Binary package hint: ubiquity
This bug was reported by gandalf-le-vert on IRC; I analysed it and am submitting this bug on his behalf.
If you're running ubiquity in automatic mode but have not preseeded any partitioning questions, then the partitioner fails as follows:
Jan 11 14:51:57 ubuntu ubiquity[8135]: Exception in GTK frontend (invoking crash handler):
Jan 11 14:51:57 ubuntu ubiquity[8135]: Traceback (most recent call last):
Jan 11 14:51:57 ubuntu ubiquity[8135]: File "/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py", line 1122, in watch_debconf_fd_helper
Jan 11 14:51:57 ubuntu ubiquity[8135]: return callback(source, debconf_condition)
Jan 11 14:51:57 ubuntu ubiquity[8135]: File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 179, in process_input
Jan 11 14:51:57 ubuntu ubiquity[8135]: if not self.process_line():
Jan 11 14:51:57 ubuntu ubiquity[8135]: File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 112, in process_line
Jan 11 14:51:57 ubuntu ubiquity[8135]: return self.dbfilter.process_line()
Jan 11 14:51:57 ubuntu ubiquity[8135]: File "/usr/lib/ubiquity/ubiquity/debconffilter.py", line 236, in process_line
Jan 11 14:51:57 ubuntu ubiquity[8135]: if not input_widgets[0].run(priority, question):
Jan 11 14:51:57 ubuntu ubiquity[8135]: File "/usr/lib/ubiquity/ubiquity/components/partman.py", line 360, in run
Jan 11 14:51:57 ubuntu ubiquity[8135]: assert self.extra_choice is not None
Jan 11 14:51:57 ubuntu ubiquity[8135]: AssertionError
This is because partman-auto/init_automatically_partition is asked internally more than once in the process of setting up the partitioner. The second time it's asked, it's marked as seen and so ubiquity --automatic skips it.
Either ubiquity's partman integration needs to work around this by doing something with the seen flag of that particular question (and won't partman-auto/init_automatically_partition be pretty hard to preseed due to the way it's used internally, anyway?), or else we need a general approach to avoiding setting the seen flag on questions that are "asked" but never actually shown to the user. Conceptually, such questions shouldn't have their seen flag set.
Adam,
The following patch will fix the bug using the first approach that Colin mentioned. If you're limited on time, I suggest using that.
I'm looking at how to solve this correctly, but it will require more time for me to figure out how to define whether or not a question is going to be shown to the user without manually specifying the set of questions that will be ahead of time or assuming only questions handled in ok_handler should be marked as seen, which fails for partman.
Thanks for bringing this to our attention.