VirtualBox: Failed to import appliance , Result Code: E_INVALIDARG (0x80070057)

Background: I uploaded one VirtualBox appliance to Google Drive to share with my friends. Appliance is a little-bit big one (30GB), that is why I divided it into 10 zip files using 7-zip software. My friend downloaded the appliance, started to import it, but he received the following error: Failed to import appliance C:\Users\<username>\Downloads\EM13cR2\EM13cR2.ova.Result Code: … Continue reading VirtualBox: Failed to import appliance , Result Code: E_INVALIDARG (0x80070057)

Oracle Backup & Recovery Hands-on Practice – Oracle Database 18c VM

Do you want to practice recovering from the following common failures (with a guided step-by-step procedure)?: Recovering from a critical file loss (SYSTEM , UNDO)Recovering from a non-critical file lossRecovering from the loss of the control fileRecovering from the loss of all control filesRecovering from the loss of an inactive redo log fileRecovering from the … Continue reading Oracle Backup & Recovery Hands-on Practice – Oracle Database 18c VM

VBoxClient: Could not find symbol address

Problem Description: While one of my VirtualBox machines was running, a power crash happened and I had to restart my laptop.After restarting the laptop, I started that virtual machine again, it started, but I got the following errors, and I was not able to access the machine from VirtualBox (seems to be hang), but I … Continue reading VBoxClient: Could not find symbol address

Virtual Machine with Oracle Database 12c R2 12.2 and Oracle Restart

https://youtu.be/qsepeUPQ-JU For more information on how to get this VM and other similar machines, please refer to:https://ahmedfattah.com/2020/06/13/oracle-virtual-machines-for-sale/ ThanksAhmed

Oracle Virtual Machines for Sale !

Are you looking for a virtual machine to do some hands-on labs or practice something (i.e. for Educational purposes}? Do you have the time to build these virtual machines yourself? Below are some really nice Virtual Machines, that I invested allot of time to build on Oracle Virtual Box, and that I used them personally … Continue reading Oracle Virtual Machines for Sale !

Oracle VirtualBox: Resize Linux Filesystem

We have an Oracle Linux Virtual Machine that we created in our previous post https://ahmedfattah.com/2019/12/10/oracle-virtualbox-create-new-virtual-machine/ up and running. When I examined the space on this VM, I found that I have only 2GB of free space available in "/" filesystem, which is not enough for me to do my work. So, I decided to increase … Continue reading Oracle VirtualBox: Resize Linux Filesystem

Oracle VirtualBox: Create new Virtual Machine

In this post we are going to create a new virtual machine and configure it to use an already existing virtual disk. This disk contains Oracle Linux 6.3 + Oracle Grid Infrastructure 12.2 + Oracle Database 12.2. We will create the machine two times, one time using the VirtualBox Manager (Gui Interface), and another time … Continue reading Oracle VirtualBox: Create new Virtual Machine

Oracle VirtualBox: Change Disk UUID

This is my first post after my blog was recognized by feedspot as one of the Top 100 Oracle blogs https://blog.feedspot.com/oracle_blogs/ . I'm really happy of this recognition, and I hope I'll continue providing high quality content and sharing a real oracle experience, thanks feedspot. Coming back to our subject today. I have a valuable … Continue reading Oracle VirtualBox: Change Disk UUID