[Bug 997628] Re: migration-assistant unable to unmount target -"/usr/lib/ubiquity/ubiquity/install_misc.py", line 260, in start

[Marcus Tomlinson]

This release of Ubuntu is no longer receiving maintenance updates. If
this is still an issue on a maintained version of Ubuntu please let us
know.

** Changed in: ubiquity (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/997628

Title:
  migration-assistant unable to unmount target
  -"/usr/lib/ubiquity/ubiquity/install_misc.py", line 260, in start

Status in ubiquity package in Ubuntu:
  Incomplete

Bug description:
  While installing Quantal 12.10 on my iMac, overwriting Precise 12.04 on partition sda7, I got migration-assistant telling me that it couldn't unmount sda7. Using a terminal I saw that sda7 was mounted on /target, presumably used by the installer.
  I could have unmounted manually, but I decided to continue installing despite possibly losing existing files on 12.04.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: ubiquity 2.10.16
  ProcVersionSignature: Ubuntu 3.4.0-1.3-generic 3.4.0-rc5
  Uname: Linux 3.4.0-1-generic x86_64
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: amd64
  CasperVersion: 1.316
  Date: Thu May 10 14:14:28 2012
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --
  LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64+mac (20120509)
  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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