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MySQL Ubuntu 16.04 startet nicht

Ich habe versucht, Mysql unter Linux Ubuntu 16.04 zu öffnen, aber ich habe eine Fehlermeldung erhalten:

[email protected]:~$ mysql -u root -p
Enter password: 
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

Dann habe ich versucht, den MySQL-Server zu starten:

[email protected]:~$ Sudo service mysql start
Job for mysql.service failed because the control process exited with error code. See "systemctl status mysql.service" and "journalctl -xe" for details.
[email protected]:~$ ^C
[email protected]:~$ systemctl status mysql.service
● mysql.service - MySQL Community Server
   Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
   Active: inactive (dead) (Result: exit-code) since Sun 2018-01-21 10:39:04 +04; 17s ago
  Process: 3620 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=1/FAILURE)

Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Control process exited, code=exited status=1
Jan 21 10:39:04 ubuntu systemd[1]: Failed to start MySQL Community Server.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Unit entered failed state.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Failed with result 'exit-code'.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Service hold-off time over, scheduling restart.
Jan 21 10:39:04 ubuntu systemd[1]: Stopped MySQL Community Server.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Start request repeated too quickly.
Jan 21 10:39:04 ubuntu systemd[1]: Failed to start MySQL Community Server.
[email protected]:~$ journalctl -xe
-- 
-- Unit mysql.service has finished shutting down.
Jan 21 10:39:04 ubuntu systemd[1]: Starting MySQL Community Server...
-- Subject: Unit mysql.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mysql.service has begun starting up.
Jan 21 10:39:04 ubuntu mysql-systemd-start[3611]: MySQL system database not found in /var/lib/mysql. Please run mysqld --initialize.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Control process exited, code=exited status=1
Jan 21 10:39:04 ubuntu systemd[1]: Failed to start MySQL Community Server.
-- Subject: Unit mysql.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mysql.service has failed.
-- 
-- The result is failed.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Unit entered failed state.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Failed with result 'exit-code'.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Service hold-off time over, scheduling restart.
Jan 21 10:39:04 ubuntu systemd[1]: Stopped MySQL Community Server.
-- Subject: Unit mysql.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mysql.service has finished shutting down.
Jan 21 10:39:04 ubuntu systemd[1]: Starting MySQL Community Server...
-- Subject: Unit mysql.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mysql.service has begun starting up.
Jan 21 10:39:04 ubuntu mysql-systemd-start[3620]: MySQL system database not found in /var/lib/mysql. Please run mysqld --initialize.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Control process exited, code=exited status=1
Jan 21 10:39:04 ubuntu systemd[1]: Failed to start MySQL Community Server.
-- Subject: Unit mysql.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mysql.service has failed.
-- 
-- The result is failed.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Unit entered failed state.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Failed with result 'exit-code'.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Service hold-off time over, scheduling restart.
Jan 21 10:39:04 ubuntu systemd[1]: Stopped MySQL Community Server.
-- Subject: Unit mysql.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mysql.service has finished shutting down.
Jan 21 10:39:04 ubuntu systemd[1]: mysql.service: Start request repeated too quickly.
Jan 21 10:39:04 ubuntu systemd[1]: Failed to start MySQL Community Server.
-- Subject: Unit mysql.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mysql.service has failed.
-- 
-- The result is failed.

Ich bin Neuling in Linux, bitte helfen Sie mir, das Problem herauszufinden.

2
Ilqar Rasulov

Ich musste mysql entfernen und neu installieren, jetzt funktioniert es

2
Ilqar Rasulov

Die entsprechende Fehlermeldung lautet

MySQL system database not found in /var/lib/mysql. Please run mysqld --initialize.

Versuche zu rennen

Sudo mysqld --initialize

versuchen Sie dann erneut, den Dienst zu starten.

0
Chai T. Rex

Das Problem ist gelöst, wenn Sie mysql entfernen und dann neu installieren.

Führen Sie den folgenden Befehl aus, um mysql vollständig zu entfernen:

$ Sudo apt-get remove --purge --auto-remove mysql-client-* mysql-common mysql-server-*
$ Sudo rm -r /etc/mysql* /var/lib/mysql* /var/log/mysql*

So installieren Sie es erneut:

$ Sudo apt-get install mysql-server
0
user760819