Resolving Proxmox VE - Kill VM - Shutdown Bug

kill_kvm.sh

#!/bin/bash
############################################################################################
# MIT License
#
# Copyright (c) 2024 Caleb Rhody
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
############################################################################################
# Resolving Proxmox VE Shutdown Bug
# If you're encountering issues with shutting down a Proxmox Virtual Machine (VM) 
# due to the "QEMU Guest Agent" being enabled, this script provides a quick solution.
# The problem is documented in [this Proxmox forum post](https://forum.proxmox.com/threads/stop-vm-impossible.101736) 
# and [bug report](https://bugzilla.proxmox.com/show_bug.cgi?id=4474).
#
# Special Thanks to "oguz - Proxmox Retired Staff" for the solution provided in 
# [this forum post](https://forum.proxmox.com/threads/stop-vm-impossible.101736/post-438745).
#
# Usage:
#   1. Download the script: [kill_kvm.sh] (https://gist.github.com/Rhodiym)
#   2. Make the script executable: `chmod +x kill_kvm.sh`
#   3. Run the script with the VMID you want to shut down: `./kill_kvm.sh <VMID>`
#
# Example:
#   ./kill_kvm.sh 106
#
# This script finds and kills the KVM process associated with the specified VMID, 
# addressing the shutdown bug caused by enabling "QEMU Guest Agent" for your VM.
#
# [PATCH] (https://lists.proxmox.com/pipermail/pve-devel/2023-January/055587.html)
############################################################################################

# Check if VMID is provided as an argument
if [ -z "$1" ]; then
    echo "Usage: $0 <VMID>"
    exit 1
fi

VMID=$1

# Find the process ID (PID) of the KVM process for the specified VMID
KVM_PID=$(ps aux | grep "/usr/bin/kvm.*-id $VMID" | grep -v grep | awk '{print $2}')

# Check if a process ID was found
if [ -z "$KVM_PID" ]; then
    echo "No KVM process found for VMID $VMID"
    exit 1
fi

# Kill the KVM process using SIGKILL (kill -9)
echo "Killing KVM process (PID: $KVM_PID) for VMID $VMID"
kill -9 "$KVM_PID"

echo "Process killed successfully"