on centos 8, upgrade form mraidb 10.3 to 10.6 fails with:

sudo mysql_upgrade -u root -p
Enter password:
Major version upgrade detected from 10.3.17-MariaDB to 10.6.8-MariaDB. Check required!
Phase 1/7: Checking and upgrading mysql database
Processing databases
mysql
mysql.column_stats                                 OK
mysql.columns_priv                                 OK
mysql.db                                           OK
mysql.event                                        OK
mysql.func                                         OK
mysql.help_category                                OK
mysql.help_keyword                                 OK
mysql.help_relation                                OK
mysql.help_topic                                   OK
mysql.host                                         OK
mysql.index_stats                                  OK
mysql.plugin                                       OK
mysql.proc                                         OK
mysql.procs_priv                                   OK
mysql.proxies_priv                                 OK
mysql.roles_mapping                                OK
mysql.servers                                      OK
mysql.table_stats                                  OK
mysql.tables_priv                                  OK
mysql.time_zone                                    OK
mysql.time_zone_leap_second                        OK
mysql.time_zone_name                               OK
mysql.time_zone_transition                         OK
mysql.time_zone_transition_type                    OK
mysql.user                                         OK
Phase 2/7: Installing used storage engines... Skipped
Phase 3/7: Fixing views
Phase 4/7: Running 'mysql_fix_privilege_tables'
ERROR 1005 (HY000) at line 694: Can't create table `mysql`.`innodb_table_stats` (errno: 184 "Tablespace already exists")
ERROR 1005 (HY000) at line 698: Can't create table `mysql`.`innodb_index_stats` (errno: 184 "Tablespace already exists")
ERROR 1005 (HY000) at line 702: Can't create table `mysql`.`transaction_registry` (errno: 184 "Tablespace already exists")
ERROR 1005 (HY000) at line 774: Can't create table `mysql`.`gtid_slave_pos` (errno: 184 "Tablespace already exists")
FATAL ERROR: Upgrade failed

From: Vicențiu Ciorbaru <cvicentiu@gmail.com>
Sent: Wednesday, April 21, 2021 3:51 PM
To: Majed Zouhairy <majedzouhairy@hotmail.com>
Cc: maria-discuss@lists.launchpad.net <maria-discuss@lists.launchpad.net>
Subject: Re: [Maria-discuss] mysql_upgrade fails
 
Hi Majed,

What MariaDB version is this? What is the previous version and what is the current version you are upgrading to?

Is this from a linux distro, or where did you get the MariaDB binary from? If it's a distro, which one?

Vicențiu

On Wed, 21 Apr 2021 at 15:31, Majed Zouhairy <majedzouhairy@hotmail.com> wrote:
in last time's upgrade and today i got:
sudo mysql_upgrade -u root -p
Enter password:
Phase 1/7: Checking and upgrading mysql database
Processing databases
mysql
mysql.column_stats                                 OK
mysql.columns_priv                                 OK
mysql.db                                           OK
mysql.event                                        OK
mysql.func                                         OK
mysql.help_category                                OK
mysql.help_keyword                                 OK
mysql.help_relation                                OK
mysql.help_topic                                   OK
mysql.host                                         OK
mysql.index_stats                                  OK
mysql.plugin                                       OK
mysql.proc                                         OK
mysql.procs_priv                                   OK
mysql.proxies_priv                                 OK
mysql.roles_mapping                                OK
mysql.servers                                      OK
mysql.table_stats                                  OK
mysql.tables_priv                                  OK
mysql.time_zone                                    OK
mysql.time_zone_leap_second                        OK
mysql.time_zone_name                               OK
mysql.time_zone_transition                         OK
mysql.time_zone_transition_type                    OK
mysql.user                                         OK
Phase 2/7: Installing used storage engines... Skipped
Phase 3/7: Fixing views
Phase 4/7: Running 'mysql_fix_privilege_tables'
ERROR 1813 (HY000) at line 77: Tablespace for table '`mysql`.`innodb_table_stats`' exists. Please DISCARD the tablespace before IMPORT
ERROR 1813 (HY000) at line 81: Tablespace for table '`mysql`.`innodb_index_stats`' exists. Please DISCARD the tablespace before IMPORT
ERROR 1813 (HY000) at line 85: Tablespace for table '`mysql`.`transaction_registry`' exists. Please DISCARD the tablespace before IMPORT
ERROR 1813 (HY000) at line 153: Tablespace for table '`mysql`.`gtid_slave_pos`' exists. Please DISCARD the tablespace before IMPORT
ERROR 1146 (42S02) at line 642: Table 'mysql.innodb_index_stats' doesn't exist
ERROR 1243 (HY000) at line 643: Unknown prepared statement handler (stmt) given to EXECUTE
ERROR 1146 (42S02) at line 645: Table 'mysql.innodb_table_stats' doesn't exist
ERROR 1243 (HY000) at line 646: Unknown prepared statement handler (stmt) given to EXECUTE
ERROR 1146 (42S02) at line 650: Table 'mysql.innodb_index_stats' doesn't exist
ERROR 1146 (42S02) at line 654: Table 'mysql.innodb_table_stats' doesn't exist
ERROR 1146 (42S02) at line 657: Table 'mysql.innodb_table_stats' doesn't exist
FATAL ERROR: Upgrade failed

what to do?
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