[Bug 1950411] Re: package libc6 2.27-3ubuntu1.4 failed to install/upgrade: new libc6:amd64 package pre-installation script subprocess returned error exit status 30

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** Tags removed: need-duplicate-check

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Title:
  package libc6 2.27-3ubuntu1.4 failed to install/upgrade: new
  libc6:amd64 package pre-installation script subprocess returned error
  exit status 30

Status in glibc package in Ubuntu:
  New

Bug description:
  Attempted a do-release-upgrade from 18.04 to 20.04 on Windows 10.

  First attempt failed due to snap being installed. So, I removed and
  purged snapd.

  The second attempt got pretty far along before it also failed. It
  looks like it found a file named /var/crash/libc6.0.crash existing on
  my file system and didn't know what to do.

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: libc6 2.27-3ubuntu1.4
  ProcVersionSignature: Microsoft 4.4.0-19041.1237-Microsoft 4.4.35
  Uname: Linux 4.4.0-19041-Microsoft x86_64
  ApportVersion: 2.20.9-0ubuntu7.27
  Architecture: amd64
  Date: Tue Nov  9 18:43:14 2021
  Dependencies:
   gcc-8-base 8.4.0-1ubuntu1~18.04
   libc6 2.27-3ubuntu1.4
   libgcc1 1:8.4.0-1ubuntu1~18.04
  Dmesg:
   [    0.009267]  Microsoft 4.4.0-19041.1237-Microsoft 4.4.35
   [    0.072759] <3>init: (1) ERROR: ConfigInitializeCommon:665: Failed to mount /usr/lib/wsl/driver
   [    0.072763] : 19
   [    0.072833] <3>init: (1) ERROR: ConfigInitializeCommon:665: Failed to mount /usr/lib/wsl/lib:
   [    0.072836] 19
  ErrorMessage: new libc6:amd64 package pre-installation script subprocess returned error exit status 30
  Python3Details: /usr/bin/python3.6, Python 3.6.9, python3-minimal, 3.6.7-1~18.04
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu2.3
   apt  1.6.14
  SourcePackage: glibc
  Title: package libc6 2.27-3ubuntu1.4 failed to install/upgrade: new libc6:amd64 package pre-installation script subprocess returned error exit status 30
  UpgradeStatus: Upgraded to bionic on 2021-11-10 (0 days ago)

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