[Bug 1694126] Re: package mysql-server-5.7 (not installed) failed to install/upgrade: il sottoprocesso nuovo script pre-installation ha restituito lo stato di errore 1

[Nish Aravamudan]

Hello and thank you for filing this bug report. It appears you installed
a non-ubuntu version of MySQL at some point:

Selezionato il pacchetto mysql-server-5.7 non precedentemente selezionato.
Preparativi per estrarre .../mysql-server-5.7_5.7.18-0ubuntu0.17.04.1_i386.deb...
Aborting downgrade from (at least) 10.1 to 5.7.
If are sure you want to downgrade to 5.7, remove the file
/var/lib/mysql/debian-*.flag and try installing again.
dpkg: errore nell'elaborare l'archivio /var/cache/apt/archives/mysql-server-5.7_5.7.18-0ubuntu0.17.04.1_i386.deb (--unpack):
 il sottoprocesso nuovo script pre-installation ha restituito lo stato di errore 1

Please follow the instructions as specified in the above message.

** Changed in: mysql-5.7 (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1694126

Title:
  package mysql-server-5.7 (not installed) failed to install/upgrade: il
  sottoprocesso nuovo script pre-installation ha restituito lo stato di
  errore 1

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