** Description changed:
+ [Impact]
+
+ When a user has mariadb-server installed, then swaps to mysql-server,
+ the apt installation crashes, leading to a bad state.
+
+ This should be backported to 25.04 to prevent issues when migrating
+ between databases.
+
+ This issue is fixed by marking mariadb-common as a conflicting package.
+ Without this, the package remains leading to the mysql-server postinst
+ failing.
+
+ [Test Plan]
+
+ The fix can be confirmed by installing mariadb-server then installing
+ mysql-server and making sure the command succeeds:
+
+ # apt update
+ # apt upgrade
+ # apt install mariadb-server
+ # apt install mysql-server
+
+ [Where problems could occur]
+
+ If problems were to occur, they would likely show up during apt install
+ and apt upgrade while mysql is installed alongside mariadb having been
+ installed in the past.
+
+ [Other Info]
+
+ The crash does not happen with mysql-8.0 in Ubuntu, so this issue affects
plucky specifically.
+
+ [Original Description]
+
When attempting to install mysql-server while mariadb-server is
currently installed, most mariadb packages will be removed automatically
except mariadb-common, causing a crash in the postinst. If mariadb-
common is removed manually beforehand, then the installation completes
successfully. This is also an issue for mysql-8.0 on debian sid, but not
oracular or earlier.
ProblemType: Package
DistroRelease: Ubuntu 25.04
Package: mysql-server 8.4.5-0ubuntu0.1
ProcVersionSignature: Ubuntu 6.14.0-15.15-generic 6.14.0
Uname: Linux 6.14.0-15-generic x86_64
ApportVersion: 2.32.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: unknown
CloudArchitecture: x86_64
CloudBuildName: server
CloudID: multipass
CloudName: multipass
CloudPlatform: nocloud
CloudSerial: 20250424
CloudSubPlatform: config-disk (/dev/vdb)
Date: Tue May 27 20:24:37 2025
ErrorMessage: installed mysql-server package post-installation script
subprocess returned error exit status 1
Logs.var.log.daemon.log:
-
+
Logs.var.log.mysql.error.log:
-
+
MySQLConf.etc.mysql.conf.d.mysql.cnf: [mysql]
MySQLConf.etc.mysql.conf.d.mysqldump.cnf:
[mysqldump]
quick
quote-names
- max_allowed_packet = 16M
+ max_allowed_packet = 16M
MySQLConf.etc.mysql.my.cnf: my.cnf links to /etc/mysql/mariadb.cnf
MySQLVarLibDirListing: ['ib_buffer_pool', 'mysql.ibd', 'ibdata1', 'auto.cnf',
'undo_002', 'public_key.pem', 'mysql', 'ca.pem', '#ib_16384_0.dblwr',
'server-key.pem', '#innodb_temp', 'server-cert.pem', '#ib_16384_1.dblwr',
'client-key.pem', 'undo_001', 'mysql_upgrade_history', '#innodb_redo',
'performance_schema', 'client-cert.pem', 'ca-key.pem', 'private_key.pem']
ProcCmdline: BOOT_IMAGE=/vmlinuz-6.14.0-15-generic root=LABEL=cloudimg-rootfs
ro console=tty1 console=ttyS0
Python3Details: /usr/bin/python3.13, Python 3.13.3, python3-minimal, 3.13.3-1
PythonDetails: N/A
RelatedPackageVersions:
dpkg 1.22.18ubuntu2
- apt 3.0.0
+ apt 3.0.0
SourcePackage: mysql-8.4
Title: package mysql-server 8.4.5-0ubuntu0.1 failed to install/upgrade:
installed mysql-server package post-installation script subprocess returned
error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
** Changed in: mysql-8.4 (Ubuntu Plucky)
Status: Confirmed => In Progress
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https://bugs.launchpad.net/bugs/2111855
Title:
mysql-server 8.4 install crashes when mariadb-common is still
installed
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