According to the mysql logs:
2026-06-25T04:10:01.595804Z 0 [ERROR] [MY-010262] [Server] Can't start server:
Bind on TCP/IP port: Address already in use
2026-06-25T04:10:01.595820Z 0 [ERROR] [MY-010257] [Server] Do you already have
another mysqld server running on port: 3306 ?
You seem to have another instance of mysql or something else using up
port 3306/tcp.
Cross checking with dmesg, you seem to have a snap called "mysql-strict"
installed that could be using up that port:
[ 16.250166] audit: type=1326 audit(1782360235.838:385): auid=4294967295
uid=584788 gid=0 ses=4294967295 subj=snap.mysql-strict.mysqld pid=2225
comm="ib_buf_create" exe="/snap/mysql-strict/205/usr/bin/mysqld" sig=0
arch=c000003e syscall=203 compat=0 ip=0x71a25a0ed6f1 code=0x50000
You should stick to either the snap version of mysql, or the deb
packaged version, but not both.
** Changed in: mysql-8.0 (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/2158225
Title:
package mysql-server-8.0 8.0.46-0ubuntu0.24.04.3 failed to
install/upgrade: il sottoprocesso installato pacchetto mysql-
server-8.0 script post-installation ha restituito lo stato di errore 1
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