Monthly Archives: July 2011

amazon cloud is expanding

According to itpro the amazon cloud is expanding !

Customers now include NASA, the US Department of State, Siemens, Pfizer and Nasdaq.

At the end of the second quarter, Amazon S3 held more than 449 billion objects, up 71 percent from the end of last year, according to the official AWS blog.

And in January 3,674 of the top 500,000 websites were using Amazon EC2.

oracle virtualbox copying hds doesnt work

On Windoz 7 64bit VBoxManage can be found in C:Program FilesOracleVirtualBox

Apparently one way to clone a vbo hd is

VBoxManage internalcommands sethduuid orac.vdi
UUID changed to: b534130a-XXXX-4e33-XXXX-9d64XXXX3ea2
but this does NOT work and you have use 'clonehd' instead !

UUID changed to: b534130a-XXXX-4e33-XXXX-9d64XXXX3ea2

VBoxManage clonehd orac.vdi orac2.vdi


‘VDI’. UUID: a1922153-9c96-4629-9eb9-c753e43664d8

See also


VirtualBox front ends

Oracle VirtualBox ships with six front ends for sysadmins and sysmans to chose from !

  • VirtualBox – the Qt GUI front end implementing the manager and running VirtualBox VMs.
  • VBoxManage – a less user-friendly but more powerful alternative.
  • VBoxSDL – a simple graphical front end based on the SDL library.
  • VBoxHeadless – a VM front end which does not directly provide any video output and keyboard/mouse input, but allows redirection via VirtualBox Remote Desktop Extension.
  • vboxwebsrv – the VirtualBox web service process which allows for controlling a VirtualBox host remotely.
  • VirtualBox Python shell – a Python alternative to VBoxManage.

virtualbox headless

VirtualBox comes with a front-end called VBoxHeadless, which produces no visible output on the host at all, but instead only delivers VRDP data.

That allows you create server hardware whose only purpose is to host VMs which run remotely over VRDP and so you dont need to have a graphical user interface on the server at all.

VBoxHeadless has no dependencies on the X Window system on Linux and Solaris hosts.

virtual box users and USB access

The virtualbox gnu/inux installers create the system user group vboxusers during installation.
Any system user who is going to use USB devices from VirtualBox guests must be member of that group.
A user can be made member of the group vboxusers through the GUI user/group management or at the command line with
# usermod -a -G vboxusers username
Note that adding an active user to that group will require that user to log out and back in again. This should be done manually after successful installation of the package.

rpath openstack

the root password for a centos vmware rpath openstack software appliance is either “”, “password” or what you specified if you installed it from the iso !

rpath openstack iso

the rpath openstack iso and vmware software appliance features

cloud grid build technologies

see also