=' argument on the kernel command line.
The changes made did not test the case where there is 'ip6=' and no
'ip='.

The code currently will return with no network configuration found if
there is only ip6=...


Related bugs:
 * bug 1621615: network not configured when ipv6 netbooted into cloud-init 
 * bug 1621507: initramfs-tools configure_networking() fails to dhcp IPv6 addresses
 * bug 1635716: Can't bring up a machine on a dual network (ipv4 and ipv6)

** Affects: cloud-init
     Importance: Medium
         Status: Confirmed

** Affects: cloud-init (Ubuntu)
     Importance: Medium
         Status: Confirmed

** Changed in: cloud-init
       Status: New => Confirmed

** Changed in: cloud-init
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1639930

Title:
  initramfs network configuration ignored if only ip6= on kernel command
  line

Status in cloud-init:
  Confirmed
Status in cloud-init package in Ubuntu:
  Confirmed

Bug description:
  In changes made under bug 1621615 (specifically a1cdebdea), we now
  expect that there may be a 'ip6=' argument on the kernel command line.
  The changes made did not test the case where there is 'ip6=' and no
  'ip='.

  The code currently will return with no network configuration found if
  there is only ip6=...


  Related bugs:
   * bug 1621615: network not configured when ipv6 netbooted into cloud-init 
   * bug 1621507: initramfs-tools configure_networking() fails to dhcp IPv6 addresses
   * bug 1635716: Can't bring up a machine on a dual network (ipv4 and ipv6)

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