[Discuss] Virt-Manager

[gaf.linux at gmail.com (Jerry Feldman)]

KVM should be installed by default, as it is part of the kernel.  Take a
look at qemu. I'm wondering if you are running under emulation.

On Wed, Oct 20, 2021 at 3:17 PM Edward <epp at sillydog.org> wrote:

> Virt-manager created it as a .qcrow2 by default, did not know what that
> was. There was also an indication that 'the KVM package' was not
> installed and as a result, it would run slowly. I would have expected
> the installation of virt-manager to also pull in all required
> dependencies. Debian does not provide a package named 'kvm' and
> searching using that string under Description & Name with Synaptic,
> found no such packages that looked like it would install KVM.
>
> I believe the file system it is using, is ext4.
>
>
> On 10/20/21 3:00 PM, markw at mohawksoft.com wrote:
> > I use KVM all the time and manage it with virt-manager.
> >
> > (1) Make sure that network and disk use VirtIO para-virtual driver, do
> not
> > emulate physical devices.
> >
> > (2) Don't use qcow2, its really slow. Pre-allocate your boot drive:
> >
> > touch myboot.raw
> > truncate -s SIZE myboot.raw
> >
> > The above will let you define a large thin-provisioned disk.
> >
> > If you have LVM or ZFS you can create a logical volume or zvol, but I
> > think the thin provisioned "sparse" file may be faster because of the
> > double caching.
> >
> >> On 10/18/21 9:20 PM, Edward wrote:
> >>> I missed a setting, found it afterwards, it defaults to Virtual Network
> >>> (NAT) and the box to start it automatically was initially not checked.
> >>>
> >>> It's working now.
> >>>
> >> And it (take your pick):
> >>
> >>    * is slow as molasses
> >>    * runs at a snail's pace
> >>
> >>
> >> Not even worth using. Gnome Boxes on Fedora 33 ran far better and faster
> >> than Virt Manager does on Debian.
>
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Jerry Feldman <gaf.linux at gmail.com>
Boston Linux and Unix
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