[Bug 1847251] Re: Ubiquity in the 20191008 daily image for 19.10 doesn't present the minimal install option

[Iain Lane]

This is fixed in casper 1.424. casper 1.423 introduced a systemd mount
unit which was intended to facilitate unmounting of /cdrom.

But it was wrong: you cannot use DefaultDepdencies=no to override the
BindsTo= that systemd generates for the corresponding device node (dev-
sr0.device in this case). So if this wasn't available to the live system
- because udev hadn't finished cold plugging by the time systemd got
around to starting the mount unit - the device was *unmounted* instead.

You ended up with an empty directory in /cdrom. The minimal install
option relies on reading a file out of there to decide if it should be
presented. The file didn't exist, and so the minimal option wasn't
shown.

Fixed, as I say. Seb closed a different bug with the upload, but this
one can also be done away with.

It's a revert, so that means that the reliable unmounting that this was
supposed to achieve is not present either.

** Changed in: ubiquity (Ubuntu)
       Status: Triaged => Invalid

** Changed in: casper (Ubuntu)
       Status: Incomplete => Fix Released

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Title:
  Ubiquity in the 20191008 daily image for 19.10 doesn't present the
  minimal install option

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