ubiquity crashed with ValueError in command() - I/O operation on closed file

[F5]

Binary package hint: ubiquity

when staring ubuntu apear this error

ProblemType: Crash
DistroRelease: Ubuntu 10.04
Package: ubiquity 2.2.20
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: Sun Apr 25 18:51:49 2010
ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
InterpreterPath: /usr/bin/python2.6
LiveMediaBuild: Ubuntu 10.04 "Lucid Lynx" - Release Candidate i386 (20100419.1)
ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity --greeter --only
ProcEnviron: Error: [Errno 13] Permiso denegado: '/proc/2256/environ'
PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', '--greeter', '--only']
SourcePackage: ubiquity
Title: ubiquity crashed with ValueError in command()
UserGroups:

[Jamie Strandboge (jdstrand)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Brian Murray (brian-murray)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 792652, so it 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.