pfSense 2.7.2 Unattended install for KVM

vm_install.sh

# 0. Requirements
apt install -y growisofs genisoimage

# 1. Extract installer resources
mkdir iso
cp /data/ISOs/pfSense-CE-2.7.2-RELEASE-amd64.iso pfsense-2.7.2.unattended.iso
mount pfsense-2.7.2.unattended.iso iso
cp iso/etc/rc.local .
cp iso/usr/libexec/bsdinstall/auto .
umount iso

# 2. Modify installer files
# 2.1. Copyright and distribution notice
sed -ir '/^\texec 3>&1/,+6d' rc.local

# 2.2. Install mode"
sed -ir 's/IMODE=.*/IMODE=Install/; /IMODE=Install/{n;N;N;N;N;d}; /^exec 3>&1/d; s/bsddialog .* && reboot/reboot/' rc.local
# DEBUG
#sed -ir 's|bsdinstall|/bin/sh|' rc.local

# 2.3. Paritionning"
# 2.3.1 Auto select Auto (UFS)
sed -ir 's/PARTMODE=.*/PARTMODE="Auto (UFS)"/; /PARTMODE="Auto (UFS)"/{n;N;N;N;N;N;d}' auto

# 2.3.2 Add PARTITIONS definition
sed -ir 's|^exec 3>&1|export PARTITIONS="DEFAULT"|; /export PARTITIONS=.*/a export nonInteractive="YES"' auto

# 2.3.3.1 Make /usr/libexec/bsdinstall/auto unattended
sed -ir 's|bsdinstall autopart|bsdinstall scriptedpart "$PARTITIONS"|; /bsdinstall fix_fstab.*/d' auto

# 2.3.3.2 Fix bugged scriptedpart writting empty fstab
# https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273723 bsdinstall scripted does not generate /tmp/bsdinstall-tmp-fstab
if [[ ! -f FreeBSD-14.1-RELEASE-amd64-bootonly.iso ]]; then
  wget https://download.freebsd.org/ftp/releases/ISO-IMAGES/14.1/FreeBSD-14.1-RELEASE-amd64-bootonly.iso
fi
mount FreeBSD-14.1-RELEASE-amd64-bootonly.iso iso
cp iso/usr/libexec/bsdinstall/scriptedpart .
umount iso

# 2.4. Update installer files
growisofs -M pfsense-2.7.2.unattended.iso -d -l -r -V "PFSENSE" -graft-points /usr/libexec/bsdinstall/scriptedpart=scriptedpart
growisofs -M pfsense-2.7.2.unattended.iso -d -l -r -V "PFSENSE" -graft-points /usr/libexec/bsdinstall/auto=auto
growisofs -M pfsense-2.7.2.unattended.iso -d -l -r -V "PFSENSE" -graft-points /etc/rc.local=rc.local

cp pfsense-2.7.2.unattended.iso /data/ISOs/
chmod ugo+r /data/ISOs/pfsense-2.7.2.unattended.iso

# 3. Create VM
virt-install \
 --connect=qemu:///system \
 --name=pfsense \
 --ram=1024 \
 --vcpus=2 \
 --disk size=20,path=/var/lib/libvirt/images/pfsense.qcow2,bus=virtio,cache=none \
 --cdrom /data/ISOs/pfsense-2.7.2.unattended.iso \
 --os-variant freebsd13.1 \
 --virt-type=kvm \
 --controller usb,model=qemu-xhci \
 --graphics vnc,listen=127.0.0.1 \
 --graphics spice,listen=127.0.0.1 \
 --noautoconsole  \
 --network bridge=virbr0,model=virtio \
 --network bridge=virbr1,model=virtio