[Bug 942111] Re: ubiquity crashed in ubi-partman.py : ValueError: I/O operation on closed file

[Jean-Baptiste Lallement]

** Changed in: ubiquity (Ubuntu)
       Status: Incomplete => New

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Title:
  ubiquity crashed in ubi-partman.py : ValueError: I/O operation on
  closed file

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  TEST CASE:
  1. Boot to a live session and start Ubiquity
  2. at partitioning step select "something else" (manual partitioning)
  3. Click on the 'Quit' button

  EXPECTED RESULT:
  Quit

  ACTUAL RESULT:
  Feb 27 17:21:50 ubuntu ubiquity[17177]: Exception in GTK frontend (invoking crash handler):
  Feb 27 17:21:50 ubuntu ubiquity[17177]: Traceback (most recent call last):
  Feb 27 17:21:50 ubuntu ubiquity[17177]:   File "/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py", line 1350, in watch_debconf_fd_helper
  Feb 27 17:21:50 ubuntu ubiquity[17177]:     return callback(source, debconf_condition)
  Feb 27 17:21:50 ubuntu ubiquity[17177]:   File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 252, in process_input
  Feb 27 17:21:50 ubuntu ubiquity[17177]:     self.exit_ui_loops()
  Feb 27 17:21:50 ubuntu ubiquity[17177]:   File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 2794, in exit_ui_loops
  Feb 27 17:21:50 ubuntu ubiquity[17177]:     bootloader_seen = self.db.fget('grub-installer/bootdev', 'seen')
  Feb 27 17:21:50 ubuntu ubiquity[17177]:   File "/usr/lib/python2.7/dist-packages/debconf.py", line 60, in <lambda>
  Feb 27 17:21:50 ubuntu ubiquity[17177]:     lambda *args, **kw: self.command(command, *args, **kw))
  Feb 27 17:21:50 ubuntu ubiquity[17177]:   File "/usr/lib/python2.7/dist-packages/debconf.py", line 64, in command
  Feb 27 17:21:50 ubuntu ubiquity[17177]:     self.write.write("%s %s\n" % (command, ' '.join(map(str, params))))
  Feb 27 17:21:50 ubuntu ubiquity[17177]: ValueError: I/O operation on closed file

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: ubiquity 2.9.21
  ProcVersionSignature: Ubuntu 3.2.0-17.27-generic-pae 3.2.6
  Uname: Linux 3.2.0-17-generic-pae i686
  ApportVersion: 1.93-0ubuntu2
  Architecture: i386
  CasperVersion: 1.304
  Date: Mon Feb 27 17:24:00 2012
  InstallCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120226)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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