New Proxmox VM with Home Assistant

This script will create a new Proxmox VM with the latest version of Home Assistant. To create a new VM, run the following in a SSH session or the console from Proxmox interface

bash -c "$(wget -qLO - https://git.sfs.ddnss.org/Erik/proxmox_hassos_install/raw/branch/master/install.sh)"

After script completes, click on the new VM (the script will tell you the ID), click on the Hardware tab for the VM and change the Memory and Processors settings to what you desire. The Hard Disk can be expanded by clicking on it, then click on the Resize disk button above (Note: additional steps must be taken for storage to take effect in the VM after the first boot). The network MAC address can be changed by selecting Network Device and clicking Edit above. Once all changes have been made, click Start above.

Root Prompt

To get to the root prompt

Open the console after the VM has been started
When the messages slow down press the Enter key a couple of times until you see the following


Welcome to Home Assistant
homeassistant login:

Login using root, no password is requested
When you see the hassio > prompt, type login
You should now see a # prompt.

Add a serial port

By adding a serial port, you are able to use a different interface to interact with the VM. When you click on the down arrow next to Console you will be able to use xterm.js which enables you to Right-Click and get access to Copy and Paste functions. If the serial port was already added by the install script, no further actions are required to enable the functionality.

Click on the VM in the list of containers at the left side panel
Click Hardware tab located beside the list of containers
Click Add located beside Summary tab, then click Serial Port
Serial Port should be set to 0 in the input box, then click Add
Start the VM, if it isn't already
At the root prompt type sed -i 's/$/ console=ttyS0/' /mnt/boot/cmdline.txt
A Shutdown and Start is required for the changes to take effect

Show Current IP Address

To get the current IP address assigned to the VM from the Proxmox interface

Click on the VM in the list of containers at the left side panel
Click Summary tab located beside the list of containers
Click More near IPs in the top left section
You can find the assigned IP addresses on the line with the name similar to enp0s18

To get the current IP address assigned to the VM from the command line

At the root prompt type nmcli -g ip4.address d sh $(nmcli -g device c)
The response will be the IP address with subnet mask or nothing

Note: If DHCP is configured and nothing is shown, check DHCP server and VM network settings

Configure Network for Static IP Address

To set a static IP address, use the following as an example

At the root prompt type nmcli c mod $(nmcli -g uuid c) ipv4.method manual ipv4.addresses "192.168.20.170/24" ipv4.gateway "192.168.20.1" ipv4.dns "8.8.8.8,8.8.4.4"
At the root prompt type nmcli c up $(nmcli -g uuid c)

Configure Network for DHCP

To remove all static IP addresses and enable DHCP

At the root prompt type nmcli c mod $(nmcli -g uuid c) ipv4.method auto ipv4.addresses "" ipv4.gateway "" ipv4.dns ""
At the root prompt type nmcli c up $(nmcli -g uuid c)

Default Interface Name

To get the default interface name

At the root prompt type nmcli -g device c
The response with be the interface name

Change Hostname

To change the HassOS VM hostname

At the root prompt type hostnamectl set-hostname your-new-hostname
You can verify the change by logging out with exit, the last line printed will be your-new-hostname login:

Resize Disk

To resize the disk after the first boot

At the root prompt type df -h /dev/sda8 and note the Size
Shutdown the VM
Resize the disk to the desired size
At the root prompt type sgdisk -e /dev/sda
At the root prompt type reboot
Verify resize was successful by typing df -h /dev/sda8 at the root prompt

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