package mysql-server-8.0 8.0.28-0ubuntu0.20.04.3 failed to install/upgrade: installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1

[Parth Sachin Narkhede]

dont really know new user

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: mysql-server-8.0 8.0.28-0ubuntu0.20.04.3
ProcVersionSignature: Ubuntu 5.13.0-27.29~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
AptOrdering:
 mysql-server-8.0:amd64: Install
 mysql-server-core-8.0:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: skip
Date: Mon Feb 7 12:13:37 2022
ErrorMessage: installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2021-12-04 (65 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
Logs.var.log.daemon.log:

MySQLConf.etc.mysql.conf.d.mysql.cnf: [mysql]
MySQLConf.etc.mysql.conf.d.mysqldump.cnf:
 [mysqldump]
 quick
 quote-names
 max_allowed_packet = 16M
MySQLConf.etc.mysql.my.cnf: Error: [Errno 40] Too many levels of symbolic links: '/etc/mysql/my.cnf'
ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-5.13.0-27-generic root=UUID=f5a0fc9d-c4ea-4aa1-a5c0-541a507f5988 ro quiet splash vt.handoff=7
Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.6
SourcePackage: mysql-8.0
Title: package mysql-server-8.0 8.0.28-0ubuntu0.20.04.3 failed to install/upgrade: installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Lucas Kanashiro (lucaskanashiro)]

Thank you for taking the time to file a bug report.

From the logs, we can see that a mysql process not managed by the mysql package was running during the upgrade:

Setting up mysql-server-8.0 (8.0.28-0ubuntu0.20.04.3) ...
mysqld will log errors to /var/log/mysql/error.log
mysqld is running as pid 5237
Error: Unable to shut down server with process id 5237

In the mysql logs, we cannot see any reference to the PID 5237. Are you running a mysql process not managed by the debian package? For instance, via a container.

Since there is not enough information in your report to begin triage or to
differentiate between a local configuration problem and a bug in Ubuntu, I
am marking this bug as "Incomplete". We would be grateful if you would:
provide a more complete description of the problem, explain why you
believe this is a bug in Ubuntu rather than a problem specific to your
system, and then change the bug status back to "New".

For local configuration issues, you can find assistance here:
http://www.ubuntu.com/support/community

[Lena Voytek (lvoytek)]

Hello,

Looking at the error message: Error: Unable to shut down server with process id 5237, this is likely a duplicate of LP #1899248. I will add it as a duplicate there for now.

Thanks