package postfix 3.4.13-0ubuntu1.2 failed to install/upgrade: new postfix package pre-installation script subprocess returned error exit status 127

[Edward Porter]

Could not upgrade

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: postfix 3.4.13-0ubuntu1.2
ProcVersionSignature: Ubuntu 5.15.0-52.58~20.04.1-generic 5.15.60
Uname: Linux 5.15.0-52-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sun Dec 25 15:29:48 2022
Dependencies:

ErrorMessage: new postfix package pre-installation script subprocess returned error exit status 127
Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: /usr/bin/python3.8, Python 3.8.10, python-is-python3, 3.8.2-4
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3.2
 apt 2.0.9
SourcePackage: postfix
Title: package postfix 3.4.13-0ubuntu1.2 failed to install/upgrade: new postfix package pre-installation script subprocess returned error exit status 127
UpgradeStatus: Upgraded to focal on 2022-12-25 (0 days ago)

[Lucas Kanashiro (lucaskanashiro)]

Thanks for taking the time to report this bug and trying to make Ubuntu better.

This is the installation error:

Preparing to unpack .../04-postfix_3.6.4-1ubuntu1_amd64.deb ...
/etc/postfix/main.cf.proto modified, not updating.
/etc/postfix/master.cf.proto modified, not updating.
grep: /etc/postfix/master.cf: No such file or directory
grep: /etc/postfix/master.cf: No such file or directory
/var/lib/dpkg/tmp.ci/preinst: 175: retry_warning: not found
dpkg: error processing archive /tmp/apt-dpkg-install-fsuCF5/04-postfix_3.6.4-1ubuntu1_amd64.deb (--unpack):
 new postfix package pre-installation script subprocess returned error exit status 127

Could you confirm if you have the file /etc/postfix/master.cf in place? There is nothing much than that we can infer from the logs.

I am setting this bug to Incomplete while we wait for more information, once you add it please set it back to New and we will revisit it.

[Launchpad Janitor (janitor)]

[Expired for postfix (Ubuntu) because there has been no activity for 60 days.]