On 3/29/25 1:19 AM, ToddAndMargo via users wrote:
On 3/28/25 2:41 PM, ToddAndMargo via users wrote:
Hi All,
What happens to a running qemu-kvm virtual machine
when the host shuts down or reboots?
Does the hypervisor issue a shutdown to the VM?
Or freeze and save the vm? Or just cut the vm's
leg off?
Many thanks,
-T
Oh holy Poop!
The default from, the XML file is
<on_poweroff>destroy</on_poweroff>
And virt-manager won't let your change it.
Referencing
https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/
html/virtualization_administration_guide/sect-libvirt-dom-xml-event-
config#sect-libvirt-dom-xml-event-config
The options are:
destroy
restart
preserve (which is really destroy but keep a record)
rename-restart
Our friendly AI over on search.brave.com says I have
the option of
<on_shutdown>shutdown</on_shutdown>
But it is not the case.
So hopefully Sam rommendation will work.
-T
Sam's and Todd's suggestions worked.
I started a virtual machine that has autologin configured
(lxdm), logged out to the lxdm greeter, then shutdown
the host.
After reboot eh host, the VM had autologged it, meaning
it had started from scratch. Had it been a suspend,
I would have been at the greeter.
Thank you!
--
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