Services Summary…Service “86b637b62fdf7a65e053f706e80a27ca” has 1 instance(s). Don’t freak out!

Those who install and create a database running in the Oracle release 12.2.0.3 launched by Oracle Corporation in February 2019 might get surprised about the unknown hash services shown in the listener due to the PDB databases. I must say that my first thought was, “What?????”. Write in the comments how was yours. My first information is: don’t freak out! This service was introduced by the Oracle Database release 12cR2 due to the possibility of creating a PDB as a Proxy PDB. Thus, what you can see of new in…

Unexpected ‘supportedOSCheck’ while installing Oracle database 19c in silent mode on Oracle Linux 8.2 64-bit (x86-64)

As usual, I checked all the pre-requisites for the installation of Oracle Database 19c on Oracle Linux 8.2. However, I didn’t expect to be surprised with the below error at the very beginning: I thought:” Did I miss Oracle Linux 8 isn’t supported with Oracle 19c?”. I was sure that I checked this before so I started googling around again and then I found that this error has happened in previous releases as 12.1 due to the fact that it does not contain Pre-req checks specific to OL /RHEL 8…