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Symlinking MySQL data files 2012 January 19

Filed under: technology — ecorrado @ 18:01:30

Due to space issues, I had to move my MySQL data files (/var/lib/mysql) on a Ubuntu box to another file system. I did that and created a symlink, but MySQL would not start. It turns out to be an easy fix. I found a post on MySQL Forums from someone who had a similar problem, and someone named Richard Guy posted my solution:

Did you fix the apparmor config file for mysqld and restart apparmor?

first you need to edit /etc/apparmor.d/usr.sbin.mysqld and add the new fully qualified (ie, no symbolic link) path(s). [you may want to leave the original /var/lib/mysql entries intact :-) ]

then “restart” apparmor:

sudo invoke-rc.d apparmor reload

for more info, see https://help.ubuntu.com/community/AppArmor

I edited the file as appropriate, and MySQL started fine and now I don’t have to worry about my disk space filling up again.

 

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