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Several problems with mysql since last Sierra Update.
Reinstalled several times with brew or mysql dmg and followd many many "solutions" on SO.
Finally it worked but after a Mac Crash, I face the same problem.
MySql won't start from preference panel
Mysql won't start from terminal: Can't connect through /tmp/mysql.sock...of course, mysqld is not running
trying to start mysqld:
sudo /usr/local/mysql/support-files/mysql.server start
ERROR! The server quit without updating PID file (/usr/local/mysql/data/My-iMac.local.pid)
sudo /usr/local/mysql/bin/mysqld several errors and shutdown
a bit stuck
Just tried this
sudo /usr/local/mysql/bin/mysqld_safe
mysqld_safe Logging to '/usr/local/mysql/data/My-iMac.local.err'.
Starting mysqld daemon with databases from /usr/local/mysql/data
mysqld_safe mysqld from pid file /usr/local/mysql/data/My-iMac.local.pid ended
And now looking at error log, the explanation is clear:
tail /usr/local/mysql/data/My-iMac.local.err
InnoDB: corrupt if we cannot apply the log records in the InnoDB log to it.
So I added in my.cnf
[mysqld]
innodb_force_recovery = 1
and now it starts!
It was probably due to previous Mac Crash
In my case the owner of the data folder was changed after an OS update.
After fixing this with …
sudo chown -R mysql /usr/local/mysql/data
… everything worked like a charm again.
Oh, I feel your pain. I've had this happen many times. Stopping the processes didn't always work. To solve this I simply went into System Preferences and MySQL... stop the process from there and try to restart.
Last night, my MySQL server went down unexpectedly. On attempting to restart (with service mysql restart - I'm root) it merely hangs. With the mysql -u root -p command, I get:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2).
I then tried to start the daemon manually (mysqld). The prompt would hang for about 2 seconds, and then return. On closer inspection of the error logs, I got:
2016-01-22T19:18:32.399584Z 0 [ERROR] Could not create unix socket lock file /var/run/mysqld/mysqld.sock.lock.
2016-01-22T19:18:32.399622Z 0 [ERROR] Unable to setup unix socket lock file.
2016-01-22T19:18:32.399646Z 0 [ERROR] Aborting
I then tried chown mysql /var/run/mysqld, chmod -R 775 /var/run/mysqld and apt-get install mysql-community-server --reinstall. No luck.
I have looked around, and couldn't find a solution. Any help here?
Note: I am Running Debian 8 (Jessie) with MySQL community Server 5.7.10
I just ran into this. The mysql install was a little weird and was missing
/var/run/mysqld/
MySQLd was attempting to create the socket and lock file but the parent directory was missing. I simply created the directory
sudo mkdir /var/run/mysqld
chowned it to mysql
sudo chown mysql:mysql /var/run/mysqld
I was then able to start mysqld normally.
I experienced the same issue today on my Ubuntu server. But I think the solution is NOT to disable locking. In my case, a look at the system log (dmesg | tail and journalctl -xe) revealed that it's an apparmor issue and the solution can be found in this question.
I had following error
[ERROR] Unix socket lock file is empty /var/lib/mysql/mysql.sock.lock.
This error came up as a result that my server was lacking space 100% use (see below)
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/xvda1 41153856 28531384 12187364 100% /
Make sure the folder exists with the proper permissions
chown mysql:mysql /var/lib/mysql/
And make sure to delete the file so the mysql server could generate a new one
rm /var/lib/mysql/mysql.sock.lock
Posting this answer, in case it helps someone with the same config as me. I had similar issue with this configuration:
Host OS: Ubuntu 20.04, MySql server: 8.0
The following error was seen in /var/log/mysql/error.log during run of systemctl start mysql
[ERROR] [MY-010273] [Server] Could not create unix socket lock file /var/run/mysqld/mysqld.sock.lock.
Fix was similar:
mkdir -p /var/run/mysqld/
chmod 777 /var/run/mysqld/
And of course, I had enough space wherever mysql server was being installed.
Below commands worked for me.
sudo mkdir /var/run/mysqld
sudo chmod 777 /var/run/mysqld -R
Also may be out of disk space.
For those running docker. If you're already running mysql in docker, you will also get such an error. Removing the mysql container solved the problem for me.
It's best to look at the log files (/usr/local/var/mysql/*.local.err) before attempting any of the more generic answers.
In my case first it complained of not being able to open the socket file ([Server] Could not open unix socket lock file /tmp/mysql.sock.lock.) and once I changed permissions, it complained of not being able to remove it! ([Server] Could not remove unix socket lock file /tmp/mysql.sock.lock errno 13.)
Removed it and run mysql.server start and DONE.
Rename /var/lib/mysql/mysql.sock.lock & /var/lib/mysql/mysql.sock to /var/lib/mysql/mysql.sock.lock.bck & /var/lib/mysql/mysql.sock.bck respectively and start mysqld. It works
If you are using docker to run MySQL, please check if there is enough allocated disk space in docker preferences.
Fixed. Add skip-external-locking to my.cnf under the [mysqld] section, and then reboot the entire system. This should fix it, for anyone who finds this. Also if you backed up your data, then attempted to restore and were told to rm ib* to make it work, you need the ibdata file.
I know there are tons of posts about this problem but, I have tried all the solutions I have seen, and none are working. I have been working on this for two days now...it seems like I should be able to get a simple install working. Here are the facts:
I downloaded mysql-5.6.15-osx10.7-x86_64.dmg from the MySQL site. I opened and ran the mysql-5.6.15-osx10.7-x86_64.pkg. Then I went to the command line and tried a long list of commands to start MySQL and NOTHING works.
Here is a list of some of my attempts and their results:
~ $ mysql
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (2)
~ $ mysqld
2014-01-13 19:52:20 0 [Warning] Using unique option prefix key_buffer instead of key_buffer_size is deprecated and will be removed in a future release. Please use the full name instead.
2014-01-13 19:52:20 0 [Warning] Using unique option prefix thread_cache instead of thread_cache_size is deprecated and will be removed in a future release. Please use the full name instead.
2014-01-13 19:52:20 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2014-01-13 19:52:20 953 [Warning] Can't create test file /usr/local/mysql-5.6.15-osx10.7-x86_64/data/rogerknwlessmbp.lower-test
2014-01-13 19:52:20 953 [Warning] Can't create test file /usr/local/mysql-5.6.15-osx10.7-x86_64/data/rogerknwlessmbp.lower-test
mysqld: File './mysql-bin.index' not found (Errcode: 13 - Permission denied)
2014-01-13 19:52:20 953 [ERROR] Aborting
~ $ sudo mysqld
After several warnings about deprecated settings, I got:
2014-01-13 20:27:55 1311 [ERROR] Fatal error: Please read "Security" section of the manual to find out how to run mysqld as root!
2014-01-13 20:27:55 1311 [ERROR] Aborting
2014-01-13 20:27:55 1311 [Note] Binlog end
~ $ sudo /usr/local/mysql/bin/mysqld_safe
140113 20:30:08 mysqld_safe Logging to '/usr/local/mysql/data/rogerknwlessmbp.err'.
140113 20:30:09 mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql/data
140113 20:30:11 mysqld_safe mysqld from pid file /usr/local/mysql/data/rogerknwlessmbp.pid ended
~ $ sudo /usr/local/mysql/support-files/mysql.server start
Starting MySQL
... ERROR! The server quit without updating PID file (/usr/local/mysql/data/rogerknwlessmbp.pid).
I read one post that said this was a permissions issue, and that the solution was to rebuild permissions using the Disk Utility app in Mac OS X. I have done that with no effect.
Over the past few days, I have tried so many things, I can't keep track but, they all get about the same results. I have tried installing earlier versions, different versions (x86), and on and on. If anyone has a recommendation as to what else I might try I would really appreciate it. I would love to get MySQL working on this machine. It was on my machine and working at one point but, I uninstalled it because of some problems I was having long ago. Now, I can't get it to work.
Thanks for any advice you can give.
I believe socket should link to /var/lib/mysql/mysql.sock
You can edit a file that is usually in /etc/mysql/ folder and fine a line starting with socket=
Try putting /var/lib/mysql/mysql.sock as a value for this.
I believe you can see a location for mysql.sock by running this command
$ mysqladmin variables | grep socket
If it's /tmp/mysql.sock
you can try sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock too
Finally! I got it to install and to start.
Essentially, the turning point was viewing the installation logs and working through the errors that were reported there. I had not completely removed all the old files, and one of them was causing an error.
If you are installing onto mac using the .dmg file, you can hit Ctrl+L to view the log file, and identify, specifically, what the problems are.
The MySQL portion of this guide worked for me:
Download the “x86, 64bit” DMG version of MySQL 5.6.x for OS X 10.7
from mysql.com and install the pkg, the startup item and the pref
pane.
Open the pref pane and start the MySQL Server.
Update the path by editing ~/.bash_profile and add:
export PATH=~/bin:/usr/local/bin:/usr/local/mysql/bin:$PATH
at top of file.
Set up MySQL root password:
mysqladmin -u root password {new-password}
mysqladmin -u root> -p{new-password} -h localhost password {new-password}
mysqladmin -u root -p{new-password} reload
Clear the history file by typing history -c so that {new-password}
isn’t in plain text on the disk.
Now ensure that the mysql.sock file can be found by PHP: Ensure that
MySQL is running
sudo mkdir /var/mysql sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock
This answer on StackOverflow explains it pretty well: https://stackoverflow.com/a/15472270/1067124.
Backup your your /usr/local/mysql/data/ folder first
Delete old installation (this will also remove your data!):
sudo rm /usr/local/mysql
sudo rm -rf /usr/local/mysql*
sudo rm -rf /Library/StartupItems/MySQLCOM
sudo rm -rf /Library/PreferencePanes/My*
sudo rm -rf ~/Library/PreferencePanes/My*
sudo rm -rf /Library/Receipts/mysql*
sudo rm -rf /Library/Receipts/MySQL*
sudo rm -rf /var/db/receipts/com.mysql.*
Install MySQL from http://dev.mysql.com/downloads/mysql/5.1.html
Restore /usr/local/mysql/data/
OS Yosemite and Maverick has been having these issues to DYLD_LIBRAARY PATH
Found here
Please Use this link to view the answer already on stack overflow.
I see someone has given an answer that works in the original poster's case, but as this is such a common problem I thought I'd post the solution I found to the same problem in my own case.
I thought I knew what I was doing as I had successfully installed MySQL (mysql-5.6.15-osx10.7-x86_64.dmg) on two machines running Mavericks following the procedures at https://discussions.apple.com/docs/DOC-3082, which also allow you to install Perl drivers. However when I tried on a laptop that had previously been running Snow Leopard (sic) I hit the dreaded error message, and although a mysql directory had been generated at /var/mysql/ no socket was generated there or anywhere else.
The problem must have been caused by the previous version of MySQL I had installed, as the solution was to do a complete uninstall (http://johnmcostaiii.net/2011/removing-mysql-osx-lion/) and then reinstall. So if you have a early version of MySQL installed and you hit this problem, this might be the solution. It worked for me.
Ok, I've searched all over and have spent quite a bit of my time installing, uninstalling, trying various option but without success.
I'm on Mac OS X Lion (10.7.3) and am trying to setup a Python, MySQL.
I successfully installed Python and MySQL via HomeBrew.
Python works great.
After MySQL Installation, I followed the first 2 steps - unset and the mysql_install_db commands.
Now, when I try to start mysql "mysql.server start", I get the following error
ERROR! The server quit without updating PID file (/usr/local/var/mysql/Brajeshwar.local.pid).
Brajeshwar is my username on my machine.
I found that it was a permissions issue with the mysql folder.
chmod -R 777 /usr/local/var/mysql/
solved it for me.
EDIT 2012/09/18:
As pointed out by Kane, make sure the mysql database is properly set up before doing anything else. See “PID error on mysql.server start?” for more info.
Original answer kept for history's sake:
It most likely is a permissions issue. Check /usr/local/var/mysql/*.err. Mine said:
120314 16:30:14 InnoDB: Operating system error number 13 in a file operation.
InnoDB: The error means mysqld does not have the access rights to
InnoDB: the directory.
InnoDB: File name ./ibdata1
InnoDB: File operation call: 'open'.
InnoDB: Cannot continue operation.
120314 16:30:14 mysqld_safe mysqld from pid file /usr/local/var/mysql/janmoesen.local.pid ended
I also had to do this:
sudo chown _mysql /usr/local/var/mysql/*
I ended up with completely reinstalling of mysql, and it finally worked out.
WARNING This will remove all of your databases, so make sure to save dumps first.
brew remove mysql
brew cleanup
launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
rm ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
sudo rm -rf /usr/local/var/mysql
brew install mysql
mysqld --initialize --explicit_defaults_for_timestamp
mysql.server start # no sudo!
I had this issue on mac 10.10.5 Yosemite
What I did to solve this
cd /usr/local/var/mysql
sudo rm *.err && sudo rm *.pid
sudo reboot
sudo mysql.server start
I had the same issue on OS X El Capitan, here's the terminal command sequence that fixed it for me.
Delete error files (you'll have to change the path depending on your setup)
sudo rm /usr/local/mysql/data/*.err
Find the info for the mysql process that's still running and kill it:
ps -A | grep -m1 mysql | awk '{print $1}' | sudo xargs kill -9
Now restart MySQL:
/usr/local/mysql/support-files/mysql.server start
November, 2014: If you're getting this error on MySQL 5.6.x on Mac OS X Mavericks or Yosemite and want to use MySQL with PHP locally (/tmp/mysql.sock is where PHP PDO expects to find the sock file), here is what fixed it for me:
1) Uncomment the default homebrew config file lines and edit as below
$ sudo vi /usr/local/Cellar/mysql/5.6.21/my.cnf
...
basedir = /usr/local/Cellar/mysql/5.6.21
datadir = /usr/local/var/mysql
port = 3306
server_id = <UNIQUE_NUMBER_HERE_OR_LEAVE_COMMENTED_OUT>
socket = /tmp/mysql.sock
pid-file = /usr/local/var/mysql/[BOXNAME].local.pid
....
BOXNAME is what you have in your System Prefs -> Network as the unique id for your computer on the network.
2) Set permissions on all the files in the mysql datadir. These were all owned by [my_username]. MySQL is very picky about this and refuses to create the pid file unless it (the user _mysql) owns the directory.
$ sudo chown -R _mysql:mysql /usr/local/var/mysql
3) Start MySQL using the bash helper/wrapper script:
$ sudo mysql.server start
Starting MySQL
. SUCCESS!
Hope that helps. If the above doesn't work for you, try to run the mysqld_safe binary manually in the Cellar/mysql/VERSION_/bin/ directory and check what the settings are (if it runs)
sudo /usr/local/Cellar/mysql/5.6.12/bin/mysqld_safe &
If that runs, you can
ps aux | grep mysql
and see something like
[username] 6881 0.0 2.7 3081392 454836 ?? S 8:52AM 0:00.54 /usr/local/Cellar/mysql/5.6.21/bin/mysqld --basedir=/usr/local/Cellar/mysql/5.6.21 --datadir=/usr/local/var/mysql --plugin-dir=/usr/local/Cellar/mysql/5.6.21/lib/plugin --verbose --log-error=/usr/local/var/mysql/BOXNAME.local.err --pid-file=/usr/local/var/mysql/BOXNAME.local.pid
I'm not sure why that worked for me but it shows you where I got the my.cnf config file options from. You can also use the command line options to try to troubleshoot when starting mysqld manually.
If you do run manage to run MySQL server using mysqld_safe, you may have to do this to shut it down before trying the mysql.server bash helper. Resist the urge to kill -9 [PID] because you can corrupt your data.
mysqladmin -uroot shutdown
Good luck!
This worked for me:
sudo chmod -R 777 /usr/local/var/mysql/
sudo /usr/local/mysql/support-files/mysql.server start
This worked for me on 10.12.2 :
$ rm /usr/local/var/mysql/*.err
then
$ brew services restart mysql
If I remember correctly it is a permissions issue. Try to 'touch' and 'chmod' the pid file or the folder the file is held in.
My issue was that I started server as sudo once and then tried to restart as a local user.
Here mysql was not able to write to '.err' file owned by root.
I had to remove that file and restart the server:
sudo rm /usr/local/var/mysql/*.err
mysql.server start
Try this (OSX)
Step 1:
ps -aux | grep mysql
Then kill the 4 digits PID number
Step 2: kill 1965
Step 3: mysql.server start
Or having hard time to locate those PID numbers, try this below
Step 1 again: ps -aux | grep mysql
Step 2 again: killall
Step 3 again: mysql.server start
I’ve got a similar problem with MySQL on a Mac (Mac Os X Could not startup MySQL Server. Reason: 255 and also “ERROR! The server quit without updating PID file”). After a long trial and error process, finally in order to restore the file permissions, I’ve just do that:
launch the Disk Utilities.app
choose my drive on the left panel
click on the “Repair disk permissions” button
This did the trick for me. Hoping this can help someone else.
Find usr/local/var/mysql/your_computer_name.local.err file and understand the more information about error
Location : /usr/local/var/mysql/your_computer_name.local.err
It's probably problem with permissions
Find if mysql is running and kill it
ps -ef | grep mysql
kill -9 PID
where PID is second column value
2. check ownership of mysql
ls -laF /usr/local/var/mysql/
if it is owned by root, change it mysql or your user name
sudo chown -R mysql /usr/local/var/mysql/
For me it worked with:
unset TMPDIR
mysql_install_db --user=`whoami` --basedir="$(brew --prefix mariadb)" --datadir=/usr/local/var/mysql --tmpdir=/tmp
What worked for me was:
Go to your mysql installation directory
sudo chmod -R 777 data
Then go back one directory
cd support-files/
sudo ./mysql.server start
After that the server started running.
But the problem with this method is that I have to repeat this every time I want to start the mysql now. Don't know why it started behaving like this suddenly.
I had this problem on Linux, but the cause is relevant to any mysql installation. In my case, the server was crashing before startup was complete and the pid file updated. The error messages were seen when starting up mysqld directly instead of via "service mysql start".
In my case, the cause was the partition where the log files were located being full. Removing log files permitted mysql to start again. To test for this issue, go to the location of your mysql activity logs, and do df ..
If you have upgraded your mysql installation to 8.x, check if your previous version is supported for upgradation.
If not, mysql will not work! Uninstall your mysql along with all configuration files in /usr/local/var/mysql (remove the whole folder). Reinstall mysql.
NOTE: reinstalling might lead to loss of data.
Please check the log , you will get more detailed information .
Use the below command to tail the error log
tail -100 /usr/local/var/mysql/<user_name>.local.err
For me , one of the directory is missing , once created the server has started .
The key takeaway is to check the .err file, by default on Mac OSX it's in /usr/local/var/mysql.
That log filed revealed to me that I had to delete the following files:
ibdata1
ib_logfile0
ib_logfile1
Running MySQL with mysql.start worked successfully after that. Note that deleting those files will likely causes data loss.
sudo chmod -R 777 /usr/local/var/mysql/
works for me.
I had the same issue:
But the situation was, every time i try to enter:
/usr/local/mysql/support-files/mysql.server start
a file named localhost.pid is created instead of iMax0.local.pid which was stated in the error:
ERROR! The server quit without updating PID file (/usr/local/mysql/data/iMax0.local.pid).
Solution that works for me was copying localhost.pid and renaming it to iMax0.local.pid.
My solution on OSX El Capitan was:
sudo chmod ugo+w /tmp
It was broken suddenly.
The error was:
ERROR! The server quit without updating PID file
and the log showed:
Can't start server : Bind on unix socket: Permission denied
It might also be helpful to note, that under OSX there is no my.cnf file by default and not needed by default, which I did not know. Good luck!
$ sudo mysql.server restart
It works for me.
I had the similar issue. But the following commands saved me.
cd /usr/local/Cellar
sudo chown _mysql mysql
This is file permission problem.
Check disk permissions and repair.
Osx => Cmd+Space => Disk Utilty => Verify Disk Permissions.
Verify completed after Repair Disk Permissions.
mysql.server start command is worked succesfuly.
None of the answers worked for me. However, I simply did sudo mysql.server start and it worked nicely.
Also, for me, it did NOT show permissions issue in *.err file.
all solutions above doesn't work for me.
but they give me some clues to fix this error.
mysql.server start ----error The server quit without updating PID file
I installed mysql#5.7 on my macbook mojave with homebrew
brew install mysql#5.7
mysql error log located in /usr/local/var/mysql/IU.lan.err,there is one line in it:
Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
after trying many posts in goole search engine,I turned to baidu
https://blog.csdn.net/xhool/article/details/52398042
inspired by this post,I found the solution:
rm /usr/local/var/mysql/*
mysqld --initialize
a random password for root user will be shown in bash.
but the command mysql -uroot -p[theRandomPassword] cant work.so I have to reset password.
create a init file with contents like this
SET PASSWORD FOR 'root'#'localhost' = PASSWORD('MyNewPass');
place it in any directory easy to find,such as Desktop
mysqld --init-file=[YourInitFile] &
many logs printed on your screen.
mysql -uroot -pMyNewPass
enjoy your high-version mysql!
Happened to me because I was actually switching from MariaDB to Mysql.
Switching back to MariaDB solved this.
I'm guessing the existing database wasn't compatible.
Solved this using sudo chown -R _mysql:_mysql /usr/local/var/mysql
Thanks to Matteo Alessani
This error may be actually being show because mysql is already started. Try to see the current status by:
mysql.server status
I am on a server that has afresh install on RHEL 5. I was able to install Apache and PHP just fine., but I am having serious trouble with my MySQL installation. I tried the following:
yum install mysql-server mysql
And didn't get any errors or conflicts. Then I tried to start mysql with the following commands:
chkconfig --levels 235 mysqld on
service mysqld start
And get Timeout error occurred trying to start MySQL Daemon.
I checked my logs and see this error:
[ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist
I'm not sure where to go from here.
For reference I am using RHEL 5 and installed the latest versions of PHP 5 and Apache.
After chown and chgrp'ing /var/lib/mysql per the answer by #Bad Programmer, you may also have to execute the following command:
sudo mysql_install_db --user=mysql --ldata=/var/lib/mysql
Then restart your mysqld.
Uninstall mysql using yum remove mysql*
Recursively delete /usr/bin/mysql and /var/lib/mysql
Delete the file /etc/my.cnf.rmp
Use ps -e to check the processes to make sure mysql isn't still running.
Reboot server with reboot
Run yum install mysql-server. This also seems to install the mysql client as a dependency.
Give mysql ownership and group priveleges with:
chown -R mysql /var/lib/mysql
chgrp -R mysql /var/lib/mysql
Use service mysqld start to start MySQL Daemon.
I had this issue on arch linux as well. The issue was pacman installed the package in a different location than MySQL was expecting. I was able to fix the issue with this:
sudo mysql_install_db --user=mysql --basedir=/usr/ --ldata=/var/lib/mysql/
Hope this helps someone!
The root of my problem seemed to be selinux, which was turned on (enforcing)
automatically on OS install.
I wanted my mysql in /data.
After verifying that my.cnf had:
datadir=/data/mysql
(and leaving the socket at /var/lib/mysql)
I executed the command to turn off selinux for mysqld
(alternative is to turn it off completely):
setsebool -P mysqld_disable_trans=1
I ran the following commands:
> chown -R mysql .
> chgrp -R mysql .
> mysql_install_db --user=mysql
I started the mysql daemon and everything worked fine after that.
mysql_install_db –-user=mysql --ldata=/var/lib/mysql
Worked for me in Centos 7
initialize mysql before start on windows.
mysqld --initialize
When download mysql zip version, if run mysqld directly, you'll get this error:
2016-02-18T07:23:48.318481Z 0 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
2016-02-18T07:23:48.319482Z 0 [ERROR] Aborting
You have to run below command first:
mysqld --initialize
Make sure your data folder is empty before this command.
Just this command is enough to do the magic on centos 6.6
mysql_install_db
I just met the same problem with mysql 5.7 on OSX:
rm -rf {datadir}
mysqld --initialize --datadir {datadir}
mysqld --datadir {datadir}
If you move your datadir, you not only need to give the new datadir permissions, but you need to ensure all parent directories have permission.
I moved my datadir to a hard drive, mounted in Ubuntu as:
/media/*user*/Data/
and my datadir was Databases.
I had to set permissions to 771 to each of the media, user and Data directories:
sudo chmod 771 *DIR*
If this does not work, another way you can get mysql to work is to change user in /etc/mysql/my.cnf to root; though there are no doubt some issues with doing that from a security perspective.
For myself, I had to do:
yum remove mysql*
rm -rf /var/lib/mysql/
cp /etc/my.cnf ~/my.cnf.bkup
yum install -y mysql-server mysql-client
mysql_install_db
chown -R mysql:mysql /var/lib/mysql
chown -R mysql:mysql /var/log/mysql
service mysql start
Then I was able to get back into my databases and configure them again after I nuked them the first go around.
In my case the path of MySQL data folder had a special character "ç" and it make me get...
Fatal error: Can't open and lock privilege tables: Table 'mysql.host'
doesn't exist.
I'm have removed all special characters and everything works.
On CentOS EL 6 and perhaps on earlier versions there is one way to get into this same mess.
Install CentOS EL6 with a minimal installation. For example I used kickstart to install the following:
%packages
#core
acpid
bison
cmake
dhcp-common
flex
gcc
gcc-c++
git
libaio-devel
make
man
ncurses-devel
perl
ntp
ntpdate
pciutils
tar
tcpdump
wget
%end
You will find that one of the dependencies of the above list is mysql-libs. I found that my system has a default my.cnf in /etc and this contains:
[mysqld]
dataddir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
When you build from the Generic Linux (Architecture Independent), Compressed TAR Archive your default data directory is /usr/local/mysql/data which conflicts with the /etc/my.cnf already present which defines datadir=/var/lib/mysql. Also the pid-file defined in the same file does not have permissions for the mysql user/group to write to it in /var/run/mysqld.
A quick remedy is to mv /etc/my.cnf /etc/my.cnf.old which should get your generic source procedure working.
Of course the experience is different of you use the source RPMs.
I had the same issue in trying to start the server and followed the "checked" solution.
But still had the problem. The issue was the my /etc/my.cnf file was not pointing to my
designated datadir as defined when I executed the mysql_install_db with --datadir defined. Once I updated this, the server started correctly.
If you have a server which used to happily run MySQL, but now gives this error, then an uninstall and re-install of MySQL is overkill.
In my case, the server died and took a few disk blocks with it. This affected a few files, including /var/lib/mysql/mysql/host.frm and /var/lib/mysql/mysql/proc.frm
Luckily, I could copy these from another server, and this got me past that table error.
I got similar error on overlayfs (overlay2) that is the default on Docker for Mac.
The error happens when starting mysql on the image, after creating a image with mysql.
2017-11-15T06:44:22.141481Z 0 [ERROR] Fatal error: Can't open and lock privilege tables: Table storage engine for 'user' doesn't have this option
Switching to "aufs" solved the issue.
(On Docker for Mac, the "daemon.json" can be edited by choosing "Preferences..." menu, and selecting "Daemon" tab, and selecting "Advanced" tab.)
/etc/docker/daemon.json :
{
"storage-driver" : "aufs",
"debug" : true,
"experimental" : true
}
Ref:
https://github.com/moby/moby/issues/35503
https://qiita.com/Hige-Moja/items/7b1208f16997e2aa9028
In Windows run the following commands in the command prompt as adminstrator
Step 1:
mysql_install_db.exe
Step 2:
mysqld --initialize
Step 3:
mysqld --console
Step 4:
In windows
Step 4:
mysqladmin -u root password "XXXXXXX"
Step 5:
mysql -u root -p
My case on Ubuntu 14.04.2 LTS was similar to others with my.cnf, but for me the cause was a ~/.my.cnf that was leftover from a previous installation. After deleting that file and purging/re-installing mysql-server, it worked fine.