Come along with TechHeart this week as we create a Proxmox Quorum Node with a Raspberry Pi 4. This allows our 2 node Proxmox cluster to always have a quorum node even if one of the main servers has issues…
Below you’ll find a command list of everything we had to do, along with other notes:
Raspberry Pi Proxmox Quorum server/node:
Use Pi Imager to burn RPiOS Lite 64bit w/ hostname=pve3, user=techheart,
password SSH ON.
apt update / upgrade
apt install vim (optional)
Turn off SSH password – add SSH keys
apt install curl
set static IP – using nmtui, edit connection;
[command in above link for ip r | grep default]
10.0.0.xxx/24
10.0.0.1
nameservers from /etc/resolv.conf…
edit /etc/hosts, change pve3[hostname] line to IP address 10.0.0.xxx
sudo passwd root
Add Proxmox Ports Repository;
add GPG key –
curl -L | sudo tee /usr/share/keyrings/pveport.gpg [angled bracket] /dev/null
add the repository itself [debian bookworm current correct one] –
echo “deb [arch=arm64 signed-by=/usr/share/keyrings/pveport.gpg] bookworm port” | sudo tee /etc/apt/sources.list.d/pveport.list
make sure repo is working –
sudo apt update
IF:
Get:5 bookworm InRelease [5,201 B]
Get:6 bookworm/port arm64 Packages [722 kB]
No errors = OK
Now we can begin Proxmox installation;
Proxmox uses ifupdown2 to handle the network, install it –
sudo apt install ifupdown2
Install Proxmox –
sudo apt install proxmox-ve postfix open-iscsi pve-edk2-firmware-aarch64
During install, you’ll be asked to configure Postfix. Move arrow to Select,
press enter. Select the Local only option. Press enter to select hostname [pve3]
During install you may be asked to select Y/N to accept package maintainers
pveport.list config file; select N.
find local IP address;
hostname -I
Then navigate to webGUI using:
Run Proxmox Helper Scripts, PVE Post Install Script IN the webGUI;
bash -c “$(wget -qLO –
We won’t add any storage, or anything, and will inherit shared storages from our
Proxmox Cluster…
Now, on your OTHER clustered Proxmox machines – backup /etc/pve;
ssh paulie420@10.0.0.252 / 101
cd ~
mkdir some_backup_dir
sudo cp -r /etc/pve ~/some_backup_dir
Then we can add the RasPi Proxmox Proxmox server as our quorum Proxmox;
Navigate to your main Proxmox cluster webGUI
Click on Datacenter
Click on Cluster Tab
Select Join Information, copy entire ‘Join Information’ to clipboard.
Navigate to RasPi Proxmox Quorum server webGUI
Click on Datacenter
Click on Cluster Tab
Select Join Cluster, paste entire ‘Join Information’ – new fields will open up
Enter the peer address’s root password
Click ‘Join [CLUSTER_NAME]’
… ON your Proxmox Quorum server IP, the Join Cluster command might hang while
‘Request addition of this node’ – but if you navigate to MAIN Proxmox cluster
you should see ‘pve3’ with a green checkmark – once the ‘Join Cluster’ commands
status = OK, you can navigate to RasPi Proxmox Quorum webGUI, reload and you’ll
be asked to allow advanced again and it will show Join Cluster = OK and the
entire cluster.
You now have a RasPi Proxmox Quorum server up and running. It should always be
a quorum node in case one other node goes down; this makes sure VMs will always
boot and run even if one of your main Proxmox nodes has a failure.
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