O/S-Error: (OS 5) Access is denied while upgrading Oracle 12c Database to 19c

Posted on by Ahmed Abdel Fattah

Background: I was upgrading an Oracle Database version 12c(12.2.0.1) to version 19c (19.24) on Microsoft Windows.This is a manual command line line upgrade ( I didn't use DBUA).I started by doing some preparation tasks like::: Task #1: Run pre-upgrade checks:: Task #2: Run the preupgrade_fixups.sql:: Task #3: Connect to sqlplus and create pfile from pfile:: … Continue reading O/S-Error: (OS 5) Access is denied while upgrading Oracle 12c Database to 19c

How to change the hostname for an OCI Compute Instance

Posted on by Ahmed Abdel Fattah

Following are the steps that I followed to change the hostname of one OCI Compute Instance for one of my clients. Note that the operating system for this instance is Oracle Linux: 1. Use the hostnamectl utility to change the hostname hostnamectl set-hostname new_hostname 2. Update the /etc/hosts file with the new name [root@infodqmdm001 ~]# … Continue reading How to change the hostname for an OCI Compute Instance

OCI Compute Instance Hostname keeps changing after reboot

Posted on by Ahmed Abdel Fattah

I created an OCI compute Linux Instance with hostname = hostname_1. After a while, and based on the client request, I changed the above virtual machine hostname to be hostname_2.Client used this machine for a while, and then reboot it for some reason, but surprisingly, he found that the compute Instance hostname changed back to … Continue reading OCI Compute Instance Hostname keeps changing after reboot

How to change an Oracle OCI Compute Instance Name and Host Name?

Posted on by Ahmed Abdel Fattah

There is an Oracle OCI compute instance (with Oracle Linux 8 as operating system). There is a request from a customer to change both the compute instance name and its hostname.Here are the steps to do that. Change the Compute Instance Name: This is very simple. Just navigate to the compute instance: Navigation Menu ==> … Continue reading How to change an Oracle OCI Compute Instance Name and Host Name?

Oracle Database Cloud Service Provisioning is very slow

Posted on by Ahmed Abdel Fattah

While creating an oracle Database cloud service (or the new name “Oracle Base Database”): and after passing all the required information, and then clicking “Create DB System”, it started to provision the database system: The problem here is that it takes very long time to provision, I waited for 1 hours, 2,3,4 hours without luck. I … Continue reading Oracle Database Cloud Service Provisioning is very slow

How to Download Oracle software to VM in a private OCI subnet?

Posted on by Ahmed Abdel Fattah

I have a virtual machine located in an OCI private subnet. I need to install an Oracle software (e.g. Oracle ODI) in this VM.How I can download the software to this VM?We have a couple of options: 1- Download the software to your laptop, then sftp it to the VM (connecting through VPN and your … Continue reading How to Download Oracle software to VM in a private OCI subnet?

New and Updated OCI Courses

Posted on by Ahmed Abdel Fattah

The following OCI courses have new content updates. You can get the latest updates on the New Features being added on an ongoing basis to keep your learning current. Oracle Cloud Infrastructure DevOps Professional Developing Cloud Native Applications on OCI Oracle Cloud Infrastructure Architect Associate Build Visual Applications using Oracle Visual Builder Studio Introducing Content Management … Continue reading New and Updated OCI Courses