Hello and thanks for your bug report. From the logs it seems that mysql
failed to start because of another "stray" instance of mysql running in
background:
2021-02-03T08:20:14.195877Z 0 [ERROR] [MY-011300] [Server] Plugin mysqlx
reported: 'Setup of socket: '/var/run/mysqld/mysqlx.sock' failed, can't create
lock file /var/run/mysqld/mysqlx.sock.lock'
2021-02-03T08:20:14.196099Z 0 [System] [MY-011323] [Server] X Plugin ready for
connections. Bind-address: '127.0.0.1' port: 33060
2021-02-03T08:20:14.515815Z 0 [Warning] [MY-010068] [Server] CA certificate
ca.pem is self signed.
2021-02-03T08:20:14.516001Z 0 [System] [MY-013602] [Server] Channel mysql_main
configured to support TLS. Encrypted connections are now supported for this
channel.
2021-02-03T08:20:14.517022Z 0 [ERROR] [MY-010262] [Server] Can't start server:
Bind on TCP/IP port: Address already in use
2021-02-03T08:20:14.517161Z 0 [ERROR] [MY-010257] [Server] Do you already have
another mysqld server running on port: 3306 ?
2021-02-03T08:20:14.517454Z 0 [ERROR] [MY-010119] [Server] Aborting
This may happen if mysql is started manually instead of using the init
system helper scripts (systemctl <start|stop> <service>). Could this be
the case? Waiting for your reply I'm setting the status of this bug
report to Incomplete.
** Changed in: mysql-8.0 (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1914370
Title:
package mysql-server-8.0 8.0.23-0ubuntu0.20.04.1 failed to
install/upgrade: installed mysql-server-8.0 package post-installation
script subprocess returned error exit status 1
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