Re: Upgrading the host
On 2/17/21 2:45 AM, Marcin Struzak wrote:
On 2/16/2021 12:51 AM, Michal Privoznik wrote:
> On 2/12/21 2:10 AM, Marcin Struzak wrote:
> [...]
>
>> 3. Anything else I should worry about or prepare ahead?
>
> Not strictly related to libvirt, but machine types might be problem. I
> guess qemu will be upgraded too and in general the machine type you're
> using for a domain might not be available in upgraded qemu.
Correct, it looks like qemu will go from 1.6.2 to 4.2.1...
>
> You can view supported machine types by running 'virsh capabilities'
> with upgraded qemu.
machine is pc-i440fx-1.6 in all my domains. Is there a simple way to
figure out if that's supported in libvirt 6.1.0 (without installing it)?
It's not libvirt who has say in machine types. Libvirt treats machine
type as an opaque string. But I can see that pc-i440fx-1.6 is still
available even with the latest QEMU release:
# /usr/bin/qemu-system-x86_64 -version
QEMU emulator version 5.2.0
# virsh capabilities | grep pc-i440fx-1.6
<machine maxCpus='255'>pc-i440fx-1.6</machine>
<machine maxCpus='255'>pc-i440fx-1.6</machine>
So you are safe on that front.
Michal