Mysql – xtrabackup doesn’t copy the binary log files (thesql-bin.xxxxx) shall i copy them manually? [solved]

After i followed the steps mentioned on the DigitalOcean
https://www.digitalocean.com/community/tutorials/how-to-create-hot-backups-of-mysql-databases-with-percona-xtrabackup-on-ubuntu-14-04 …
i coudldn't achive the expected result.

I am using a Server that has its binary-log option enabled

log_bin = /var/log/mysql/mariadb-bin

log_bin_index = /var/log/mysql/mariadb-bin.index

i do the following to backup my database using innobackupex command as follows

innobackupex --user=$username  --password=$password --no-timestamp /data/backups/new_backup

then i do apply-log to apply the copied transaction

innobackupex --apply-log /data/backups/new_backup

But once i:

1- stop my mysql server

2- move my /var/lib/mysql/* to /tmp/mysql/

3- restore (plus changing ownership) my backup using sudo innobackupex –copy-back /data/backups/new_backup

i couldn't start mysql service again because the /var/lib/mysql/ now doesn't have the binary log mysql-bin.xxxxxx.

here is what my /var/lib/mysql/ directory looks like

user@pc1:~$ ll /var/lib/mysql/
total 1205264
drwxr-xr-x  6 mysql mysql      4096 Jan 13 01:19 ./
drwxr-xr-x 45 root  root       4096 Oct 10 14:13 ../
drwx------  2 mysql mysql     73728 Jan  8 05:02 1bd3e0294da19198/
-rw-rw----  1 mysql mysql     16384 Jan  8 05:09 aria_log.00000001
-rw-rw----  1 mysql mysql        52 Jan  8 05:09 aria_log_control
-rw-r--r--  1 root  root          0 Oct 10 14:10 debian-10.0.flag
-rw-rw----  1 mysql mysql  79691776 Feb 11 06:22 ibdata1
-rw-rw----  1 mysql mysql 536870912 Feb 11 06:22 ib_logfile0
-rw-rw----  1 mysql mysql 536870912 Oct 10 14:14 ib_logfile1
-rw-rw----  1 mysql mysql         0 Oct 10 14:10 multi-master.info
drwxr-xr-x  2 mysql root       4096 Oct 10 14:10 mysql/
-rw-rw----  1 mysql mysql  45143857 Jan  8 04:54 mysql-bin.000002
-rw-rw----  1 mysql mysql       728 Jan  8 04:55 mysql-bin.000003
-rw-rw----  1 mysql mysql  35315670 Jan  8 05:08 mysql-bin.000004
-rw-rw----  1 mysql mysql      2513 Jan  8 05:09 mysql-bin.000005
-rw-rw----  1 mysql mysql     32133 Jan 12 23:43 mysql-bin.000006
-rw-rw----  1 mysql mysql     46855 Feb 11 06:22 mysql-bin.000007
-rw-rw----  1 mysql mysql         5 Jan 13 01:19 mysql.pid
-rw-rw----  1 mysql mysql      1961 Jan 13 01:19 mysql-slow.log
-rw-------  1 root  root         15 Oct 10 14:10 mysql_upgrade_info
drwx------  2 mysql mysql      4096 Oct 10 14:10 performance_schema/

and here is it after restoration

user@pc1:~$ ll /var/lib/mysql/
total 1147036
drwxr-x--- 6 mysql mysql      4096 Feb 11 06:33 ./
drwxr-xr-x 3 mysql mysql      4096 Feb 11 06:31 ../
drwxr-x--- 2 mysql mysql     65536 Feb 11 06:33 1bd3e0294da19198/
-rw-r----- 1 mysql mysql       419 Feb 11 06:33 backup-my.cnf
-rw-r----- 1 mysql mysql  79691776 Feb 11 06:33 ibdata1
-rw-r----- 1 mysql mysql 536870912 Feb 11 06:33 ib_logfile0
-rw-r----- 1 mysql mysql 536870912 Feb 11 06:33 ib_logfile1
-rw-r----- 1 mysql mysql  12582912 Feb 11 06:33 ibtmp1
drwxr-x--- 2 mysql mysql      4096 Feb 11 06:33 mysql/
drwxr-x--- 2 mysql mysql      4096 Feb 11 06:33 performance_schema/
-rw-r----- 1 mysql mysql        33 Feb 11 06:33 xtrabackup_binlog_info
-rw-rw-r-- 1 mysql mysql        38 Feb 11 06:33 xtrabackup_binlog_pos_innodb
-rw-r----- 1 mysql mysql       115 Feb 11 06:33 xtrabackup_checkpoints
-rw-r----- 1 mysql mysql       552 Feb 11 06:33 xtrabackup_info
-rw-r----- 1 mysql mysql   8388608 Feb 11 06:33 xtrabackup_logfile

Currently i am not doing replication using Master-Slave but i want the binary logs, my case only worked when i copy mysql-bin.xxxxx from the /tmp/mysql/ to the /var/lib/mysql/ for mysql service to be able to start !, Or when i disable the log-option and do manually some stuffs like changing /var/log/mysql/mariadb-bin.index to point to mysql-bin.000001 which i think it is complicated and not what xtrabackup is built for.

Do i have to disable binary-log option ?

Do i have to rsync the binary-log files beside the database?

How could i reconstruct the binary-log files from the restored version ?

Update [solved]

Thanks to hmkael and Michael Coburn

Michael Coburn mentioned that:
since i was using MariaDB i had to use MariaDB Backup instead of Percona XtraBackup, xtrabackup and or its replication would not copy binary logs.

more information in the link below:

https://www.percona.com/forums/questions-discussions/percona-xtrabackup/50864-i-failed-how-to-setup-a-slave-for-replication-please-help