[Bug 1389081] [NEW] Manual partitioning shows Debian dialog about formatting partition mounted as root and swap

[Eric Chaskes]

Public bug reported:

Release 14.10; Ubiquity 2.20.0

Using manual partitioning on an Asus X201E (efi), I mounted a pre-
existing partition to be formatted as root. After clicking Install Now,
I got the warning dialog that is typical when installing Debian that
both the / partition and the swap partition would be reformatted and all
data destroyed. Since this is not normal in the Ubuntu installation and
I have several other distros installed, I told it not to use the swap
partition. This was followed by the usual Debian warning about lack of
swap with an offer to return to the partitioner. I continued without
swap.

Installation media was a usb drive that I reformatted before burning the
image. I had previously used the same usb media to install to an Asus
X401 (efi). This installation had proceeded normally for Ubuntu. After
mounting a partition as root, I did not receive a dialog, and swap on
the other distros was fine after installation.

I re-ran both installations in order to make sure it was reproducible.
The same thing happened: a normal Ubuntu experience on the X401, but the
Debian warning dialogs on the X201E. This time I had learned a little
more about how swap is handled during the install, so I clicked Continue
in the warning dialog. The installation was normal other than seeing the
dialog: swap was formatted but had the original UUID restored.

But I'm not sure why the same Ubuntu installation media would produce
the Debian warning dialogs at all and only a particular machine.

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1389081

Title:
  Manual partitioning shows Debian dialog about formatting partition
  mounted as root and swap

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  Release 14.10; Ubiquity 2.20.0

  Using manual partitioning on an Asus X201E (efi), I mounted a pre-
  existing partition to be formatted as root. After clicking Install
  Now, I got the warning dialog that is typical when installing Debian
  that both the / partition and the swap partition would be reformatted
  and all data destroyed. Since this is not normal in the Ubuntu
  installation and I have several other distros installed, I told it not
  to use the swap partition. This was followed by the usual Debian
  warning about lack of swap with an offer to return to the partitioner.
  I continued without swap.

  Installation media was a usb drive that I reformatted before burning
  the image. I had previously used the same usb media to install to an
  Asus X401 (efi). This installation had proceeded normally for Ubuntu.
  After mounting a partition as root, I did not receive a dialog, and
  swap on the other distros was fine after installation.

  I re-ran both installations in order to make sure it was reproducible.
  The same thing happened: a normal Ubuntu experience on the X401, but
  the Debian warning dialogs on the X201E. This time I had learned a
  little more about how swap is handled during the install, so I clicked
  Continue in the warning dialog. The installation was normal other than
  seeing the dialog: swap was formatted but had the original UUID
  restored.

  But I'm not sure why the same Ubuntu installation media would produce
  the Debian warning dialogs at all and only a particular machine.

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