Hyper-V: Black screen on boot – or stuck on PXE over IPv4, or doesn’t boot from ISO.

You may also see the message: No OS was loaded. Your virtual machine may be configured incorrectly. Exit and reconfigure your VM or click to retry the current boot sequence again OR Virtual machine boot summary. SCSI DVD (0,1) the boot loader failed. Network adapter (00155DFC6907) a boot image was not found. SCSI disk (0,0) […]

Hyper-V: Dynamic Memory

Whilst any good virtual infrastructure manager would want to make sure that resources are shared nicely between virtual machines, I have experienced that Internet Information Services and some applications prematurely believe they are running out of memory, and start to shed objects from their cache. If you see w3wp.exe or other components of your application […]

Hyper-V: Some applications freeze

If you are experiencing that some applications just don’t like Hyper-V or VMWare, it maybe because you’re only using one core in your processor settings. Try increasing the number of processors to 2. During testing, our team found that some multithreaded operations when using an out-of-process COM server to wrap unstable components (our example was […]

Hyper-V: An error occurred while attempting to checkpoint the selected virtual machines. 

Sometimes you may encounter the following error, quite randomly. Checkpoint operation failed. Cannot create the checkpoint. Checkpoint operation for ‘your vm’ failed. ‘your vm’ cannot create the storage required for the checkpoint using disk… As below: There may be a few solutions to this issue, including restarting the Hyper-V service, or making sure that you […]

Middleton’s Spaghetti Bolognese

This recipe is a combination of a Jamie Oliver and The Good Food Guide recipe. It’s great to freeze. Each spaghetti has it’s own instructions, but I think fresh is best (way better), with salt and olive oil added to the pan. If you cook too much spaghetti, don’t feel like you should serve it all, […]

TapPhrase – update

I thought I might just write a little bit about my journey so far with trying to get TapPhrase into Unity to run as a Facebook WebGL game, rather than GameRoom game. There’s so much I could write – but some major points here which I fell foul of (because of the WebGL decision): To […]

Hyper-V: The application encountered an error while attempting to change the state of ‘your vm’. The Operation failed because the file was not found.

If you encounter this error, try going to Settings->Media-> DVD Drive->Eject… It could be that the .iso file you’ve attached no longer exists. If, for some reason you are unable to change the setting for the ISO file, you could pick any valid ISO file and rename it to match (if you can read the […]