Interesting.. I don't know anything about what's possible on
Chromebook. I think it's slightly odd that bridge is disabled, but
perhaps you could use plain forwarding and NAT instead, with iptables,
rather than rebuilding the kernel?

If qemu uses a tap, say tap0, then you simply enable forwarding in the
kernel (sysctl net.ipv4.ip_forward=1), and add an iptables nat rule
(iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE) .. that rule
assumes your outbound interface is eth0; replace that as applicable.

With a qemu tap you can't use dhcp in the client but will need to set
address statically. You also need to assigne an IP address at the host
end for the tap, which the client should nominate as gateway. E.g. you
could use 10.0.2.1/24 for the tap on the host, and 10.0.2.2/24 for the
client.

Ralph.

On Tue, Aug 15, 2023 at 11:43:17AM +0200, Mario Marietto wrote:
> Not for me. This parameter :
>
> -device i82559b,netdev=net0,mac="52:54:00:12:34:55"
>
> give to me a lot of problems :
>
> 1) forces me to enter the UEFI menu and to choose manually the disk that
> should boot
> 2) I can reach the login prompt of FreeBSD,but this network configuration
> does not work :
>
> /etc/rc.conf
>
> hostname="marietto"
> ifconfig_fxp0="DHCP"
> local_unbound_enable="YES"
> gateway_enable="YES"
>
> /etc/resolv.conf
>
> nameserver 127.0.0.53
> options edns0 trust-ad
> search homenet.telecomitalia.it
> nameserver 8.8.8.8
>
> root@mario:~ # ifconfig
>

> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
>         options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
>         inet6 ::1 prefixlen 128
>         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
>         inet 127.0.0.1 netmask 0xff000000
>         groups: lo
>         nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
> fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>         options=8<VLAN_MTU>
>         ether 52:54:00:12:34:55
>         inet 10.0.2.15 netmask 0xffffff00 broadcast 10.0.2.255
>         media: Ethernet autoselect (10baseT/UTP <half-duplex>)
>         status: active
>         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

>
> I can ping 10.0.2.15,but not google.com ;
>
> root@mario:~ # ping google.com
>
> PING google.com (142.250.180.142): 56 data bytes
> frozen.
>
> Now,on the FreeBSD forum,the user "covacat" suggested me to : "create
> a tap device on the linux side and bridge it with your ethernet
> iface"
>
> I tried,but now arises another problem : the kernel that I'm using on
> the chromebook has the option bridge disabled in the kernel,so
>
> I have recompiled the kernel to enable it. Here comes another problem
> : The new kernel worked,my Chromebook reached the desktop environment
>
> access login,but mouse,keyboard and trackpad don't work. I think that
> when I have recompiled the kernel I haven't produced the new kernel
>
> modules. Do you know what's the proper command to do this ? If I
> remember well,should it be "make modules" ?
>
>
>
> On Tue, Aug 15, 2023 at 2:34 AM Ralph Ronnquist <rrq@???> wrote:
>
> > The card "i82559b" worked for me.
> >
> > It boots without entering UEFI shell first. And it has update my local
> > AAVMF32_VARS.fd to continue doing so.
> >
> > Perhaps if copy the system AAVMF32_VARS.fd once again, to refresh
> > locally, with a working boot then your will "learn" too?
> >
> > regards,
> >
> > Ralph.
> >
> > On Mon, Aug 14, 2023 at 07:55:36PM +0200, Mario Marietto wrote:
> > > Do you need to go inside the UEFI menu to boot FreeBSD or in your case it
> > > is detected at first shot ? because I haven't fixed the probem yet.
> > > ...
> > > --
> > > Mario.
> > _______________________________________________
> > Dng mailing list
> > Dng@???
> > https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
> >
>
>
> --
> Mario.