XVA won’t start after successful import

I converted a physical machine (Windows XP) successfully & imported to my XenServer with XenConvert. The import appears to be successful. However, when I start the machine, all I get is a black console screen with the following info:

Citrix XenServer
cirrus-compatible VGA is detected

Processor 1: Xen(R) Virtual CPU
XS Virtual IDE Controller Hard Drive (73GB)
XS Virtual ATAPI-4 CD-Rom/DVD-Rom

Boot device: Hard Drive – success.

Some licensed legacy application was running on this machine and we needed to eliminate any physical PC in Datacenter.
Else there was no need to import XP rather would have built new one.
Well after repeated reboot no success with the VM, searching the forum someone suggested to fix boot sector with Windows XP repair disk.
The iso of existing XP-SP3 didn’t offer repair screen since the original install didn’t match the iso file.

SystemRescueCd-x86-2.5.1 iso came handy, booted from this gentoo based linux distro and fixed the boot sector with “ntfsfix”.
Disconnected the iso and voila the VM booted successfully.

So far only the vm booted successfully, but any geek would guess that due to HAL changes between the physical and virtual, XP ends up in re-activation process.
Without network the VM cannot connect to internet.. how will i fix this.
look out for next blog post… 🙂

Amazing product, technologies & things I use every day of my life.






iPhone 3GS



SUV Blazer 1998


Server Virtualization Home Lab

XenServer v6.2


Cloud Storage, Cross Platform Sync




VMware WorkStation v8.0


Wrist watch

Sapphire Tungsten


Sync notes, capture anything, access anywhere



Search engine, personal email

Search, Gmail


Personal Laptop

HP Pavilion DV6000


Virtual Machine OS

Windows 7 x64


Cellular Provider

Alwaha: Prepaid Voice/Data 3G Sim




Open Source

Personal Laptop OS

Ubuntu Desktop Linux  11.10


Social Interaction

Facebook, Twitter, Linkedin & Pinterest


DSL BroadBand & Landline Telephone

Mband Jood: 4 MB Plus Free Calls


And the list goes on and on and on and on…..

Next time more on individual product, technologies, things & favorites

Share yours.

A stuck and hang VM on Xenserver

Needed to upgrade the XenServer (v6.0) host memory, while shutting down the VM’s running on the host, i encountered, two of windows x64 guests stuck and hung while shutting down.
When attempted to force shutdown, it complained that “Another operation involving the object is currently in progress “

Goggling for the error found the following link which fixed the issue:
here and here

Here’s quote from one of the post that finally fix it for me (you need to login to server’s shell to execute the below command) :
1 – “xe vm-list” to get the uuid of the VM that is hung
2 – “list_domains” to list the domain uuid’s so you can determinethe domain # of the VM above by matching the uuids from this output with

the uuid for your VM from the previous command.
3 – “/opt/xensource/debug/destroy_domain -domid XX” where XX is the domain number from the previous command
4 – “xe vm-reboot uuid=XXXX –force” where XXXX is the uuid from the first vm-list command for your VM. (name-label may work but didn’t work this time for me so I used the uuid)

after following the above instructions almost worked but VM’s were still stuck however, adding a “xe-toolstack-restart” at the end took care of the problem.

Changing the World for the Better with Big Data, The Cloud

Original Post here

It’s an exciting time to be in technology. As IT professionals, we get to say we are the generation that witnessed how Big Data transformed the world. we saw how virtualization revolutionized IT and gave birth to the cloud. But more importantly, we get to say that we are the generation that witnessed how technology helped us feed the world quicker, warm the world quicker, cure the world and maybe even heal the world.

You see, everything we do on a daily basis as IT professionals means something if we can put it in context. They say every action generates a reaction, an event could lead to a sequence of events or could have a trickle effect, but there is so much data out there, so much information and our brain can only process small nuggets, can only address information from a very narrow perspective.

Bottom line is, we are slow, and most research takes years. It takes years because it is necessary to correlate data and make sense of it. So, what if there was a way to correlate data and all sorts of information in real time? If that were possible, would you not be able to make better decisions for your business? Would that not enable you to find cures for disease faster? Or maybe even avert epidemics altogether? Maybe even avert wars? Stop terrorist attacks? The possibilities are limitless. They say society is knowledge, and knowledge is power. Well, Big Data promises to deliver information of all sorts, correlate it and analyze it so that you can make a better, more informed decision in real time.

Enough philosophy — let’s look at an example. What if the shortage in certain types of food, which is high in certain vitamins was responsible for people getting sick? Getting the flu? This type of data research and analysis would take years to gather, to understand and to conclude. The data would be so old and after-the-fact that it would only be useful in university studies and research papers. So, what if that information was available in real time? What can government do with it? How about they alert the communities mostly affected, suggest certain vitamin intakes or perhaps the consumption of other foods high in that vitamin. What about pharmaceutical companies? They could use that data to develop a cure to a flu variation that has not spread yet. But you will say that is all for large enterprise. I say Big Data is for all sizes of enterprise. If you owned a pharmacy, would this information help you? Absolutely it would. Based on Big Data analysis, you might stock more of a certain type of medicine

That’s just one example of many on how Big Data can impact and better our lives, but processing that large amount of data requires a platform capable of handling that amount of data, computing it fast enough and is capable of scaling as fast as we generate data. Today, there are many platforms capable of doing that. Hadoop is one such platform, capable of ingesting structured and unstructured data, Hadoop is quickly becoming the platform of choice and has garnered support from the three largest database developers: Microsoft, Oracle and IBM.

The power of Hadoop is that you can deploy it on standard x86 computers and you can scale it by adding more nodes, a true implementation of grid computing. As a result, Big Data can be leveraged by large and small enterprises. As the data grows and your ability to manage it becomes more challenging, there is always the cloud, ready and able to address these concerns, able to scale, absorbing large quantities of data and unlimited computational resources.

Make no mistake, Big Data is here and enterprises that appreciate it, leverage it, will reap the benefits and grow substantially. Big Data for me is the first time I can literally appreciate the technology beyond the geeky aspect of engineering or putting it all together, and being able to know that our efforts make a difference in the world we live in.

How to Sysprep Windows Server 2008

I went to the installation DVD and couldn’t find sysprep. A quick google later and a bit of poking around revealed that sysprep is now installed by default on Windwos Server 2008. You can find it at:


The experience is also streamlined considerably. Simply run sysprep.exe above and you are presented with:

Check the “Generalize” checkbox (regenerates system SID), change the Shutdown Options to “Shutdown”, and click OK. The system will go through the sysprep process and shut itself down.

original post here

With Linux 3.0 the Xen Hypervisor now can run natively with Dom0

“The Xen hypervisor now can run natively with Dom0 (Domain 0) privileges. This gives it, like Linux’s Kernel-based Virtual Machine (KVM), the ability to work at the lowest possible level of the Linux kernel. In practical terms this means Xen virtual machines should run faster.”

wow, virtualization i love it…

source: here

My freeVPS..


Today i signed up for amazons free usage tier for its AWS (Amazon Web Service)
Whats more am leveraging this sign-up for bitnami (unfortunately i missed recent 3 months free VPS off from bitnami) but never-mind, still i own AWS instance for 1 year. Also am hooking up rightscale free edition.

As a new AWS user, i will be able to take advantage of the following services for a year for free

  • “750 hours of Amazon EC2 Linux Micro Instance usage (613 MB of memory and 32-bit and 64-bit platform support) – enough hours to run continuously each month”
  • “750 hours of an Elastic Load Balancer plus 15 GB data processing”
  • “10 GB of Amazon Elastic Block Storage, plus 1 million I/Os, 1 GB of snapshot storage, 10,000 snapshot Get Requests and 1,000 snapshot Put Requests”
  • “5 GB of Amazon S3 storage, 20,000 Get Requests, and 2,000 Put Requests”
  • “30 GB per of internet data transfer (15 GB of data transfer “in” and 15 GB of data transfer “out” across all services except Amazon CloudFront)”
  • “25 Amazon SimpleDB Machine Hours and 1 GB of Storage”
  • “100,000 Requests of Amazon Simple Queue Service”
  • “100,000 Requests, 100,000 HTTP notifications and 1,000 email notifications for Amazon Simple Notification Service”

Amazon Web Services already has far reaching influence. Its suite of products is deeply integrated into everything from web services like Tumblr to products from software companies like AutoDesk.

America’s largest online retailer is best known as, well, a retailer, but a free AWS tier signals an increased interest in web technologies. It’s an obvious statement, but by hooking developers early, Amazon is expanding its footprint on the web. Free Amazon Web Services will create a lower barrier of entry for many budding ideas that could eventually lead to fully realized companies.

What’s not so obvious is that this step is very much in the direction of expanding Amazon’s footprint as a technology company and not just a retailer.