Comment 5 for bug 539347

Yes, I just re-installed and have "/var/log/syslog" from live environment. Also its /var/installer/debug as well.

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Right at the point of failure I captured "debug" messages:
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Mar 16 09:43:03 debconf (filter): error widget found for apt-setup/cdrom/failed
debconf (developer): <-- METAGET apt-setup/cdrom/failed description
debconf (developer): --> 1 apt configuration problem
debconf (developer): <-- METAGET apt-setup/cdrom/failed extended_description
debconf (developer): --> 1 An attempt to configure apt to install additional packages from the CD failed.
/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py:1292: GtkWarning: Ignoring the separator setting
  dialog.set_has_separator(False)
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Also right at the point of failure I captured "syslog" of live system:
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Mar 16 16:43:03 ubuntu apt-setup: Using CD-ROM mount point /media/apt/
Mar 16 16:43:03 ubuntu apt-setup: Identifying.. [7a40faa32254739bb0058847c0102e5e-2]
Mar 16 16:43:03 ubuntu apt-setup: Scanning disc for index files..
Mar 16 16:43:03 ubuntu apt-setup: Found 0 package indexes, 0 source indexes, 0 translation indexes and 0 signatures
Mar 16 16:43:03 ubuntu apt-setup: W:
Mar 16 16:43:03 ubuntu apt-setup: Failed to mount '/dev/sr0' to '/media/apt/'
Mar 16 16:43:03 ubuntu apt-setup:
Mar 16 16:43:03 ubuntu apt-setup: E:
Mar 16 16:43:03 ubuntu apt-setup: Unable to locate any package files, perhaps this is not a Debian Disc or the wrong architecture?
Mar 16 16:43:03 ubuntu apt-setup:
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The complete files from the live install, for "syslog" and "debug" are attached.