ubiquity crashed with InstallStepError in configure_apt()

[Oddround]

Binary package hint: ubiquity

Not sure if this counts as a bug.
Yes, ubiquity crashed on install.
BUT I was installing Ubuntu 10.04 LTS NetBook Remix on a VirtualBox VM version 3.1.6 and using default settings.
Host is a ASUS X5DIN laptop.
Please draw your own conclusions.

ProblemType: Crash
DistroRelease: Ubuntu 10.04
Package: ubiquity 2.2.24
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
Architecture: i386
Date: Sat May 1 20:40:57 2010
ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
InterpreterPath: /usr/bin/python2.6
LiveMediaBuild: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity --greeter --only
ProcEnviron: Error: [Errno 13] Permission denied: '/proc/2195/environ'
PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', '--greeter', '--only']
SourcePackage: ubiquity
Title: ubiquity crashed with InstallStepError in configure_apt()
UserGroups:

[Oddround (oddround)]

Not sure if this counts as a bug.
Yes, ubiquity crashed on install.
BUT I was installing Ubuntu 10.04 LTS NetBook Remix on a VirtualBox VM version 3.1.6 and using default settings.
Host is a ASUS X5DIN laptop.
Please draw your own conclusions if this is valid as a bug.

[Oddround (oddround)]

A re-install on the same VM worked.

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #573087, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.