Mysql backup restore 5.6 to 8.0.33 xtrabackup 2.4

MySQL & MariaDB Percona XtraBackup
1

I tried to restore the db I obtained from Mysql 5.6 with Percona xtrabackup, with perconaxtradb 8.0.33 and xtrabackup 2.4. Then, when I tried to run it with mysql@bootstrap, a problem occurred. I share the problem with you below. I’m waiting for your help.

2023-10-26T09:01:34.364427Z 1 [ERROR] [MY-012525] [InnoDB] Upgrade after a crash is not supported. This redo log was created with MySQL 5.7.40, and it appears corrupted. Please follow the instructions at http://dev.mysql.com/doc/refman/8.0/en/upgrading.html
2023-10-26T09:01:34.364467Z 1 [ERROR] [MY-012930] [InnoDB] Plugin initialization aborted with error Generic error.
2023-10-26T09:01:34.696464Z 1 [ERROR] [MY-011013] [Server] Failed to initialize DD Storage Engine.
2023-10-26T09:01:34.697124Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2023-10-26T09:01:34.697213Z 0 [ERROR] [MY-010119] [Server] Aborting

I also changed it to ib_logfile1.old and ib_logfile0.old but it still didn’t work.

2

First of all you should not use this way to upgrade. You can use logical dump to upgrade through backup but not physical.
You should restore it using same version and then do the inplace upgrade.
Better to go from 5.6 → 5.7
And then after that 5.7 to 8.0
This is the proper way.
Xtrabackup while restoring needs crash recovery andd it wont do it with upgraded binaries.