[Bug 1154390] [NEW] xubuntu restart hang after install

[Delfino]

Public bug reported:

After clicking the Restart button (Step 16) when the installation finish
the machine doesn't restart.

It tries to restart but it get hung here:

------------------------
Welcome to Ubuntu Raring Ringtail (development branch) (GNU/Linux 3.8.0-12-generic x86_64)

* Documentation: https://help.ubuntu.com/

xubuntu at xubuntu:~$
Broadcast message from root at xubuntu
(unknown) at 21:03 ...
The system is going down for reboot NOW!
modem-manager[1400]: <info> Caught signal 15, shutting down...

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: iso-testing

** Attachment added: "syslog and partman"
   https://bugs.launchpad.net/bugs/1154390/+attachment/3571178/+files/syslog_and_partman.tar.gz

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https://bugs.launchpad.net/bugs/1154390

Title:
  xubuntu restart hang after install

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  After clicking the Restart button (Step 16) when the installation
  finish the machine doesn't restart.

  It tries to restart but it get hung here:

  ------------------------
  Welcome to Ubuntu Raring Ringtail (development branch) (GNU/Linux 3.8.0-12-generic x86_64)

  * Documentation: https://help.ubuntu.com/

  xubuntu at xubuntu:~$
  Broadcast message from root at xubuntu
  (unknown) at 21:03 ...
  The system is going down for reboot NOW!
  modem-manager[1400]: <info> Caught signal 15, shutting down...

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