There's no code for the interface for this. I did tell @SniperSister this at JAB - I should have put it in the JSST channel too. We need to figure out how this works now that we have a single page application rather than a multi-page app.

Leave this issue open - but this isn't a quick fix and we probably need to partly solve this with @coolcat-creations from a UX perspective

This is/should be a release blocker.

Indeed. Tagged as such :)

Just ti be sure also the installation language strings have been dropped ... https://github.com/joomla/joomla-cms/blob/3.8.2/installation/language/en-GB/en-GB.ini#L34-L36

They shouldn’t have been dropped

FWIW the language files need a good clean up and proper English strings for some labels

@wilsonge @dgt41 any updates on the installer problem with broken databases and the security checks?

I just tried to install J4-alpha11 on my system with the database residing on another server than "localhost".
This still is possible without any warning.
I would be happy to help out with testing this, if there is a solution...

Nothing yet in progress that I'm aware of. This is going to end up being a pretty major piece of work given the single page app nature now I think probably a few days to code something up

@zero-24 The first link https://github.com/joomla/joomla-cms/blob/4.0-dev/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php#L230 you give in the "Additional comments" leads to nowhere ... maybe you can replace it with a link to thesame code in the database framework package?

@richard67 you can find it here https://github.com/joomla-framework/database/blob/master/src/Mysqli/MysqliDriver.php#L220 now

@HLeithner Thanks. Maybe @zero-24 should update the link in the description?

updated.

I think I will work on it soon.

Hmm, maybe the checks have to be added to routine "validateDbConnection" in file "SetupModel.php" and not to routine "initialise" in file "DatabaseModel.php"?

@zero-24 I see that the commented out code is inside the if (in_array($options->db_type, ['pgsql', 'postgresql'])) block in file "DatabaseModel.php". It should be below the next closing } so it comes after that "if" block. Maybe that was the reason why it did not work? And maybe it should be moved to routine "validateDbConnection" in file "SetupModel.php", like I wrote in my previous comment?

@richard67 there's nothing in the front end to support this so without creating some html and js this won't work.
Also from a UX point of view the checks are better to kick off before start asking the user to input anything. I do understand that the current code is checking the db but maybe you could twist the logic a bit to fit in the preinstall checks. It will make a much more better UX experience than convoluting the steps and confusing users by pausing the process and asking them to do the file upload. In sort, the concept needs some rethinking

@dgrammatiko I see no html to be created, can be all done with alerts. am working on it, and parts are already working. If the check make sense or not is on the sst to decide, they once have requiested it as far as I know, and I only wanna solve this issue here and maybe improve that a bit. If later someone says throw it away I have no problem with it.

PR is #27360 , but it is still work in progress so please don't close this issue yet.

PR #27360 is ready for testing. This issue can be closed. @zero-24 Please test.

Closed as having PR.