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

[john kuras]

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)