Category Archives: Oracle VM

Oracle VM

Fast Data Transfer between different hosts

I had some doubt about my OVM configuration running an Oracle Linux Server. The transfer rate from winscp (windows desktop machine – network card with 1 Gbps) to my dom-0 machine (100Mbs) was pretty bad and it’s a know problem, … Continue reading

Posted in Oracle manager (ovm manager), Oracle server (ovm server) | Tagged , ,

vt-x is not available; use PVM instead of HVM if you need to run VirtualBox inside your guest machine

You get this error when you try to run a VirtualBox inside on a physical machine which has not activated the support of VT-x from the bios. But how to solve this issue when you want to run a VirtualBox … Continue reading

Posted in Linux, Linux, Oracle server (ovm server), VBox | Tagged , , ,

OCFS2 File system and Snapshot with REFLINK

Digging into an efficient backup solution for my VM end me up to read OCFS2 File system used by Oracle VM and I discover one of it powerful capability : snapshot-ting with REFLINK. This feature allows a regular user … Continue reading

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OVM image file backup with tar and pigz to speed up archive process

After installing Oracle Fusion Application 11.1.7 on my OVM Server 3.2.6, I end up with at least 500Gb file for my Oracle VM. I almost spend 2 full days to install it, due to the *very long* installation process. So, … Continue reading

Posted in commands, Linux, Linux, Oracle server (ovm server), script | Tagged , , , ,

Can’t open /dev/sdb1 exclusively. Mounted filesystem?

I got this error when I tried to add a volume group in my VBOX Linux (guest) environment using the following command: Listing all my disk show this Strangely /dev/dm-5 matche the new disk that I have declared and then … Continue reading

Posted in commands, Linux, VBox | Tagged , ,

VitualBox Tips

Start automatically your VM on Windows restart On the start menu, type the command, and put a shortcut of your batch file (or simply create a shortcut from your VBOX, right click on your VM and click ‘Create shortcut on … Continue reading

Posted in VBox | Tagged , ,

Installing Ubuntu 13.10 on Oracle VM server 3.2.6

Even if this OS is not supported officially, you can install the Ubuntu Desktop 13.10 on your OVM server 3.2.6 When installing OS (Windows; *Nix like, or Ubuntu), you might select USB mouse Tablet for the mouse device, otherwise, you … Continue reading

Posted in Operating System, Oracle server (ovm server), Oracle VM, Ubuntu