[Bug 1155216] Re: Unable to umount isodevice

[Shriramana Sharma]

I tried installing Kubuntu Raring Beta 2 and Raring final using ISO
loopback, but it gave this error saying "/isodevice could not
unmounted", and while it lets me select the timezone, keyboard layout
etc, the installation doesn't really seem to progress because the
progress bar reads "Detecting filesystems" for a long time. I suppose if
installation is progressing it should say "unpacking this/that" etc.

I am now going to try installing using my USB drive -- too bad I
couldn't use the HD-install method which I have been using for three
years now.

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Title:
  Unable to umount isodevice

Status in “ubiquity” package in Ubuntu:
  Confirmed

Bug description:
  When installing from an iso file, with grub's loopback option,
  Ubiquity displays a message stating the isodevice cannot be unmounted,
  even when the isofile is not located on the same harddrive as the
  installation target.

  sudo umount -l -r -f /isodevice

  solves this problem, so Ubiquity should be able to issue this command
  by itself, without any user action.

  Arbiel

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