This guide has been written to help Linux and Cloud users to install and configure Proxmox VE 7 on Hetzner root server. Root server in Hetzner Cloud is a dedicated server which is completely isolated from one another to give you full access and control to configure the server anyway you want without affecting other users. Hetzner Online GmbH provides auctions for dedicated server hardware at a very competitive rates with a monthly payment model. Visit Hetzner Server auction page to bid on servers and save money.
Proxmox Virtual Environment (VE) is a very powerful and enterprise-grade server virtualization software using Debian Linux as its base with a modified Linux kernel. With Proxmox you can run both Virtual Machines and Containers powered by KVM and LXC technologies respectively. The Proxmox VE source code is free, released under the GNU Affero General Public License, v3 (GNU AGPL, v3).
This guide is intended for personal Labs only. We’ll do a single node installation of Proxmox VE Server on Debian 11 (Bullseye) operating system. It comes with an integrated graphical user interface (GUI) for management, there is no need to install a separate management tool. For a multi-node Proxmox VE Cluster setup, visit the official Proxmox VE High Availability to read more if interested with the solution.
In this article, we shall perform installation of Proxmox VE 7 on a Hetzner root server with the following hardware specifications.
CPU: Intel(R) Xeon(R) CPU E5-1650 v3 @ 3.50GHz (Cores 12) Memory: 256GB RAM Disk: 2 x 480GB SSD Network: 1Gbit IPV4 Addresses: 1 x IPV4 public address
When you order an hetzner root server, by default, you get a single IPv4 public IP address. If you need more public addresses, you’ll have to order separately.
Step 1 – Boot the Server in to Rescue Mode
Login to your Hetzner root server console and move Main functions > Servers > Server Label > Rescue section to boot your server in rescue mode.
From the page shown, select the Operating system, CPU Architecture, and public key or password and click on “Activate rescue system” to use activate rescue system.
After activating rescue system, the system has to be rebooted. This is done on Server > ServerName > Reset section in the console.
Step 2 – Create Root Server Configuration.
SSH to the server in rescue mode using root user and password shown during Rescue activation.
$ ssh [email protected] Welcome to the Hetzner Rescue System. This Rescue System is based on Debian 9 (stretch) with a newer kernel. You can install software as in a normal system. To install a new operating system from one of our prebuilt images, run 'installimage' and follow the instructions. More information at http://wiki.hetzner.de Rescue System up since 2021-12-03 21:01 +02:00 Hardware data: CPU1: Intel(R) Xeon(R) CPU E5-1650 v3 @ 3.50GHz (Cores 12) Memory: 257653 MB Disk /dev/sda: 480 GB (=> 447 GiB) doesn't contain a valid partition table Disk /dev/sdb: 480 GB (=> 447 GiB) doesn't contain a valid partition table Total capacity 894 GiB with 2 Disks Network data: eth0 LINK: yes MAC: b4:2e:99:47:fa:5c IP: xxxxxxxxxxxxxxxxxx IPv6: xxxxxxxxxxxxxxxxxx Intel(R) Gigabit Ethernet Network Driver [email protected] ~ #
As seen from the output, the server we’re using has two disks @480GB. We’ll configure them in non-redundant RAID 0 configuration.
Disk /dev/sda: 480 GB (=> 447 GiB) Disk /dev/sdb: 480 GB (=> 447 GiB)
Next we create our Hetzner server installer configuration file. We’ll name it debian-install-config.txt
This is the data populated that will be used by the installimage to install Debian 11 (Bullseye) operating system from pre-built image.
DRIVE1 /dev/sda DRIVE2 /dev/sdb SWRAID 1 SWRAIDLEVEL 0 # Use 1 for Raid 1 BOOTLOADER grub HOSTNAME proxmox7.example.com # Set correct hostname PART /boot ext4 512M PART lvm vg0 all LV vg0 root / ext4 50G LV vg0 swap swap swap 8G LV vg0 var /var ext4 300G # List images with ls /root/.oldroot/nfs/install/../images IMAGE /root/images/Debian-1101-bullseye-amd64-base.tar.gz
Configure your own partitioning scheme depending on storage hardware and usable space.
Step 3 – Install Debian 11 (Bullseye) on Hetzner root server
With correct installer configurations, initiate the installation process of Debian Linux on Hetzner root server by running the following command:
# installimage -a -c install-config.txt
Installation process will start immediately after command execution:
Found AUTOSETUP file '/autosetup' Running unattended installimage installation ... DRIVE1 /dev/sda DRIVE2 /dev/sdb SWRAID 1 SWRAIDLEVEL 0 # Use 1 for Raid 1 BOOTLOADER grub HOSTNAME myrootserver.computingpost.com PART /boot ext3 512M PART lvm vg0 all LV vg0 root / ext4 50G LV vg0 swap swap swap 8G LV vg0 var /var ext4 300G IMAGE /root/.oldroot/nfs/install/../images/Debian-1101-bullseye-amd64-base.tar.gz WARNING: Starting installation in 20 seconds ... Press X to continue immediately ... Installation will DELETE ALL DATA ON DISK(s)! Press CTRL-C to abort now!
The script will do disk preparation and Debian server installation for you. Just sit and relax as magic happens!
Hetzner Online GmbH - installimage Your server will be installed now, this will take some minutes You can abort at any time with CTRL+C ... : Reading configuration done : Loading image file variables done : Loading debian specific functions done 1/17 : Deleting partitions done 2/17 : Test partition size done 3/17 : Creating partitions and /etc/fstab done 4/17 : Creating software RAID level 0 done 5/17 : Creating LVM volumes done 6/17 : Formatting partitions : formatting /dev/md/0 with ext4 done : formatting /dev/vg0/root with ext4 done : formatting /dev/vg0/swap with swap done : formatting /dev/vg0/var with ext4 done 7/17 : Mounting partitions done 8/17 : Sync time via ntp done : Importing public key for image validation done 9/17 : Validating image before starting extraction done 10/17 : Extracting image (local) done 11/17 : Setting up network config done 12/17 : Executing additional commands : Setting hostname done : Generating new SSH keys done : Generating mdadm config done : Generating ramdisk done : Generating ntp config done 13/17 : Setting up miscellaneous files done 14/17 : Configuring authentication : Fetching SSH keys done : Disabling root password done : Disabling SSH root login without password done : Copying SSH keys done 15/17 : Installing bootloader grub done 16/17 : Running some debian specific functions done 17/17 : Clearing log files done INSTALLATION COMPLETE You can now reboot and log in to your new system with the same credentials that you used to log into the rescue system.
When installation is done, reboot to Debian 11 (Bullseye) environment.
# shutdown -r now
SSH to the server as root user with password or SSH Public key if set.
$ ssh [email protected] Linux proxmox7.example.com 5.13.19-2-pve #1 SMP PVE 5.13.19-4 (Mon, 29 Nov 2021 12:10:09 +0100) x86_64 The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law.
We can review our current system partitions on the server. If you used LVM and still have space in VG, you can adjust Logical Volumes capacity.
# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 447.1G 0 disk ├─sda1 8:1 0 512M 0 part │ └─md0 9:0 0 511M 0 raid1 /boot └─sda2 8:2 0 446.6G 0 part └─md1 9:1 0 893G 0 raid0 ├─vg0-root 253:0 0 50G 0 lvm / ├─vg0-swap 253:1 0 8G 0 lvm [SWAP] └─vg0-var 253:2 0 300G 0 lvm /var sdb 8:16 0 447.1G 0 disk ├─sdb1 8:17 0 512M 0 part │ └─md0 9:0 0 511M 0 raid1 /boot └─sdb2 8:18 0 446.6G 0 part └─md1 9:1 0 893G 0 raid0 ├─vg0-root 253:0 0 50G 0 lvm / ├─vg0-swap 253:1 0 8G 0 lvm [SWAP] └─vg0-var 253:2 0 300G 0 lvm /var # pvs PV VG Fmt Attr PSize PFree /dev/md1 vg0 lvm2 a-- 893.00g 535.00g # vgs VG #PV #LV #SN Attr VSize VFree vg0 1 3 0 wz--n- 893.00g 535.00g # lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert root vg0 -wi-ao---- 50.00g swap vg0 -wi-ao---- 8.00g var vg0 -wi-ao---- 300.00g
See below example which adds extra 50GB to /dev/vg0/var Logical Volume
# lvextend -r -L +50G /dev/vg0/vg0
Confirm Debian successful installation by querying OS release info:
[email protected] ~ # cat /etc/os-release PRETTY_NAME="Debian GNU/Linux 11 (bullseye)" NAME="Debian GNU/Linux" VERSION_ID="11" VERSION="11 (bullseye)" VERSION_CODENAME=bullseye ID=debian HOME_URL="https://www.debian.org/" SUPPORT_URL="https://www.debian.org/support" BUG_REPORT_URL="https://bugs.debian.org/"
Update and upgrade your Debian 11 (Bullseye) system
apt update apt -y full-upgrade apt install wget vim sudo bash-completion [ -f /var/run/reboot-required ] && reboot -f
Step 4 – Install Proxmox VE 7 on Debian 11 (Bullseye)
Now that our Cloud server is ready, we can dive to the actual installation of Proxmox VE. Refer to our guide below to proceed with the setup.
To change Proxmox VE UI theme see guide below: