[Bug 1823507] Re: ubiquity crashed with TypeError in enable_download_updates(): Argument 1 does not allow None as a value

[Sebastien Bacher]

Thank you for your bug report, the syslog has
'SQUASHFS error: zlib decompression failed, data probably corrupt'
it looks like a problem with the image/device used, you should verify the md5 of the image and maybe try on a new device

** Changed in: ubiquity (Ubuntu)
   Importance: Undecided => Low

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

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Title:
  ubiquity crashed with TypeError in enable_download_updates(): Argument
  1 does not allow None as a value

Status in ubiquity package in Ubuntu:
  Invalid

Bug description:
  Hello,
  I bought a PC in a store. This was the last PC so I took the one which was in demo, with Windows on it. I tried to install Ubuntu 18.04 with a USB key, but I encountered a problem: "Sorry, Ubuntu 18.04 has experienced an internal error".
  I have this info (among others):

  ExecutablePath:
  /usr/lib/ubiquity/bin/ubiquity

  Package:
  ubiquity 18.04.14.12

  Title:
  ubiquity crashed with TypeError in enable_download_updates(): Argument 1 does not allow None as a value

  ApportVersion:
  2.20.9-ubuntu7.5

  Architecture
  amd64

  CasperVersion
  1.394

  ProcEnviron:
  Error: [Errno 13] Permission denied: '/proc/1601/environ'


  I couldn't find "/var/log/partman" but I found "/var/log/syslog".
  I also added "/var/log/installer/debug", it may help.

  
  1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu
  Description: Ubuntu 18.04.2 LTS
  Release: 18.04

  2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center
  "apt-cache policy pkgname" makes this in the terminal:
  N: Unable to locate package pkgname

  3) What you expected to happen
  Install Ubuntu

  4) What happened instead
  I can use Ubuntu on USB but it doesn't install it on my computer

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