Installer crashes before installing boot loader

[Josh Wbagel]

I've attempted to install Ubuntu 11.10 about 8 times within the last 24 hours. Sometimes it freezes completely on "saving installed packages", but most of the time it scans the CD-ROM/USB, says "An attempt to configure apt to install additional packages from the CD-ROM has failed", and the installer shuts down and tells me the installation is complete. However, if I wait long enough to restart, the message "Installer has crashed" appears, which took me to this site after clicking on a few buttons. Also, if I attempt to boot my system after this supposed installation, the blinking underscore flashes until I turn off my computer because my boot loader is either non-existent or broken. Ubuntu installer crashes every time I attempt to install the operating system. It only worked the first time, but I messed up my root password and was forced to format the hard drive and reinstall Ubuntu. Since then, it has not worked at all.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: ubiquity 2.8.7
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
CasperVersion: 1.287
Date: Wed Nov 30 21:22:20 2011
LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcEnviron:
 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:
Nov 30 21:22:03 ubuntu plugininstall.py: Traceback (most recent call last):
Nov 30 21:22:03 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1641, in <module>
Nov 30 21:22:03 ubuntu plugininstall.py: install.run()
Nov 30 21:22:03 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 55, in wrapper
Nov 30 21:22:03 ubuntu plugininstall.py: func(self)
Nov 30 21:22:03 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 158, in run
Nov 30 21:22:03 ubuntu plugininstall.py: self.configure_apt()
Nov 30 21:22:03 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 580, in configure_apt
Nov 30 21:22:03 ubuntu plugininstall.py: raise install_misc.InstallStepError("AptSetup failed with code %d" % ret)
Nov 30 21:22:03 ubuntu plugininstall.py: InstallStepError: AptSetup failed with code 141
Nov 30 21:22:03 ubuntu plugininstall.py:

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[dino99 (9d9)]

This version has expired