[Bug 1579490] Re: Installer cannot install in open LUKS partition

[Simon Quigley]

** Changed in: ubiquity (Ubuntu)
       Status: Confirmed => Won't Fix

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https://bugs.launchpad.net/bugs/1579490

Title:
  Installer cannot install in open LUKS partition

Status in ubiquity package in Ubuntu:
  Won't Fix

Bug description:
  It's not possible to install Xenial into an existing LUKS partition.

  Before starting the graphical installer, I created and opened the LUKS
  partition as /dev/mapper/root.  In the manual "Prepare Partitions"
  screen, /dev/mapper/root is shown as disk instead of partition.  The
  partitioner thus creates ANOTHER partition in my partition, which
  fdisk shows as /dev/mapper/root-part1.

  Once the original installation is complete, I reboot again into the
  graphical installer image.  When I open the LUKS partition as
  /dev/mapper/root, fdisk shows a partition root-part1 inside
  /dev/mapper/root.  But I cannot mount this:

  # mount /dev/mapper/root /mnt
  -> wrong fs type, ...

  # mount /dev/mapper/root-part1 /mnt
  -> does not exist

  # mount /dev/mapper/root/root-part1 /mnt
  -> does not exist

  # mount /dev/mapper/root1 /mnt
  -> does not exist

  Thus, the installation is borked and useless.  The graphical installer
  needs to handle existing LUKS partitions as partitions, not as disks.

  Finally, note that the guided install is NOT an option, as I don't
  want to rely on LVM.

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