Comment 7 for bug 945027

Same problem, Xubuntu 12.04 install disk :(

Jun 12 01:15:29 xubuntu ubiquity[13667]: Device /dev/sda2 not found in os-prober output
Jun 12 01:15:29 xubuntu ubiquity[13667]: Traceback (most recent call last):
Jun 12 01:15:29 xubuntu ubiquity[13667]: File "/usr/lib/ubiquity/ubiquity/misc.py", line 203, in boot_device
Jun 12 01:15:29 xubuntu ubiquity[13667]: for part in p.partitions():
Jun 12 01:15:29 xubuntu ubiquity[13667]: File "/usr/lib/ubiquity/ubiquity/parted_server.py", line 206, in partitions
Jun 12 01:15:29 xubuntu ubiquity[13667]: self.open_dialog('PARTITIONS')
Jun 12 01:15:29 xubuntu ubiquity[13667]: File "/usr/lib/ubiquity/ubiquity/parted_server.py", line 135, in open_dialog
Jun 12 01:15:29 xubuntu ubiquity[13667]: self.outf = open(outfifo, 'r')
Jun 12 01:15:29 xubuntu ubiquity[13667]: IOError: [Errno 2] No such file or directory: '/var/lib/partman/outfifo'
Jun 12 01:15:29 xubuntu ubiquity[13667]:
Jun 12 01:15:30 xubuntu ubiquity[13667]: Traceback (most recent call last):
Jun 12 01:15:30 xubuntu ubiquity[13667]: File "/usr/lib/ubiquity/ubiquity/misc.py", line 203, in boot_device
Jun 12 01:15:30 xubuntu ubiquity[13667]: for part in p.partitions():
Jun 12 01:15:30 xubuntu ubiquity[13667]: File "/usr/lib/ubiquity/ubiquity/parted_server.py", line 206, in partitions
Jun 12 01:15:30 xubuntu ubiquity[13667]: self.open_dialog('PARTITIONS')
Jun 12 01:15:30 xubuntu ubiquity[13667]: File "/usr/lib/ubiquity/ubiquity/parted_server.py", line 137, in open_dialog
Jun 12 01:15:30 xubuntu ubiquity[13667]: self.error_handler()
Jun 12 01:15:30 xubuntu ubiquity[13667]: File "/usr/lib/ubiquity/ubiquity/parted_server.py", line 126, in error_handler
Jun 12 01:15:30 xubuntu ubiquity[13667]: raise PartedServerError(exception_type, message, options)
Jun 12 01:15:30 xubuntu ubiquity[13667]: PartedServerError: ('', '', [])