I did follow steps as installation guide shows and permission is 775. Installations process got stuck without set up any table in the database. Provider is Hosteurope where installation with 7.8 did work. Thanks for help.
install_hooks.php not found Installation 7.9.0
Check upgradeWizard.log to see what went wrong.
it could be many things. Often it is just PHP running out of memory, or taking too long and giving a timeout. Both of these things can be tweaked in php.ini (if your hosting lets you - otherwise you have to ask them).
About the permissions - remember it’s not just permissions that count, it’s also ownership. The two things work together.
Finally it did work and was my own fault of mistyping database name. Sorry - thank you - closed