I've installed MySQL-server on my ubuntu 21 system, when i try to start MySQL-Server im getting Job for mysql.service failed because the control process exited with error code. See "systemctl status mysql.service" and "journalctl -xeu mysql.service" for details.
it was working fine before I installed docker and run a MySQL on it
systemctl status mysql.service
mysql.service - MySQL Community Server Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset:> Active: failed (Result: exit-code) since Sat 2022-01-22 18:32:17 IST; 7min> Process: 19128 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=> Process: 19136 ExecStart=/usr/sbin/mysqld (code=exited, status=1/FAILURE) Main PID: 19136 (code=exited, status=1/FAILURE) Status: "Server startup in progress" Error: 13 (Permission denied) CPU: 313msJan 22 18:32:17 Lenovo systemd[1]: mysql.service: Scheduled restart job, restar>Jan 22 18:32:17 Lenovo systemd[1]: Stopped MySQL Community Server.Jan 22 18:32:17 Lenovo systemd[1]: mysql.service: Start request repeated too qu>Jan 22 18:32:17 Lenovo systemd[1]: mysql.service: Failed with result 'exit-code>Jan 22 18:32:17 Lenovo systemd[1]: Failed to start MySQL Community Server.
journalctl -xeu mysql.service
░░ Subject: A stop job for unit mysql.service has finished░░ Defined-By: systemd░░ Support: http://www.ubuntu.com/support░░░░ A stop job for unit mysql.service has finished.░░░░ The job identifier is 6908 and the job result is done.Jan 22 18:32:17 Lenovo systemd[1]: mysql.service: Start request repeated too qu>Jan 22 18:32:17 Lenovo systemd[1]: mysql.service: Failed with result 'exit-code>░░ Subject: Unit failed░░ Defined-By: systemd░░ Support: http://www.ubuntu.com/support░░░░ The unit mysql.service has entered the 'failed' state with result 'exit-code>Jan 22 18:32:17 Lenovo systemd[1]: Failed to start MySQL Community Server.░░ Subject: A start job for unit mysql.service has failed░░ Defined-By: systemd░░ Support: http://www.ubuntu.com/support░░░░ A start job for unit mysql.service has finished with a failure.░░░░ The job identifier is 6908 and the job result is failed.