ubuntu installer crashes at the end (confguring apps)

[axx]

Manually created LUKS encrypted partitions, installed Ubunu 12.04 to one parition for /, one for /home and a non-encrypted /boot.

Installer crashed righ at the end, having copied the files and being in the process of configuring the applications.

 lsb_release -rd
Description: Ubuntu 12.04.1 LTS
Release: 12.04

ubiquity:
  Installed: 2.10.20

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.10.20
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-generic x86_64
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
CasperVersion: 1.315
Date: Tue Feb 5 02:11:40 2013
InstallCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- keyboard-configuration/layoutcode=fr keyboard-configuration/variantcode=oss
LiveMediaBuild: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
ProcEnviron:
 TERM=unknown
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Exception during installation:
Feb 5 01:11:33 ubuntu plugininstall.py: Traceback (most recent call last):
Feb 5 01:11:33 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1728, in <module>
Feb 5 01:11:33 ubuntu plugininstall.py: install.run()
Feb 5 01:11:33 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 55, in wrapper
Feb 5 01:11:33 ubuntu plugininstall.py: func(self)
Feb 5 01:11:33 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 265, in run
Feb 5 01:11:33 ubuntu plugininstall.py: self.db.progress('SET', self.count)
Feb 5 01:11:33 ubuntu plugininstall.py: File "/usr/lib/python2.7/dist-packages/debconf.py", line 60, in <lambda>
Feb 5 01:11:33 ubuntu plugininstall.py: lambda *args, **kw: self.command(command, *args, **kw))
Feb 5 01:11:33 ubuntu plugininstall.py: File "/usr/lib/python2.7/dist-packages/debconf.py", line 65, in command
Feb 5 01:11:33 ubuntu plugininstall.py: self.write.flush()
Feb 5 01:11:33 ubuntu plugininstall.py: IOError: [Errno 32] Broken pipe
Feb 5 01:11:33 ubuntu plugininstall.py:

[Brian Murray (brian-murray)]

This first error in the log is actually the following:

Feb 5 01:11:00 ubuntu ubiquity: Traceback (most recent call last):
Feb 5 01:11:00 ubuntu ubiquity: File "/usr/bin/apt-clone", line 117, in <module>
Feb 5 01:11:00 ubuntu ubiquity: args.source, args.destination, args.new_distro_codename, protect_installed)
Feb 5 01:11:00 ubuntu ubiquity: File "/usr/lib/python2.7/dist-packages/apt_clone.py", line 327, in restore_state
Feb 5 01:11:00 ubuntu ubiquity: self._restore_sources_list(statefile, targetdir)
Feb 5 01:11:00 ubuntu ubiquity: File "/usr/lib/python2.7/dist-packages/apt_clone.py", line 366, in _restore_sources_list
Feb 5 01:11:00 ubuntu ubiquity: tar.extract(self.TARPREFIX+"etc/apt/sources.list", targetdir)
Feb 5 01:11:00 ubuntu ubiquity: File "/usr/lib/python2.7/tarfile.py", line 2076, in extract
Feb 5 01:11:00 ubuntu ubiquity: tarinfo = self.getmember(member)
Feb 5 01:11:00 ubuntu ubiquity: File "/usr/lib/python2.7/tarfile.py", line 1796, in getmember
Feb 5 01:11:00 ubuntu ubiquity: raise KeyError("filename %r not found" % name)
Feb 5 01:11:00 ubuntu ubiquity: KeyError:
Feb 5 01:11:00 ubuntu ubiquity: "filename './etc/apt/sources.list' not found"