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$DATAGUARD_STATS View. Check 2: It is also possible to… Read more »
Unable to open ‘/boot/vmlinuz-*-dpkg-new’: Operation not permitted
When try to update the kernel of Ubuntu and you’ve antivirus McAfee agent installed, you can have this error : The antivirus prevents the installation of the packages as my… Read more »
Pre-built Oracle Database 12.2/19c (19.14) Virtualbox Image
Updated! 23-Jan-2022 SYSTEM REQUIREMENTS: This hands-on lab runs in an Oracle VM VirtualBox environment. VirtualBox 6.1 is the minimum recommended Version. In order to run the lab effectively you will… Read more »
Upgrading Oracle Linux 7 to 8 using Leapp
Leapp is a Desktop DevTool that handles the management and security of your cloud credentials for you. I was wondering the other day how can I easily upgrade a OL7… Read more »
Oracle Database tracing LDAP from CMU to AD
Oracle Database from 18c and above can authenticate and authorize Microsoft Active Directory users with the database directly without intermediate directories or Oracle Enterprise User Security (like Oracle EUS 12c)…. Read more »
How to find Exadata database machine version
Find Your Exadata Machine Version Are you really curious to see which version of Exadata you are using. Just follow the step and you are ready with the information$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 »
Nextcloud 21 stop working after upgrade mariadb 10.6.X
If you have upgraded MariaDB 10.5 to 10.6, you will see that Nextcloud 21 will stop working and you’ll see this message : In the log, if enabled, you can… Read more »
Comparison Between Btrfs and XFS Filesystems
There are many filesystems available for use with Linux. The most common Linux filesystems include Ext4, Btrfs, XFS, and ZFS. Every filesystem has its unique use cases, pros, and cons…. Read more »