Question

Unable to Move MySQL DB Location - Ubuntu 18.04.3 (LTS) x64

Posted on September 11, 2019
Storage Ubuntu 18.04 Block Storage MySQL Databases
Asked by MattyBob

I followed the steps below exactly and the MySQL service will not start. This is a new Droplet with NO pre-existing data.

Reference:: https://www.digitalocean.com/community/tutorials/how-to-move-a-mysql-data-directory-to-a-new-location-on-ubuntu-18-04

Here are the apps I installed which include MySQL:: apt-get install apache2 mysql-server php php-mysql libapache2-mod-php php-xml php-mbstring php-apcu php-intl imagemagick inkscape php-gd php-cli php-curl git php-bz2

Errors from JOURNALCTL -XE:: – Unit mysql.service has begun starting up. Sep 11 16:26:09 ark03 audit[2197]: AVC apparmor=“DENIED” operation=“open” profile=“/usr/sbin/mysqld” name=“/sys/devices/system/node/” pid=2197 comm=“mysqld” requested_mask=“r” denied_mask=“r” fsuid=0 ouid=0 Sep 11 16:26:09 ark03 kernel: audit: type=1400 audit(1568219169.013:320): apparmor=“DENIED” operation=“open” profile=“/usr/sbin/mysqld” name=“/sys/devices/system/node/” pid=2197 comm=“mysqld” requested_mask= Sep 11 16:26:09 ark03 audit[2202]: AVC apparmor=“DENIED” operation=“open” profile=“/usr/sbin/mysqld” name=“/sys/devices/system/node/” pid=2202 comm=“mysqld” requested_mask=“r” denied_mask=“r” fsuid=111 ouid= Sep 11 16:26:09 ark03 kernel: audit: type=1400 audit(1568219169.053:321): apparmor=“DENIED” operation=“open” profile=“/usr/sbin/mysqld” name=“/sys/devices/system/node/” pid=2202 comm=“mysqld” requested_mask=

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MattyBob • September 11, 2019

Accepted Answer

Nevermind. It seems I can’t read… The KB works.

MattyBob • September 11, 2019

I added the following to the /etc/apparmor.d/usr.sbin.mysqld file:

/proc//status r, /sys/devices/system/node/ r, /sys/devices/system/node/node/meminfo r, /sys/devices/system/node// r, /sys/devices/system/node/* r,

Attempted to start MySQL.

Sep 11 16:39:21 ark03 mysqld[22519]: Initialization of mysqld failed: 0 Sep 11 16:39:21 ark03 systemd[1]: mysql.service: Control process exited, code=exited status=1 Sep 11 16:39:22 ark03 sshd[22363]: Failed password for root from 218.92.0.207 port 19597 ssh2 Sep 11 16:39:23 ark03 systemd[1]: mysql.service: Failed with result ‘exit-code’. Sep 11 16:39:23 ark03 systemd[1]: Failed to start MySQL Community Server.

How the hell is a Chinese IP in the logs??

% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to ‘218.90.0.0 - 218.94.255.255’ % Abuse contact for ‘218.90.0.0 - 218.94.255.255’

inetnum: 218.90.0.0 - 218.94.255.255 netname: CHINANET-JS descr: CHINANET jiangsu province network descr: China Telecom descr: A12,Xin-Jie-Kou-Wai Street descr: Beijing 100088