Date: Tue, 23 Jan 2024 10:24:15 +1000 From: Peter Grehan <grehan@freebsd.org> To: Chuck Tuffli <chuck@freebsd.org> Cc: John Baldwin <jhb@freebsd.org>, freebsd-virtualization@freebsd.org Subject: Re: bhyve without UEFI questions Message-ID: <8db5b5fe-301b-4286-9d5d-4db7d1522a65@freebsd.org> In-Reply-To: <CAKAYmM%2Bh3JRLbGz3X_uYroWxvscaSJ-3TFVAbRKe957%2B1JuyuA@mail.gmail.com> References: <CAKAYmM%2Bh3JRLbGz3X_uYroWxvscaSJ-3TFVAbRKe957%2B1JuyuA@mail.gmail.com>
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Hi Chuck, > I'm getting conflicting information and thought I'd ask here about > guest disk images without UEFI. > > 1. If bhyve can boot the image with uefi-csm, should I be able to get > a graphical console? I tried: > -s 6:0,fbuf,tcp=0.0.0.0:5900,vga=io > VNC connects, but the screen is blank. I saw some mentions of vga=on, > but that generates an error message. The BIOS emulation in the EFI CSM code only implements a small subset of VGA calls - it may be possible that the bootloader for your guest goes outside of that. > 2. Instead of using uefi-csm, can bhyve boot SeaBIOS? I've tried -l > bootrom,/tmp/seabios/out/bios.bin but I'm not sure that is working. I have heard of some work on SeaBIOS, but afaik those efforts never quite got it to work. It wants to see h/w that looks like what Qemu provides. later, Peter.
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