OCFS2 File system and Snapshot with REFLINK
OCFS2 is a shared-disk file system designed for use in a cluster environment. It was developed by Oracle Corporation and is included in the Linux kernel. OCFS2 stands for Oracle… Read more »
Oracle UEK7 Oracleasm kernel module has been removed
UEK is a Linux kernel Oracle created to address the needs of customers running demanding software such as Oracle Database on large scale systems. Its focus is performance, stability, and… Read more »
How do fsck at corrupted vm guest in Oracle OVM or Xen Server from vm images.
Hello guys! Sometimes after an incident in Oracle OVM could be that some virtual machines will go in corrupted and it will need to do an fsck about one o… Read more »
Oracle Dataguard queries check
We will check data guard status in SQL Plus in this article in many ways. Check 1: Check for LAG from V$DATAGUARD_STATS View. Check 2: It is also possible to… Read more »
Unable to open ‘/boot/vmlinuz-*-dpkg-new’: Operation not permitted
When try to update the kernel of Ubuntu and you’ve antivirus McAfee agent installed, you can have this error : The antivirus prevents the installation of the packages as my… Read more »
Pre-built Oracle Database 12.2/19c/21c Virtualbox Image
Updated! 19-Jun-2022 SYSTEM REQUIREMENTS: This hands-on lab runs in an Oracle VM VirtualBox environment. VirtualBox 6.1 is the minimum recommended Version. In order to run the lab effectively you will… Read more »
Upgrading Oracle Linux 7 to 8 using Leapp
Leapp is a Desktop DevTool that handles the management and security of your cloud credentials for you. I was wondering the other day how can I easily upgrade a OL7… Read more »
Oracle Database tracing LDAP from CMU to AD
Oracle Database from 18c and above can authenticate and authorize Microsoft Active Directory users with the database directly without intermediate directories or Oracle Enterprise User Security (like Oracle EUS 12c)…. Read more »
How to find Exadata database machine version
Find Your Exadata Machine Version Are you really curious to see which version of Exadata you are using. Just follow the step and you are ready with the information$cat /opt/oracle.SupportTools/onecommand/databasemachine.xml… Read more »
How to upgrade all of the installed packages in OpenWRT
OpenWRT (from open wireless router) is an open-source project for embedded operating systems based on Linux, primarily used on embedded devices to route network traffic. The main components are Linux,… Read more »