Comments - MariaDB won't start after reboot, Ubuntu 20.04.6, exit status 127
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I found the same question on https://askubuntu.com/questions/1134530/how-can-i-configure-apparmor-to-allow-mariadb-load-a-shared-library/1492828#1492828 and gave it an answer.
Used the following as the syntax to allow mysqld to read and mmap the file (which is what shared libraries do)