dpkg-query: error: failed to open package info file '/target/var/lib/dpkg/status' for reading: no such file or directory at the end of kubuntu desktop installation

Binary package hint: ubiquity

ISO Testing: Kubuntu Desktop i386 20110301.3

At the end of the installation there is an error about "not processing removals, since there are broken packages: g++, gcc"

From syslog:
Mar 1 20:53:40 ubuntu ubiquity: Removing fakeroot ...
Mar 1 20:53:40 ubuntu ubiquity: update-alternatives: error:
Mar 1 20:53:40 ubuntu ubiquity: scan of /target/var/lib/dpkg/alternatives failed: No such file or directory
Mar 1 20:53:40 ubuntu ubiquity:
Mar 1 20:53:40 ubuntu ubiquity: dpkg: error processing fakeroot (--purge):
Mar 1 20:53:40 ubuntu ubiquity: subprocess installed pre-removal script returned error exit status 2
Mar 1 20:53:40 ubuntu ubiquity: Removing g++ ...
Mar 1 20:53:40 ubuntu ubiquity: update-alternatives: error:
Mar 1 20:53:40 ubuntu ubiquity: scan of /target/var/lib/dpkg/alternatives failed: No such file or directory
Mar 1 20:53:40 ubuntu ubiquity:
Mar 1 20:53:40 ubuntu ubiquity: dpkg: error processing g++ (--purge):
Mar 1 20:53:40 ubuntu ubiquity: subprocess installed pre-removal script returned error exit status 2
Mar 1 20:53:40 ubuntu ubiquity: dpkg-divert: error: failed to open package info file `/target/var/lib/dpkg/status' for reading: No such file or directory
Mar 1 20:53:40 ubuntu ubiquity: dpkg-divert: error: failed to open package info file `/target/var/lib/dpkg/status' for reading: No such file or directory
Mar 1 20:53:40 ubuntu ubiquity: update-alternatives: error:
Mar 1 20:53:40 ubuntu ubiquity: scan of /target/var/lib/dpkg/alternatives failed: No such file or directory
Mar 1 20:53:40 ubuntu ubiquity:
Mar 1 20:53:41 ubuntu ubiquity: dpkg: error while cleaning up:
Mar 1 20:53:41 ubuntu ubiquity: subprocess installed post-installation script returned error exit status 2
Mar 1 20:53:41 ubuntu ubiquity: Removing gcc ...
Mar 1 20:53:41 ubuntu ubiquity: update-alternatives: error:
Mar 1 20:53:41 ubuntu ubiquity: scan of /target/var/lib/dpkg/alternatives failed: No such file or directory
Mar 1 20:53:41 ubuntu ubiquity:
Mar 1 20:53:41 ubuntu ubiquity: dpkg: error processing gcc (--purge):
Mar 1 20:53:41 ubuntu ubiquity: subprocess installed pre-removal script returned error exit status 2

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic i686
Architecture: i386
Date: Tue Mar 1 22:19:08 2011
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110301.3)
ProcEnviron:
 LANGUAGE=
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)