[Bug 1874522] Re: Crash installing

[Alex Kudentsov]

I'm having the same problem replacing 18.04 with 20.4, in my case it
crashed saying that the disk is currently in use followed by

>Ubiquity: AssertionError: Failed to mount the target: /target

I also have a video of the failed installation flow, I reproduced the
problem several times but not the last few times I tried, maybe there is
some detail in the flow I'm missing. Let me know if any other info is
needed.

** Attachment added: "Screenshot_2020-04-26-16-29-57-986_com.miui.gallery.jpg"
   https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1874522/+attachment/5360830/+files/Screenshot_2020-04-26-16-29-57-986_com.miui.gallery.jpg

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https://bugs.launchpad.net/bugs/1874522

Title:
  Crash installing

Status in ubiquity package in Ubuntu:
  Confirmed

Bug description:
  May be an error in my disk. I cannot enter my session in Ubuntu 18.
  Install Ubuntu 20 has not been possible.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.15
  ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
  Uname: Linux 5.4.0-26-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.445
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Apr 23 21:21:41 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  ProcEnviron:
   LANGUAGE=es_ES.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=es_ES.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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