root@fog-desktop:/home/admin# systemctl restart mariadb

^C
root@fog-desktop:/home/admin# journalctl -xe
--
-- Unit FOGPingHosts.service has finished shutting down.
Jul 30 12:15:09 fog-desktop systemd[1]: Stopped FOGImageSize.
-- Subject: Unit FOGImageSize.service has finished shutting down
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit FOGImageSize.service has finished shutting down.
Jul 30 12:15:09 fog-desktop systemd[1]: Stopped FOGSnapinHash.
-- Subject: Unit FOGSnapinHash.service has finished shutting down
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit FOGSnapinHash.service has finished shutting down.
Jul 30 12:15:09 fog-desktop systemd[1]: Stopped FOGScheduler.
-- Subject: Unit FOGScheduler.service has finished shutting down
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit FOGScheduler.service has finished shutting down.
Jul 30 12:15:09 fog-desktop audit[30403]: AVC apparmor="DENIED" operation="sendmsg" info="Failed name lookup - d
Jul 30 12:15:09 fog-desktop kernel: audit: type=1400 audit(1596129309.601:54): apparmor="DENIED" operation="send
Jul 30 12:15:28 fog-desktop dbus-daemon[1319]: [session uid=1001 pid=1319] Activating via systemd: service name=
Jul 30 12:15:28 fog-desktop systemd[1261]: Configuration file /usr/lib/systemd/user/gnome-terminal-server.servic
Jul 30 12:15:28 fog-desktop systemd[1261]: Starting GNOME Terminal Server...
-- Subject: Unit UNIT has begun start-up
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit UNIT has begun starting up.
Jul 30 12:15:28 fog-desktop dbus-daemon[1319]: [session uid=1001 pid=1319] Successfully activated service 'org.g
Jul 30 12:15:28 fog-desktop systemd[1261]: Started GNOME Terminal Server.
-- Subject: Unit UNIT has finished start-up
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit UNIT has finished starting up.
--
-- The start-up result is RESULT.
Jul 30 12:15:29 fog-desktop gnome-session[30498]: /usr/lib/gnome-session/gnome-session-binary 3.28.1
Jul 30 12:15:49 fog-desktop sudo[30298]: pam_unix(sudo:session): session closed for user root
Jul 30 12:15:55 fog-desktop sudo[30650]:    admin : TTY=pts/0 ; PWD=/home/admin ; USER=root ; COMMAND=/bin/syste
Jul 30 12:15:55 fog-desktop sudo[30650]: pam_unix(sudo:session): session opened for user root by admin(uid=0)
Jul 30 12:15:58 fog-desktop sudo[30650]: pam_unix(sudo:session): session closed for user root
Jul 30 12:16:11 fog-desktop sudo[30670]:    admin : TTY=pts/0 ; PWD=/home/admin ; USER=root ; COMMAND=/usr/sbin/
Jul 30 12:16:11 fog-desktop sudo[30670]: pam_unix(sudo:session): session opened for user root by admin(uid=0)
Jul 30 12:16:11 fog-desktop audit[30403]: AVC apparmor="DENIED" operation="sendmsg" info="Failed name lookup - d
Jul 30 12:16:11 fog-desktop kernel: audit: type=1400 audit(1596129371.986:55): apparmor="DENIED" operation="send
Jul 30 12:16:14 fog-desktop audit[30403]: AVC apparmor="DENIED" operation="sendmsg" info="Failed name lookup - d
Jul 30 12:16:14 fog-desktop audit[30403]: AVC apparmor="DENIED" operation="sendmsg" info="Failed name lookup - d
Jul 30 12:16:14 fog-desktop kernel: audit: type=1400 audit(1596129374.210:56): apparmor="DENIED" operation="send
Jul 30 12:16:14 fog-desktop kernel: audit: type=1400 audit(1596129374.210:57): apparmor="DENIED" operation="send
Jul 30 12:16:14 fog-desktop systemd[1]: Stopped MariaDB database server.
-- Subject: Unit mariadb.service has finished shutting down
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit mariadb.service has finished shutting down.
Jul 30 12:16:14 fog-desktop systemd[1]: Starting MariaDB database server...
-- Subject: Unit mariadb.service has begun start-up
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit mariadb.service has begun starting up.
Jul 30 12:16:15 fog-desktop mysqld[30766]: 2020-07-30 12:16:15 139910428712064 [Note] /usr/sbin/mysqld (mysqld 1
Jul 30 12:16:15 fog-desktop audit[30766]: AVC apparmor="DENIED" operation="sendmsg" info="Failed name lookup - d
Jul 30 12:16:15 fog-desktop kernel: audit: type=1400 audit(1596129375.454:58): apparmor="DENIED" operation="send
Jul 30 12:16:19 fog-desktop sudo[30670]: pam_unix(sudo:session): session closed for user root
Jul 30 12:16:22 fog-desktop sudo[30794]:    admin : TTY=pts/0 ; PWD=/home/admin ; USER=root ; COMMAND=/usr/sbin/
Jul 30 12:16:22 fog-desktop sudo[30794]: pam_unix(sudo:session): session opened for user root by admin(uid=0)
Jul 30 12:16:24 fog-desktop sudo[30794]: pam_unix(sudo:session): session closed for user root
Jul 30 12:16:31 fog-desktop sudo[30803]:    admin : TTY=pts/0 ; PWD=/home/admin ; USER=root ; COMMAND=/usr/sbin/
Jul 30 12:16:31 fog-desktop sudo[30803]: pam_unix(sudo:session): session opened for user root by admin(uid=0)
Jul 30 12:16:37 fog-desktop sudo[30803]: pam_unix(sudo:session): session closed for user root
Jul 30 12:16:45 fog-desktop su[30812]: Successful su for root by admin
Jul 30 12:16:45 fog-desktop su[30812]: + /dev/pts/0 admin:root
Jul 30 12:16:45 fog-desktop su[30812]: pam_unix(su:session): session opened for user root by admin(uid=1001)
Jul 30 12:16:45 fog-desktop su[30812]: pam_systemd(su:session): Cannot create session: Already running in a sess
Jul 30 12:16:50 fog-desktop audit[30766]: AVC apparmor="DENIED" operation="sendmsg" info="Failed name lookup - d
Jul 30 12:16:50 fog-desktop kernel: audit: type=1400 audit(1596129410.610:59): apparmor="DENIED" operation="send
Jul 30 12:16:53 fog-desktop audit[30766]: AVC apparmor="DENIED" operation="sendmsg" info="Failed name lookup - d
Jul 30 12:16:53 fog-desktop audit[30766]: AVC apparmor="DENIED" operation="sendmsg" info="Failed name lookup - d
Jul 30 12:16:53 fog-desktop kernel: audit: type=1400 audit(1596129413.034:60): apparmor="DENIED" operation="send
Jul 30 12:16:53 fog-desktop kernel: audit: type=1400 audit(1596129413.034:61): apparmor="DENIED" operation="send
Jul 30 12:16:53 fog-desktop systemd[1]: Stopped MariaDB database server.
-- Subject: Unit mariadb.service has finished shutting down
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit mariadb.service has finished shutting down.
Jul 30 12:16:53 fog-desktop systemd[1]: Starting MariaDB database server...
-- Subject: Unit mariadb.service has begun start-up
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit mariadb.service has begun starting up.
Jul 30 12:16:53 fog-desktop mysqld[30916]: 2020-07-30 12:16:53 139648654302336 [Note] /usr/sbin/mysqld (mysqld 1
Jul 30 12:16:54 fog-desktop audit[30916]: AVC apparmor="DENIED" operation="sendmsg" info="Failed name lookup - d
Jul 30 12:16:54 fog-desktop kernel: audit: type=1400 audit(1596129414.270:62): apparmor="DENIED" operation="send
root@fog-desktop:/home/admin#
root@fog-desktop:/home/admin# systemctl -l status mariadb
● mariadb.service - MariaDB database server
   Loaded: loaded (/lib/systemd/system/mariadb.service; enabled; vendor preset: enabled)
   Active: activating (start) since Thu 2020-07-30 12:16:53 CDT; 34s ago
  Process: 30832 ExecStartPre=/bin/sh -c [ ! -e /usr/bin/galera_recovery ] && VAR= ||   VAR=`/usr/bin/galera_rec
  Process: 30829 ExecStartPre=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=
  Process: 30828 ExecStartPre=/usr/bin/install -m 755 -o mysql -g root -d /var/run/mysqld (code=exited, status=0
 Main PID: 30916 (mysqld)
    Tasks: 26 (limit: 4915)
   CGroup: /system.slice/mariadb.service
           └─30916 /usr/sbin/mysqld

Jul 30 12:16:53 fog-desktop systemd[1]: Starting MariaDB database server...
Jul 30 12:16:53 fog-desktop mysqld[30916]: 2020-07-30 12:16:53 139648654302336 [Note] /usr/sbin/mysqld (mysqld 1
root@fog-desktop:/home/admin#