[Bug 1759388] Re: Unable to install to a luks device that is itself partitioned

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

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

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https://bugs.launchpad.net/bugs/1759388

Title:
  Unable to install to a luks device that is itself partitioned

Status in ubiquity package in Ubuntu:
  Confirmed

Bug description:
  install.py crashed with AssertionError in __init__(): Failed to mount
  the target: /target

  During installation.  
  1. Create a efi system partition
  2. Create a /boot partition
  3. Create a luks encrypted partition
  4. Delete the auto-created filesystem added to the luks /dev/mapper device.
  5. Create a partition table on the luks-encrypted /dev/mapper device.
  6. Add a partition for / on the luks device.
  7. Add a partition for /mnt/otheros on the luks device
  8. Add a partition for /home on the luks device
  9. Continue normally.
  10. Installer crashed dialog.

  I was attempting to create a 3-partition setup under a single luks
  device so that password entry would only need to happen once.  This
  should theoretically be possible, but it crashed the installer.

  ProblemType: Crash
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CasperVersion: 1.391
  Date: Tue Mar 27 20:58:58 2018
  ExecutablePath: /usr/share/ubiquity/install.py
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
  InterpreterPath: /usr/bin/python3.6
  LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180327)
  ProcCmdline: /usr/bin/python3 /usr/share/ubiquity/install.py
  Python3Details: /usr/bin/python3.6, Python 3.6.5rc1, python3-minimal, 3.6.4-1
  PythonArgs: ['/usr/share/ubiquity/install.py']
  PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-4
  SourcePackage: ubiquity
  Title: install.py crashed with AssertionError in __init__(): Failed to mount the target: /target
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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