[Bug 1063292] Re: Reinstall of Ubuntu appears to succeed but reports crash in the end

[melchiaros]

In UbiquitySyslog.txt:

Oct  7 15:35:14 ubuntu ubiquity[18324]: Traceback (most recent call last):
Oct  7 15:35:14 ubuntu ubiquity[18324]:   File "/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py", line 1391, in watch_debconf_fd_helper
Oct  7 15:35:14 ubuntu ubiquity[18324]:     return callback(source, debconf_condition)
Oct  7 15:35:14 ubuntu ubiquity[18324]:   File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 252, in process_input
Oct  7 15:35:14 ubuntu ubiquity[18324]:     self.status = self.wait()
Oct  7 15:35:14 ubuntu ubiquity[18324]:   File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 148, in wait
Oct  7 15:35:14 ubuntu ubiquity[18324]:     self.cleanup()
Oct  7 15:35:14 ubuntu ubiquity[18324]:   File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 2867, in cleanup
Oct  7 15:35:14 ubuntu ubiquity[18324]:     self.preseed('grub-installer/bootdev', self.ui.get_grub_choice())
Oct  7 15:35:14 ubuntu ubiquity[18324]:   File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 342, in preseed
Oct  7 15:35:14 ubuntu ubiquity[18324]:     self.db.set(name, value)
Oct  7 15:35:14 ubuntu ubiquity[18324]:   File "/usr/lib/python2.7/dist-packages/debconf.py", line 60, in <lambda>
Oct  7 15:35:14 ubuntu ubiquity[18324]:     lambda *args, **kw: self.command(command, *args, **kw))
Oct  7 15:35:14 ubuntu ubiquity[18324]:   File "/usr/lib/python2.7/dist-packages/debconf.py", line 64, in command
Oct  7 15:35:14 ubuntu ubiquity[18324]:     self.write.write("%s %s\n" % (command, ' '.join(map(str, params))))
Oct  7 15:35:14 ubuntu ubiquity[18324]: ValueError: I/O operation on closed file
Oct  7 15:35:14 ubuntu ubiquity[18324]:

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https://bugs.launchpad.net/bugs/1063292

Title:
  Downgrade from 12.10 to 12.04 appears to succeed but reports crash in
  the end

Status in “ubiquity” package in Ubuntu:
  Confirmed

Bug description:
  Reinstalling Ubuntu 12.04 over 12.10, including;
   - reuse of / mount
   - moving swap space
   - reuse of /home mount

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: ubiquity 2.10.20
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
  Uname: Linux 3.2.0-29-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: amd64
  CasperVersion: 1.315
  Date: Sun Oct  7 16:54:16 2012
  InstallCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/ubuntu.seed boot=casper persistent initrd=/casper/initrd.lz splash -- BOOT_IMAGE=/casper/vmlinuz
  LiveMediaBuild: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  ProcEnviron:
   LANGUAGE=en_GB.UTF-8
   TERM=unknown
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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