MariaDB - MySQL - ALL-DB Import - Table 'user' already exists

I am attempting to migrate from local MariaDB to Docker version which should in essence be as simple as migrating to a new SQL Server. I have setup the Docker container fine via but can't seem to import my "all-databases" dump.

This is what I get:

mysql -u root -p  < mariadb_alldb_*.sql
Enter password:
ERROR 1050 (42S01) at line 8022: Table 'user' already exists

Dump generated via :

mysqldump -u root -p --all-databases --skip-lock-tables > mariadb_alldb_"$(date '+%F')".sql

Update: This is run on a fresh docker container each time and I have created backups in a directory that I am importing from.

ls * | grep mariadb_alldb_
mariadb_alldb_2020-05-04.sql

Update2: Perhaps it's related to my docker setup?

Here is my docker cmd:

docker stop mariadb && docker rm mariadb
docker run -d --name="mariadb" \
-p 3306:3306 \
-e TZ="America/Whitehorse" \
-v "/opt/mariadb/conf/conf.d":"/etc/mysql/conf.d" \
-v "/opt/mariadb/backups":"/mnt/" \
--mount type=volume,dst=/var/run/mysqld,volume-driver=local,volume-opt=type=none,volume-opt=o=bind,volume-opt=device=/var/run/mysqld \
mariadb:latest

I am doing this import from the local machine, I have reproduced results from inside the container.

As someone already mentioned, this has to do with the mysql.user table being changed to a view in 10.4. The problem and solution is documented on the MariaDB website in MDEV-22127.

The solution is to simply add the following two lines to the top of your all-dbs.sql dump file:

DROP TABLE IF EXISTS `mysql`.`global_priv`;
DROP VIEW IF EXISTS `mysql`.`user`;

StackExchange Database Administrators Q#266480, answer score: 12