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[Tuukka Hastrup <Tuukka.Hastrup@xxxxxx>]

I think this bug report demonstrates a significant problem in the
current boot system: the reported user-visible symptom can be caused by
a wide variety of underlying issues during the boot process. Further,
it's hard to diagnose which underlying issue affects each system .

I propose this bug number should track this difficulty of diagnosis in
the boot system. Then, the various underlying causes should be filed as
separate bugs as discovered, such as bug #838968, bug #864174 etc.

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https://bugs.launchpad.net/bugs/856810

Title:
  Boot hangs at "Booting system without full network configuration..."

Status in Linaro Ubuntu Evaluation Builds:
  Confirmed
Status in “lightdm” package in Ubuntu:
  Invalid
Status in “upstart” package in Ubuntu:
  Confirmed

Bug description:
  I installed Ubuntu 11.10 beta1 64bit on a new laptop. I rebooted and
  it came up nicely.

  After that I did "apt-get update" and "apt-get dist-upgrade" to get
  the most recent fixes and installed some additional software.

  Now I do not seem to be able to boot.

  Fist I see:
  Waiting for network configuration...

  Then I see:
  Waiting up to 60 more seconds for network configuration...

  And then it just hangs forever displaying the following:
  Booting system without full network configuration...

  Nothing happens after that, no matter how long I wait. However, I can
  switch to the console with CTRL-ALT-F1 and log in from there. The
  network is configured with DHCP and it works just fine from the
  console. I do not understand what the GUI boot display is waiting for.

  I installed the system using the alternate install CD to get LVM based
  partitions with full disk encryption.

  I noticed the bug #847782 and removed the "auto eth0" entry from my
  /etc/network/interfaces. Unfortunately that did not change anything,
  it still hangs forever.

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