[Bug 792652] Re: ubiquity crashed with ValueError in command(): I/O operation on closed file

[Jesse Moorman]

I was trying to install 12.04 32 bit on a SanDisk Extreme 16GB SD card
(C10, U1, 45MB/s) in the MMC slot on my Sony Vaio VPCCW27FX notebook
(January 2010 vintage). Ubuntu recognized my hardware, and paused the
installation to advise creation of a Swap partition on the SD card.
Ubuntu then warned that it might take a long time. Knowing that Ubuntu
actually installs rather fast, even on slow HDDs, I thought it would be
no problem, but it took a really long time and I eventually chose
"Quit." I did this first on the initial bootup from the CD, and Ubuntu
then loaded the Live session. So I tried it again with the desktop icon,
and Ubuntu showed the Swap partition taking up the entire 16 GB. When I
tried to move on to the installation (maybe I tried to change the Swap
partition, or to re-write it as 1500 MB), Ubuntu said it needed to write
previous operations to disk, and then it took another very long time.
When I Quit again, I got this error.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubiquity in Ubuntu.
https://bugs.launchpad.net/bugs/792652

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

Status in “ubiquity” package in Ubuntu:
  Fix Released
Status in “ubiquity” source package in Oneiric:
  Won't Fix
Status in “ubiquity” source package in Precise:
  Fix Released

Bug description:
  Binary package hint: ubiquity

  I got this problem when I was trying clicking the Install Ubuntu 11.04
  from the desktop on Asus 1215B red.

  TEST CASE
  1. Boot from a Live media
  2. At Ubiquity Greeter click on 'Try Ubuntu' and start a live session
  3. Start ubiquity
  4. Proceed to step 'Prepare'
  5. Click on 'Continue' then quickly click on 'Quit' on the main dialog then 'Quit' on the confirmation dialog before the UI switches to step 'partman'

  Note:
  Timing seems important and you need to repeat steps 3 to 5 and clicking at slightly different moment until it crashes. It is easier to reproduce on low-end hardware than VM.
  Also I reproduced it more often with other languages than english.

  ACTUAL RESULT
  This crash or UI hang

  ProblemType: Crash
  DistroRelease: Ubuntu 11.04
  Package: ubiquity 2.6.10
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  NonfreeKernelModules: wl
  Architecture: amd64
  Date: Fri Jun  3 21:24:09 2011
  ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
  InterpreterPath: /usr/bin/python2.7
  LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity gtk_ui
  ProcEnviron: Error: [Errno 13] Permission denied: '/proc/3371/environ'
  PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', 'gtk_ui']
  SourcePackage: ubiquity
  Title: ubiquity crashed with ValueError in command(): I/O operation on closed file
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/792652/+subscriptions