Fwd: bhyve no longer doing netboot/ipxe

Repost to  <virtualization@freebsd.org> too.

On Sat, 4 Jul 2026 at 16:07, Daniel Braniss <danny@cs.huji.ac.il> wrote:
>
>
>
> > On 4 Jul 2026, at 0:13, Bjoern A. Zeeb <bzeeb-lists@lists.zabbadoz.net> wrote:
> >
> > On Wed, 1 Jul 2026, Daniel Braniss wrote:
> >
> >> after spending hours with several claude/google/etc which have too much misinformation,
> >> is there a right way to do ipxe boot which still works fine when the host is 14.3 but no longer with 15.1
> >> thanks,
> >
> > See:
> >
> > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294520
> >
> > the problem is that the way bhyve firmware is being built.
> >
> > --
> > Bjoern A. Zeeb                                                     r15:7
>
> after many hours of trial and error this is now working:
> debug=“yes"
> loader="uefi"
> uefi_vars="yes"
> cpu=2
> memory=32G
> virt_random="yes"
> network0_type="virtio-net"
> network0_switch="public"
> disk0_type="virtio-blk"
> disk0_name="/dev/zvol/h/bhv-02"
> disk0_dev="custom"
> uuid="86b8741f-7764-11f1-8266-b8ca3aee713a"
> network0_mac="58:9c:fc:00:6c:88"
> graphics="yes"
> graphics_res="1024x768"
> grafics_wait="yes"
> graphics_listen="0.0.0.0:5901”
>
> and changing the filename in my dhcp i can boot diskless or local root.
> the efi partition is empty, so it’s getting the bootrom from /usr/local/share/…
>
> from the logs:
> 2026-07-04T16:54:49+03:00: restarting
> 2026-07-04T16:54:49+03:00:  [bhyve options: -c 2 -m 32G -AHPw -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd,/h/vm/bhv-02/uefi-vars.fd -U 86b8741f-7764-11f1-8266-b8ca3aee713a -u]
> 2026-07-04T16:54:49+03:00:  [bhyve devices: -s 0,hostbridge -s 31,lpc -s 0:4:0,virtio-blk,/dev/zvol/h/bhv-02 -s 0:5:0,virtio-net,tap0,mac=58:9c:fc:00:6c:88 -s 0:6:0,virtio-rnd -s 0:7:0,fbuf,tcp=0.0.0.0:5901:5900,w=1024,h=768]
> 2026-07-04T16:54:49+03:00:  [bhyve console: -l com1,/dev/nmdm-bhv-02.1A]
> 2026-07-04T16:54:49+03:00: starting bhyve (run 2)
>
> im still baffled,

Why? Is this issue not fixed?

IMO an official FreeBSD writeup on how to boot something via
netboot/ipxe would be good.

Lionel


-- 
Lionel