libvirt users - May 2017 - How to set guest console size in libvirt configuration options?

Hello, everybody

I use virsh to run my VM and QEMU as a hypervisor. 
When I connect to it, it shows me a console with a some predefined size.
I know that I am able to update grub configuration to pass the correct
size as a kernel command line option or use stty something like:

stty rows 62 cols 213

and it's resizes correctly.

But is there any way to define the console's size  outside the guest, in
the VM's configuration?





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Thanks in advance,
Roman Storozhenko

On Wed, May 24, 2017 at 04:40:33PM +0300, Roman Storozhenko
wrote:
> Hello, everybody
> 
> I use virsh to run my VM and QEMU as a hypervisor. 
> When I connect to it, it shows me a console with a some predefined size.
> I know that I am able to update grub configuration to pass the correct
> size as a kernel command line option or use stty something like:
> 
> stty rows 62 cols 213
> 
> and it's resizes correctly.
> 
> But is there any way to define the console's size  outside the guest,
in
> the VM's configuration?
Unfortunately that's not possible, nor can we notify the guest of
resizes on the client end.

Honestly the 'virsh console' is best used only in emergencies when the
VM doesn't boot. Any other time it is better to just use SSH, which
correctly deals with resizing consoles.

Regards,
Daniel
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