I have several Linux vm's running on a Hyper-v Host on a Server2019. The Linux vm's, are mostly Debian 10.
When I shutdown the Hyper-v host it does it so quick that I'm not really sure if the linux vm's are shutdown properly. However, on the Hyper-v server I have enabled the so called "integration services" together with the necessary settings to shutdown for each Linux vm.
After some searching I have found some information about LIS (Linux Integration Services) and other information about a package called "hyperv-daemons" which are both to be installed on Linux vm's if running on Hyper-v.
I read several articles and googled the web but I can not find any clear information weather LIS or hyperv-daemon is by default enabled and kind of plug&play ready on newer (>=Debian10) Versions or if something needs to be enabled and configured.
How can I check if I have the necessary packages and configs on the Debian10 vm's in order for Hyper-v to communicate with the Linux vm's and shutdown properly.
How can I test if my Linux vm's are shutdown properly when the Hyper-v host shutsdown/reboots?
Best Answer
In recent Linux distros (Debian Linux 9/10, Centos 7/8) you don't need to install LIS by MS any longer. The kernel has support for MS HyperV devices.
In Debian you just need to install hyperv-daemons.
apt install hyperv-daemonsPerhaps they are already installed; just type the command and you'll see.
A quick way to check if a Linux machine did a proper shutdown is file system check on boot. If properly shut, you see file system clean while booting. Else there will be messages for inodes, etc.