[Bug 1860277] Re: Failed mysql upgrade to 8.0 which is part of Ubuntu 19.10 upgrade cannot be repaired due to mysql-5.7 being unavailable after upgrade to Ubuntu 19.10

[Rafael David Tinoco]

Hello Jeroen,

Can you provide steps so I can reproduce this issue ?

What parts of mysql_upgrade inplace upgrade are not working ?

Trying to reproduce I get:

$ sudo mysql_upgrade -u root -p
Enter password:
The mysql_upgrade client is now deprecated. The actions executed by the upgrade client are now done by the server.
To upgrade, please start the new MySQL binary with the older data directory. Repairing user tables is done automatically. Restart is not required after upgrade.
The upgrade process automatically starts on running a new MySQL binary with an older data directory. To avoid accidental upgrades, please use the --upgrade=NONE option with the MySQL binary. The option --upgrade=FORCE is also provided to run the server upgrade sequence on demand.
It may be possible that the server upgrade fails due to a number of reasons. In that case, the upgrade sequence will run again during the next MySQL server start. If the server upgrade fails repeatedly, the server can be started with the --upgrade=MINIMAL option to start the server without executing the upgrade sequence, thus allowing users to manually rectify the problem.

Have you tried --upgrade=MINIMAL option when restarting the deamon ?

I'm flaging this as incomplete until you provide more information AND a
way we can reproduce what you have faced, but, there are some scenarios
that mysqld might need manual intervention in the inplace update for it
to finish.

Thank you

Rafael

** Changed in: mysql-8.0 (Ubuntu)
       Status: New => Incomplete

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Title:
  Failed mysql upgrade to 8.0 which is part of Ubuntu 19.10 upgrade
  cannot be repaired due to mysql-5.7 being unavailable after upgrade to
  Ubuntu 19.10

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