Preparing to unpack .../mysql-client-8.0_8.0.25-0ubuntu0.20.04.1_amd64.deb ...
Unpacking mysql-client-8.0 (8.0.25-0ubuntu0.20.04.1) over (8.0.23-0ubuntu0.20.04.1) ...
Preparing to unpack .../mysql-server-8.0_8.0.25-0ubuntu0.20.04.1_amd64.deb ...
Unpacking mysql-server-8.0 (8.0.25-0ubuntu0.20.04.1) over (8.0.23-0ubuntu0.20.04.1) ...
Preparing to unpack .../mysql-server-core-8.0_8.0.25-0ubuntu0.20.04.1_amd64.deb ...
Unpacking mysql-server-core-8.0 (8.0.25-0ubuntu0.20.04.1) over (8.0.23-0ubuntu0.20.04.1) ...
Setting up mysql-server-core-8.0 (8.0.25-0ubuntu0.20.04.1) ...
Setting up mysql-client-8.0 (8.0.25-0ubuntu0.20.04.1) ...
Setting up mysql-server-8.0 (8.0.25-0ubuntu0.20.04.1) ...
mysqld will log errors to /var/log/mysql/error.log
mysqld is running as pid 9221
Job for mysql.service failed because the control process exited with error code.
See "systemctl status mysql.service" and "journalctl -xe" for details.
invoke-rc.d: initscript mysql, action "start" failed.
● mysql.service - MySQL Community Server
     Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
     Active: activating (auto-restart) (Result: exit-code) since Sat 2021-05-15 17:33:40 IST; 5ms ago
    Process: 10888 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=0/SUCCESS)
    Process: 10896 ExecStart=/usr/sbin/mysqld (code=exited, status=1/FAILURE)
   Main PID: 10896 (code=exited, status=1/FAILURE)
     Status: "Server startup in progress"
      Error: 13 (Permission denied)

May 15 17:33:57 akanksha systemd[1]: Failed to start MySQL Community Server.
May 15 17:33:57 akanksha systemd[1]: mysql.service: Scheduled restart job, restart counter is at 78.
May 15 17:33:57 akanksha systemd[1]: Stopped MySQL Community Server.
May 15 17:33:57 akanksha systemd[1]: Starting MySQL Community Server...
May 15 17:34:20 akanksha systemd[1]: mysql.service: Main process exited, code=exited, status=1/FAILURE
May 15 17:34:20 akanksha systemd[1]: mysql.service: Failed with result 'exit-code'.
May 15 17:34:20 akanksha systemd[1]: Failed to start MySQL Community Server.
May 15 17:34:20 akanksha systemd[1]: mysql.service: Scheduled restart job, restart counter is at 79.
May 15 17:34:20 akanksha systemd[1]: Stopped MySQL Community Server.
May 15 17:34:20 akanksha systemd[1]: Starting MySQL Community Server...
May 15 17:34:34 akanksha systemd[1]: mysql.service: Main process exited, code=exited, status=1/FAILURE
May 15 17:34:34 akanksha systemd[1]: mysql.service: Failed with result 'exit-code'.
May 15 17:34:34 akanksha systemd[1]: Failed to start MySQL Community Server.
May 15 17:34:34 akanksha systemd[1]: mysql.service: Scheduled restart job, restart counter is at 80.
May 15 17:34:34 akanksha systemd[1]: Stopped MySQL Community Server.
May 15 17:34:34 akanksha systemd[1]: Starting MySQL Community Server...
dpkg: error processing package mysql-server-8.0 (--configure):
 installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1