Comment 8 for bug 978489

Regression. Oneiric installs just fine. Tried again, 20120423, window disappears during copy step. For me this is a showstopper, critical. Here's syslog tail:

Apr 23 20:18:28 lubuntu migration-assistant: info: got ostype of: 'linux', mountpoint is: '/mnt/migrationassistant'
Apr 23 20:18:28 lubuntu kernel: [ 476.428206] kjournald starting. Commit interval 5 seconds
Apr 23 20:18:28 lubuntu kernel: [ 476.429118] EXT3-fs (sda7): using internal journal
Apr 23 20:18:28 lubuntu kernel: [ 476.429141] EXT3-fs (sda7): mounted filesystem with ordered data mode
Apr 23 20:18:29 lubuntu ubiquity[3434]: switched to page migrationassistant
Apr 23 20:18:38 lubuntu ubiquity[3434]: debconffilter_done: ubi-migrationassistant (current: ubi-migrationassistant)
Apr 23 20:18:38 lubuntu ubiquity[3434]: Step_before = stepMigrationAssistant
Apr 23 20:20:48 lubuntu install.py: Exception during installation:
Apr 23 20:20:48 lubuntu install.py: Traceback (most recent call last):
Apr 23 20:20:48 lubuntu install.py: File "/usr/share/ubiquity/install.py", line 689, in <module>
Apr 23 20:20:48 lubuntu install.py: install.run()
Apr 23 20:20:48 lubuntu install.py: File "/usr/share/ubiquity/install.py", line 129, in run
Apr 23 20:20:48 lubuntu install.py: self.copy_all()
Apr 23 20:20:48 lubuntu install.py: File "/usr/share/ubiquity/install.py", line 465, in copy_all
Apr 23 20:20:48 lubuntu install.py: self.db.progress('SET', 10 + copy_progress)
Apr 23 20:20:48 lubuntu install.py: File "/usr/lib/python2.7/dist-packages/debconf.py", line 60, in <lambda>
Apr 23 20:20:48 lubuntu install.py: lambda *args, **kw: self.command(command, *args, **kw))
Apr 23 20:20:48 lubuntu install.py: File "/usr/lib/python2.7/dist-packages/debconf.py", line 65, in command
Apr 23 20:20:48 lubuntu install.py: self.write.flush()
Apr 23 20:20:48 lubuntu install.py: IOError: [Errno 32] Broken pipe
Apr 23 20:20:48 lubuntu install.py: