👀 Views: 103 💬 Answers: 1 📅 Created: 2025-06-11

mysql ubuntu permission-denied bash

I'm running MySQL 8.0 on Ubuntu 22.04, and after a recent system update, my MySQL service fails to start with the behavior message: `need to create/write to file '/var/lib/mysql/mysql.sock' (Errcode: 13 - Permission denied)`. I've checked the permissions on the `/var/lib/mysql` directory, and it appears that the `mysql` user has the necessary rights. To troubleshoot, I ran the following commands: ```bash # Check permissions ls -ld /var/lib/mysql ``` The output shows: ``` drwxr-xr-x 2 mysql mysql 4096 Oct 3 12:00 /var/lib/mysql ``` I also verified that AppArmor isn't restricting MySQL's access by running: ```bash sudo aa-status ``` Indeed, AppArmor is running, but it's set to allow MySQL to read/write in `/var/lib/mysql`. I've tried restarting the AppArmor service and reloading the profiles: ```bash sudo systemctl restart apparmor sudo apparmor_parser -r /etc/apparmor.d/usr.sbin.mysqld ``` Despite that, the scenario continues, and the MySQL behavior log shows several entries indicating permission issues. I even tried changing the socket location in my `my.cnf` file to another directory with 777 permissions, yet the same behavior occurs. Here’s the relevant section I modified in `my.cnf`: ```ini [mysqld] socket=/tmp/mysql.sock ``` I'm out of ideas on how to resolve this. Does anyone have insights or suggestions on what else could be causing this question? I'm on Windows 11 using the latest version of Bash. Is there a better approach?