Install Proxmox for PfSense

System Specifications

Step 1 – Download Proxmox VE ISO
Step 2 – Download Rufus
Step 3 – Install ISO onto empty USB stick
Step 4 – Start the Proxmox installer (UEFI mode)
Step 5 – On the “Target Hard Disk” screen:
- Select your drive
- Then click the button labeled “Options” at the bottom-right corner of the screen
Step 6 – In the Options Window:
- Filesystem: Choose ext4
- hdsize: Default is fine unless you want to shrink it
- swapsize: Set this to 0 to disable disk swap (note: we will be enabling zram swap later).
- maxroot: Leave blank unless you want to cap /
- minfree: Optional (for snapshots or alignment)
- maxvz: Leave blank (it will use remaining space)
Step 7 – On the Management Network Configuration screen:
- Management Interface: Choose the first port being used for your Linux Bridge (LAN)
- Hostname (FQDN): Example pve.home.arpa
- IP Address (CIDR): IP Address
- Gateway: Gateway IP address
- DNS Server: Usually the same as the Gateway

lvextend -l +100%FREE /dev/pve/root
resize2fs /dev/pve/root
nano /etc/fstab

Update root line to:

/dev/pve/root / ext4 discard,errors=remount-ro 0 1

systemctl daemon-reload
mount -o remount /

nano /etc/pve/storage.cfg

lvmthin: local-lvm
    thinpool data
    vgname pve
    content rootdir,images
    discard 1

systemctl enable fstrim.timer
systemctl restart fstrim.timer

apt update
apt install zram-tools
nano /etc/default/zramswap

Set:

ALGO=lz4
PERCENT=50

systemctl enable zramswap
systemctl restart zramswap
swapon --show

NAME       TYPE      SIZE USED PRIO
/dev/zram0 partition 7.7G   0B  100

bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/tools/pve/post-pve-install.sh)"