wiki/howto/VMs-procedures/freebsd.md

• Do not enable qemu-agent, with qemu-agent enabled, it tries to send the shutdown signal through it, without it, it does it through acpi. Right now, there is no clear support for qemu-agent qemu-guest-agent works fine on FreeBSD 13
• Hot plugged virtio interfaces are not seen, reboot
• Network configuration cannot be reload, you should restart:
  • restart everything service netif restart
  • restart specific iface service netif restart vtnet0
• Do not change default settings of /root/.cshrc or its shell, if you want bash, install bash and use it when needed
  • to login directly with bash, use ssh -t yourHost bash
• From FreeBSD side, to enable serial connection add in file /boot/load.conf line console="comconsole"
• Boot by default takes 10 seconds in initial boot menu, to modify it go to file /boot/load.conf and add line autoboot_delay="1"

mini rosetta code linux-freebsd (more)

description	linux	freebsd
show main routing table for IPv4	ip r	netstat -4rW
show main routing table for IPv6	ip -6 r	netstat -6rW
show application of routing table for targetHost	ip route get targetHost	route show targetHost

resource policy

• rootfs 10 GB
• 1 core CPU
• 1 GB RAM
  • To use ZFS, at least 1 GB of memory is recommended (for all architectures) but more is helpful as ZFS needs lots of memory. Depending on your workload, it may be possible to use ZFS on systems with less memory, but it requires careful tuning to avoid panics from memory exhaustion in the kernel https://wiki.freebsd.org/ZFSTuningGuide

things we put on the freebsd 13 template

# src https://www.freshports.org/net/cloud-init/
pkg install py38-cloud-init-21.4

pkg install tmux
pkg install vim

# src https://www.freshports.org/emulators/qemu-guest-agent
pkg install qemu-guest-agent

• cloud-init activated complains (hangs during boot, or hangs for some time) if cloudinit drive is not available. With direct access to the host and Ctrl+c you can skip it
• qemu-guest-agent and py38-cloud-init-21.4 throw messages after the installation with the steps to activate it, just follow them

reduce autoboot time from 10 seconds to 2 -> src https://www.nesono.com/content/reduce-freebsd-boot-time

Add on file /boot/loader.conf a line with autoboot_delay="2"

other resources and references

• [Guifilab] [CAT] En-ruta amb FreeBSD https://www.youtube.com/watch?v=ilcjyybGIK8
  • guides on installing Freebsd 13