Comments - Mariadb upgrade problem

So error 13 is a permission denied.

I'd normally assume Systemd's ProtectHome however you seem to be on /var/lib/mysql.

Ensure the [[selinux/#file-system-permission-errors|selinux content] of the /var/lib/mysql directory is correct with:

restorecon -Rv /var/lib/mysql

After trying a restart after that, if unsuccessful look at /var/log/audit/audit.log to see if selinux is block other interactions. It might be the file label on mariadbd executable isn't correctly.

I tried:

restorecon -Rv /var/lib/mysql

and am still getting the same error. As far as I can tell, my file permissions are also fine.

$ ls -la /var/lib/mysql
total 436380
drwxr-xr-x 12 mysql mysql      4096 Mar 23 20:06 .
drwxr-xr-x 51 root  root       4096 Mar 23 09:41 ..
-rw-rw----  1 mysql mysql     90112 Mar 23 20:06 aria_log.00000001
-rw-rw----  1 mysql mysql        52 Mar 23 20:06 aria_log_control
drwx------  2 mysql mysql      4096 Mar 23 10:10 gitea
-rw-rw----  1 mysql mysql      2695 Mar 23 20:06 ib_buffer_pool
-rw-rw----  1 mysql mysql 346030080 Mar 23 20:06 ibdata1
-rw-rw----  1 mysql mysql 100663296 Mar 23 20:06 ib_logfile0
drwx------  2 mysql mysql      4096 Dec 14 15:34 mhc
-rw-rw----  1 mysql mysql         0 Mar 23 09:46 multi-master.info
drwx------  2 mysql mysql      4096 Mar 23 10:06 mysql
srwxrwxrwx  1 mysql mysql         0 Mar 23 20:06 mysql.sock
drwx------  2 mysql mysql      4096 Mar 23 10:06 performance_schema

I have selinux disabled:

$ cat /etc/selinux/config 

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     minimum - Modification of targeted policy. Only selected processes are protected. 
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted

but if `restorecon -Rv /var/lib/mysql` isn't potentially damaging, I'll give it a try.

retorecon changes the extended attributes on the files only.