[virt-tools-list] virt-install options, are important?

[Cole Robinson]

On 07/18/2012 10:33 AM, Periko Support wrote:
> Hi.
> 
>  This is related to hvm.
> 
>  I have read virt-install man page, I had read that we have a lot of
> flags, we can be very specific on how we build a hvm for win 2k3, 3k3,
> etc.
> 
>  Now, is important to be very specific on what we want to build or
> virt-install is smart enough to detect our vm OS we are building?
> 
>  Running this:
> 
> virt-install -n win8-1 -r 2048 -f /opt/win8/win8-disk.img -b eth0
> --vnc --vnclisten=192.168.50.2 -v -c /opt/win8/win8.iso
> 
> or
> 
> virt-install -n win8-2 -r 2048 --hvm --vcpus=2 --cpuset=2-3 --disk
> path=/opt/win8-2/win8-disk.img --os-type=windows --os-variant=win2k8
> -b bridge0 --noautoconsole --vnc --vnclisten=192.168.50.107 -v --cdrom
> /dev/dvdrw
> 
> is important?
> 
> Exist a way to know how we build our vm? or is not important?
> 
> Does the options we give to virt-install affect our vm daily
> operation(Performance)?
> 

Yes, you always want to specify --os-variant if there is an appropriate value
(--os-type isn't really required). It is used for setting up the most
performant defaults. We do some detection if you are installing with
--location, but not --cdrom. libosinfo provides that and we should hopefully
be switching over soon.

- Cole