Sub-process /usr/bin/dpkg returned an error code (1) при попытке устновки mariadb

dpkg -l | grep mysql
ii  mysql-client-8.0                      8.0.34-0ubuntu0.20.04.1                      amd64        MySQL database client binaries
ii  mysql-client-core-8.0                 8.0.34-0ubuntu0.20.04.1                      amd64        MySQL database core client binaries
ii  mysql-common                          5.8+1.0.5ubuntu2                             all          MySQL database common files, e.g. /etc/mysql/my.cnf
iF  mysql-server-8.0                      8.0.34-0ubuntu0.20.04.1                      amd64        MySQL database server binaries and system database setup
ii  mysql-server-core-8.0                 8.0.34-0ubuntu0.20.04.1                      amd64        MySQL database server binaries

apt purge mysql-server-8.0

dpkg: error while cleaning up:
 installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 mysql-server-8.0
Processing was halted because there were too many errors.
E: Sub-process /usr/bin/dpkg returned an error code (1)

apt-get autoremove
apt-get autoclean

strace -fe trace=%file -o apt_trace.log apt purge mysql-server-8.0
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libcgi-fast-perl libcgi-pm-perl libencode-locale-perl libfcgi-perl libhtml-parser-perl libhtml-tagset-perl
  libhtml-template-perl libhttp-date-perl libhttp-message-perl libio-html-perl liblwp-mediatypes-perl libtimedate-perl
  liburi-perl mecab-ipadic mecab-ipadic-utf8 mecab-utils
Use 'apt autoremove' to remove them.
The following packages will be REMOVED:
  mysql-server-8.0*
0 upgraded, 0 newly installed, 1 to remove and 3 not upgraded.
1 not fully installed or removed.
After this operation, 1456 kB disk space will be freed.
Do you want to continue? [Y/n] Y
(Reading database ... 104994 files and directories currently installed.)
Removing mysql-server-8.0 (8.0.34-0ubuntu0.20.04.1) ...
Failed to stop mysql.service: Unit mysql.service not loaded.
invoke-rc.d: initscript mysql, action "stop" failed.
dpkg: error processing package mysql-server-8.0 (--remove):
 installed mysql-server-8.0 package pre-removal script subprocess returned error exit status 1
dpkg: too many errors, stopping
Failed to stop mysql.service: Unit mysql.service not loaded.
invoke-rc.d: initscript mysql, action "stop" failed.
Failed to preset unit: File mysql.service: Link has been severed
/usr/bin/deb-systemd-helper: error: systemctl preset failed on mysql.service: No such file or directory
Failed to start mysql.service: Unit mysql.service not found.
invoke-rc.d: initscript mysql, action "start" failed.
Unit mysql.service could not be found.
dpkg: error while cleaning up:
 installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 mysql-server-8.0
Processing was halted because there were too many errors.
E: Sub-process /usr/bin/dpkg returned an error code (1)

dpkg -l | grep -v "^ii"
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                                  Version                                      Architecture Description
+++-=====================================-============================================-============-===============================================================================
rc  git                                   1:2.25.1-1ubuntu3.11                         amd64        fast, scalable, distributed revision control system
rc  linux-image-5.4.0-62-generic          5.4.0-62.70                                  amd64        Signed kernel image generic
rc  linux-modules-5.4.0-62-generic        5.4.0-62.70                                  amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.4.0-62-generic  5.4.0-62.70                                  amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  mariadb-client-10.3                   1:10.3.38-0ubuntu0.20.04.1                   amd64        MariaDB database client binaries
ic  mariadb-common                        1:10.3.38-0ubuntu0.20.04.1                   all          MariaDB common metapackage
rc  mariadb-server-10.3                   1:10.3.38-0ubuntu0.20.04.1                   amd64        MariaDB database server binaries
iF  mysql-server-8.0                      8.0.34-0ubuntu0.20.04.1                      amd64        MySQL database server binaries and system database setup

sudo apt-get remove --purge mysql-server mysql-client mysql-common
sudo apt-get autoremove
sudo apt-get autoclean
sudo rm -rf /var/lib/mysql
sudo rm -rf /etc/mysql

ls -al /lib/systemd/system/mysql.service
-rw-r--r-- 1 root root 529 Jun 14 14:30 /lib/systemd/system/mysql.service

apt install mariadb-server
...
*** debian-start (Y/I/N/O/D/Z) [default=N] ? Y

mysql_secure_installation
Enter current password for root (enter for none): 
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

systemctl start mariadb
systemctl enable mariadb

mysql_secure_installation
Change the root password? [Y/n] n
Remove anonymous users? [Y/n] Y
Disallow root login remotely? [Y/n] Y
Remove test database and access to it? [Y/n] Y
Reload privilege tables now? [Y/n] Y