[Bug 871890] Re: When entering ubi-partman then going back to the previous page (here ubi-wireless), parted_server crashes

[Marcus Tomlinson]

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Title:
  When entering ubi-partman then going back to the previous page (here
  ubi-wireless), parted_server crashes

Status in ubiquity package in Ubuntu:
  Confirmed

Bug description:
  With current ubiquity trunk, leaving ubi-partman immediately after we
  get the list of partitioning options crashes parted_server with the
  stacktrace below:

  
  Oct 10 16:35:11 ubuntu ubiquity[23811]: Device /dev/sda1 not found in os-prober output
  Oct 10 16:35:11 ubuntu ubiquity[23811]: switched to page partman
  Oct 10 16:35:15 ubuntu ubiquity[23811]: Traceback (most recent call last):
  Oct 10 16:35:15 ubuntu ubiquity[23811]:   File "/usr/lib/ubiquity/ubiquity/misc.py", line 195, in boot_device
  Oct 10 16:35:15 ubuntu ubiquity[23811]:     for part in p.partitions():
  Oct 10 16:35:15 ubuntu ubiquity[23811]:   File "/usr/lib/ubiquity/ubiquity/parted_server.py", line 205, in partitions
  Oct 10 16:35:15 ubuntu ubiquity[23811]:     self.open_dialog('PARTITIONS')
  Oct 10 16:35:15 ubuntu ubiquity[23811]:   File "/usr/lib/ubiquity/ubiquity/parted_server.py", line 133, in open_dialog
  Oct 10 16:35:15 ubuntu ubiquity[23811]:     self.outf = open(outfifo, 'r')
  Oct 10 16:35:15 ubuntu ubiquity[23811]: IOError: [Errno 2] No such file or directory: '/var/lib/partman/outfifo'
  Oct 10 16:35:15 ubuntu ubiquity[23811]: 
  Oct 10 16:35:15 ubuntu ubiquity[23811]: debconffilter_done: ubi-partman (current: ubi-partman)
  Oct 10 16:35:15 ubuntu ubiquity[23811]: switched to page wireless
  Oct 10 16:35:53 ubuntu ubiquity[23811]: Step_before = stepWireless

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