It seems [instantclient-basic-linux.x64-23.7.0.25.01.zip](https://www.oracle.com/database/technologies/instant-client/linux-x86-64-downloads.html) is compiled using libaio.so.1, which does not exist in Ubuntu 24.04 as can be seen in [this post](https://askubuntu.com/questions/1511776/ubuntu-24-04-php-8-3-oci8-and-libaio-so-1). A symlink solves the issue. `sudo ln -s /usr/lib/x86_64-linux-gnu/libaio.so.1t64 /usr/lib/x86_64-linux-gnu/libaio.so.1` It is no stopper, but i just wasted too many valuable time wondering WHY! Please, at least document it. Regards.