Public bug reported:
Decided to start my upgrade to 22.04 two days early (2022-04-19) from a
fully patched 21.10 on AMD A6-5400K APU with Radeon HD Graphics.
I did do-release-upgrade -d and it failed to finish installing dpkg.
This prevented a number of dependent packages from being installed.
Here's the main error, which happens repeatedly with a manual "apt
install dpkg":
Preparing to unpack .../dpkg_1.21.1ubuntu2_amd64.deb ...
Unpacking dpkg (1.21.1ubuntu2) over (1.20.9ubuntu2) ...
Setting up dpkg (1.21.1ubuntu2) ...
Installing new version of config file /etc/cron.daily/dpkg ...
head: error reading 'info.bak': Is a directory
dpkg: error processing package dpkg (--configure):
installed dpkg package post-installation script subprocess returned error exit
status 1
Errors were encountered while processing:
dpkg
ProblemType: Package
DistroRelease: Ubuntu 21.10
Package: dpkg 1.21.1ubuntu2
ProcVersionSignature: Ubuntu 5.13.0-39.44-generic 5.13.19
Uname: Linux 5.13.0-39-generic x86_64
ApportVersion: 2.20.11-0ubuntu71.1
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Tue Apr 19 00:47:14 2022
DuplicateSignature:
package:dpkg:1.21.1ubuntu2
Installing new version of config file /etc/cron.daily/dpkg ...
head: error reading 'info.bak': Is a directory
dpkg: error processing package dpkg (--configure):
installed dpkg package post-installation script subprocess returned error
exit status 1
ErrorMessage: installed dpkg package post-installation script subprocess
returned error exit status 1
InstallationDate: Installed on 2018-01-07 (1562 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
Python3Details: /usr/bin/python3.10, Python 3.10.4, python3-minimal,
3.10.4-0ubuntu2
PythonDetails: /usr/bin/python3.10, Python 3.10.4, python-is-python3, 3.9.2-1
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
dpkg 1.21.1ubuntu2
apt 2.3.9
SourcePackage: dpkg
Title: package dpkg 1.21.1ubuntu2 failed to install/upgrade: installed dpkg
package post-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to impish on 2022-04-19 (0 days ago)
** Affects: dpkg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-package impish need-duplicate-check third-party-packages
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https://bugs.launchpad.net/bugs/1969421
Title:
21.10 to 22.04 upgrade- package dpkg 1.21.1ubuntu2 failed to
install/upgrade
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