unistall ubuntu

[Jorge Ibáñez]

error al formatear las particiones y eliminar ubuntu

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.10.29
ProcVersionSignature: Ubuntu 3.13.0-32.57~precise1-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic i686
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
Date: Mon Jan 4 10:14:28 2016
InstallCmdLine: BOOT_IMAGE=/vmlinuz root=/dev/sdb6
MarkForUpload: True
ProcEnviron:
 TERM=unknown
 PATH=(custom, no user)
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Exception during installation:
Jan 4 09:43:12 ernesktop plugininstall.py: Traceback (most recent call last):
Jan 4 09:43:12 ernesktop plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1730, in <module>
Jan 4 09:43:12 ernesktop plugininstall.py: install.run()
Jan 4 09:43:12 ernesktop plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 55, in wrapper
Jan 4 09:43:12 ernesktop plugininstall.py: func(self)
Jan 4 09:43:12 ernesktop plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 155, in run
Jan 4 09:43:12 ernesktop plugininstall.py: self.configure_python()
Jan 4 09:43:12 ernesktop plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 297, in configure_python
Jan 4 09:43:12 ernesktop plugininstall.py: cache = Cache()
Jan 4 09:43:12 ernesktop plugininstall.py: File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 105, in __init__
Jan 4 09:43:12 ernesktop plugininstall.py: self.open(progress)
Jan 4 09:43:12 ernesktop plugininstall.py: File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 150, in open
Jan 4 09:43:12 ernesktop plugininstall.py: self._cache = apt_pkg.Cache(progress)
Jan 4 09:43:12 ernesktop plugininstall.py: SystemError: E:Could not open file /target/var/lib/dpkg/status - open (2: No such file or directory), E:The package lists or status file could not be parsed or opened.
Jan 4 09:43:12 ernesktop plugininstall.py: