[Bug 1921567] Re: ubi-partman crashed when choosing guided encrypted llvm installation

[Rik Mills]

Also:

Exception caught in process_line:
Traceback (most recent call last):
  File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 143, in process_line
    return self.dbfilter.process_line()
  File "/usr/lib/ubiquity/ubiquity/debconffilter.py", line 285, in process_line
    if not input_widgets[0].run(priority, question):
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 3328, in run
    self.preseed('ubiquity/recovery_key', self.ui.get_recovery_keys())
  File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 346, in preseed
    value = misc.debconf_escape(value)
  File "/usr/lib/ubiquity/ubiquity/misc.py", line 643, in debconf_escape
    escaped = text.replace('\\', '\\\\').replace('\n', '\\n')
AttributeError: 'NoneType' object has no attribute 'replace'

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https://bugs.launchpad.net/bugs/1921567

Title:
  ubi-partman crashed when choosing guided encrypted llvm installation

Status in ubiquity package in Ubuntu:
  Confirmed

Bug description:
  In the Kubuntu installer I choose guided encrypted LVM install and
  after clicking "Install Now" ubi-partman crashes with exit code 141.

  Choosing "Guided - use entire disk" does work without a problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 21.04
  Package: ubiquity 21.04.12
  ProcVersionSignature: Ubuntu 5.11.0-11.12-generic 5.11.0
  Uname: Linux 5.11.0-11-generic x86_64
  ApportVersion: 2.20.11-0ubuntu61
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.461
  CurrentDesktop: KDE
  Date: Sat Mar 27 06:00:59 2021
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/kubuntu.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Kubuntu 21.04 "Hirsute Hippo" - Alpha amd64 (20210326)
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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