Category: Virtual Machines & Environments

Portable VirtualBox on Windows
article #1003, updated 160 days ago

VirtualBox, portable, on Windows. Amazing.

http://www.vbox.me/

Categories:   Virtual Machines & Environments   

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Virtualizing XP to KVM
article #377, updated 1938 days ago

Here’s a method which uses the VMware Converter.

http://moblog.bradleyit.com/2010/07/virtualizing-windows-xp-to-kvm-on.html

Categories:   Virtual Machines & Environments   

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Cloning Hyper-V Virtual Machines
article #374, updated 1942 days ago

A great article is here:

http://www.virtualizationadmin.com/articles-tutorials/general-virtualization-articles/cloning-hyper-v-virtual-machines-right-way-part1.html

Categories:   Virtual Machines & Environments   

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Hyper-V virtuals on QEMU/KVM
article #373, updated 1945 days ago

The following article is most interesting:

http://blog.allanglesit.com/2011/03/linux-kvm-migrating-hyper-v-vhd-images-to-kvm/

The file format used by Hyper-V in its VHD files, is actually exactly the same as the VPC format used in Virtual PC. And KVM and QEMU do know how to read VPC. So you can do it directly, without conversion; just import an existing disk image into a new KVM virtual and you are there.

But if you want to convert, you can use a utility called “kvm-img”. In some references and some systems, it’s called “qemu-img”. The idea is, that a command line much like this:

qemu-img convert -f vpc -O raw hyper-v-disk-image.vhd kvm-raw-disk.img

will convert your Hyper-V virtual disk image to the “raw” type image which is first on the list for KVM and QEMU.

Categories:   Virtual Machines & Environments   

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Linux KVM Drivers in Windows
article #369, updated 1958 days ago

There are disk and network drivers:

http://www.linux-kvm.org/page/WindowsGuestDrivers/Download_Drivers

And some excellent articles on making them work:

http://www.linux-kvm.com/content/preview-redhat-54-windows-virtio-drivers-part-1

http://www.linux-kvm.com/content/redhat-54-windows-virtio-drivers-part-2-block-drivers

Categories:   Virtual Machines & Environments   

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Updating VirtualBox Guest Additions in Windows
article #308, updated 2148 days ago

Some very interesting methods here:

http://www.virtualbox.org/manual/ch04.html#additions-windows

Looks much better than overwriting the MSI, which has now failed on me twice.

Categories:   Virtual Machines & Environments   

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Advanced Memory Management, XP/2003/Vista/7, & virtuals
article #295, updated 2166 days ago

Start reading here:

http://msdn.microsoft.com/en-us/library/ff556232.aspx

and try /3GB and/or /PAE (search for it in the above) if you’re on XP or 2003. If you’re on Vista or 7, go here:

http://msdn.microsoft.com/en-us/library/ff542202.aspx

and try PAE and very possibly IncreaseUserVA.

I have found very good performance of 32-bit Windows as virtual guest, in a VirtualBox environment hosted on 32-bit Fedora 14 Linux, using the PAE kernel on Linux and /PAE (or BCDEdit /SET PAE) in the virtual. If you use PAE in the kernel, do make sure to use PAE in the virtual, or there will be an extra and expensive memory processing step required at all times. This is to be done even if the virtual is configured with smallish RAM, e.g., 1G.

Categories:   Memory Management   Virtual Machines & Environments

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Create a VHD (virtual hard drive) from a running server
article #242, updated 2294 days ago

The following:

http://technet.microsoft.com/en-us/sysinternals/ee656415

creates one or more Microsoft VHDs, suitable for use in Hyper-V and Virtual PC, from the drive(s) and/or RAID volume(s) of a running server or workstation.  Server 2003 / XP and up.

Categories:   Backup   Virtual Machines & Environments