Can t open and lock privilege tables Table mysql user doesn t exist

Question

I installed MySQL community server 5 7 10 using binary zip  I extracted the zip in c  mysql and created the data folder in c  mysql data  I created the config file as my ini and placed it in c  mysql  root folder of extracted zip   Below is the content of the my ini file    set basedir to your installation path basedir C  mysql   set datadir to the location of your data directory datadir C  mysql data   I m trying to start MySQL using mysqld --console  but the process is aborted with the below error   2015-12-29T18 04 01 141930Z 0  ERROR  Fatal error  Can t open and lock privilege tables  Table  mysql user  doesn t exist 2015-12-29T18 04 01 141930Z 0  ERROR  Aborting    Any help on this will be appreciated

User · Answer

mysqld --initialize to initialize the data directory then mysqld &

If you had already launched mysqld& without mysqld --initialize you might have to delete all files in your data directory

You can also modify /etc/my.cnf to add a custom path to your data directory like this :

[mysqld]
...  
datadir=/path/to/directory

User · Answer

in laragon delete all internal data files from  C  laragon data mysql  and restart it  that worked for me

User · Answer

I had the same problem  For some reason --initialize did not work   After about 5 hours of trial and error with different parameters  configs and commands I found out that the problem was caused by the file system   I wanted to run a database on a large USB HDD drive  Drives larger than 2 TB are GPT partitioned  Here is a bug report with a solution   https   bugs mysql com bug php id 28913  In short words  Add the following line to your my ini   innodb flush method normal   I had this problem with mysql 5 7 on Windows

User · Answer

As suggested above  i had similar issue with mysql-5 7 18  i did this in this way 1  Executed this command from  MYSQL HOME bin mysqld exe --initialize-insecure  2  then started  MYSQL HOME bin mysqld exe  3  Connect workbench to this localhost 3306 with username  root  4  then executed this query  SET PASSWORD FOR  root   localhost     root     password was also updated successfully

User · Answer

You have to initialize the data directory by running the following command  mysqld --initialize  with random root password   mysqld --initialize-insecure  with blank root password

User · Answer

The mysql install db script also needs the datadir parameter  mysql install db --user root --datadir  db datapath  On Maria DB you use the install script mysql install db to install and initialize  In my case I use an environment variable for the data path  Not only does mysqld need to know where the data is  specified via commandline   but so does the install script

[mysql] Can't open and lock privilege tables: Table 'mysql.user' doesn't exist

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