package libc6 2.21-0ubuntu2 failed to install/upgrade: subprocess new pre-installation script returned error exit status 128

[Wayne Meecham]

Software Updater hangs during attempted update in 15.04 beta

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: libc6 2.21-0ubuntu2
ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
Uname: Linux 3.19.0-9-generic x86_64
ApportVersion: 2.16.2-0ubuntu3
Architecture: amd64
Date: Tue Mar 24 04:36:52 2015
Dependencies:
 gcc-5-base 5-20150321-1ubuntu1
 libc6 2.21-0ubuntu2
 libgcc1 1:5-20150321-1ubuntu1
 multiarch-support 2.19-15ubuntu2
DuplicateSignature: package:libc6:2.21-0ubuntu2:subprocess new pre-installation script returned error exit status 128
ErrorMessage: subprocess new pre-installation script returned error exit status 128
InstallationDate: Installed on 2015-03-06 (17 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150303)
SourcePackage: glibc
Title: package libc6 2.21-0ubuntu2 failed to install/upgrade: subprocess new pre-installation script returned error exit status 128
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.