Thank you for taking the time to file a bug report. It is very odd that you're having issues with /etc/mysql during package installation:
grep: /etc/mysql/: No existe el archivo o el directorio Downgrade from (at least) 10.3 to 5.7 is not possible. ln: fallo al crear el enlace simbólico '/etc/mysql/FROZEN': No existe el archivo o el directorio Since it seems likely to me that this is a local configuration problem, rather than a bug in Ubuntu, I am marking this bug as 'Incomplete'. However, if you believe that this is really a bug in Ubuntu, then we would be grateful if you would provide a more complete description of the problem with steps to reproduce, explain why you believe this is a bug in Ubuntu rather than a problem specific to your system, and then change the bug status back to "New". For local configuration issues, you can find assistance here: http://www.ubuntu.com/support/community ** Changed in: mysql-8.0 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883307 Title: package mysql-server-8.0 (not installed) failed to install/upgrade: el subproceso nuevo paquete mysql-server-8.0 script pre-installation devolvió el código de salida de error 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-8.0/+bug/1883307/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs