On Tue, 19 Jul 2011 22:21:39 -0400
Allen Weiner <[email protected]> wrote:

> Say I have a version of Fedora with a custom kernel that I wish to
> test. Is it possible to install this as a KVM guest virtual machine?
> If so, how?
> 
> I've found online lots of examples of how to install a standard OS as
> a KVM guest virtual machine. Installation requires a CD, DVD, or an
> ISO image on HDD. I haven't found any mention of how to install a
> custom OS. The closest possibility I've found is the "virt-install"
> command. According to the man-page, the "location" parameter
> specifies an "installable distribution image". I interpret
> "installable distribution image" to mean an ISO image.
> 

I've used the virt-install command with the --import option.  This will
create a libvirt configuration for an already installed OS.  (No OS
installer is necessary in this case.)

I use this when I install a new release of Fedora.  I have a
pre-existing Windows image which is imported into libvirt.  Note that
this Windows image was installed in KVM from an earlier Fedora release.

> I'm specifically looking to do this on KVM, not on VirtualBox or
> VMWare.
> 
> I would expect the kernel developers do this all the time, and I'm
> surprised I haven't found anything.
> 


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