[Bug 1510135] [NEW] Installer crashed when i tried to delete a partition

[Jay Pinkman]

Public bug reported:

i tried to encrypt an existing partition: i selected the partition, pressed 'Change', changed the type to a physical volume for encryption. i wasn't asked for a password, instead the partition type (as displayed in the device/partition table) simply changed to 'crypto'.
then i tried to delete the partition and the installed crashed.

note: i run swapoff before starting the installer.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: ubiquity 2.21.37
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
CasperVersion: 1.365
CurrentDesktop: KDE
Date: Mon Oct 26 14:49:25 2015
InstallCmdLine: file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
LiveMediaBuild: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-bug kubuntu ubiquity-2.21.37 wily

** Attachment added: "syslog"
   https://bugs.launchpad.net/bugs/1510135/+attachment/4505676/+files/syslog

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https://bugs.launchpad.net/bugs/1510135

Title:
  Installer crashed when i tried to delete a partition

Status in ubiquity package in Ubuntu:
  New

Bug description:
  i tried to encrypt an existing partition: i selected the partition, pressed 'Change', changed the type to a physical volume for encryption. i wasn't asked for a password, instead the partition type (as displayed in the device/partition table) simply changed to 'crypto'.
  then i tried to delete the partition and the installed crashed.

  note: i run swapoff before starting the installer.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: ubiquity 2.21.37
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: amd64
  CasperVersion: 1.365
  CurrentDesktop: KDE
  Date: Mon Oct 26 14:49:25 2015
  InstallCmdLine: file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
  LiveMediaBuild: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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