[debian-mysql] Bug#920608: Bug#920608: mariadb-server-10.3: unknown variable 'innodb-large-prefix=on'

[Otto Kekäläinen]

Hello!

..
> When upgrading from 10.1 to 10.3 and not using the new 10.3 conf files..
>
> 2019-01-27 11:13:12 0 [ERROR] /usr/sbin/mysqld: unknown variable 'innodb-large-prefix=on'
> 2019-01-27 11:13:12 0 [ERROR] Aborting
>
> This is kinda ugly, can't previously known variables be ignored?
> I didn't use the new conf files yet because I didn't want to lose local modifications.

Yes, I guess it would be ideal if the upstream binary ignored unknown
configs instead of stopping on them. Maybe Marko has some comments on
this.

In packaging we could have some preinstall script that simply added a
comment to all lines with deprecated config items in the configs, and
would thus handle the migration automatically.
Here is the commit about the changes necessary to the default configs
in Debian: https://salsa.debian.org/mariadb-team/mariadb-10.3/commit/ae10a7fca8ddbc4f448f6a106440e9d8cbe14eac

Would you Olaf want to contribute to the maintainer scripts and write
up some sed commands etc that would do this?