Re: Booting CDs in Qemu

[Chavdar Ivanov <ci4ic4%gmail.com@localhost>]

On Fri, 7 Aug 2020 at 01:05, Robert Nestor <rnestor%mac.com@localhost> wrote:
>
> Just dawned on me, I’m betting the NetBSD CD is configured to boot either via BIOS or UEFI and Qemu is probably trying BIOS first since that’s its default.

No, it definitely says that it is booting in EFI mode. if you
interrupt it and drop to the command prompt, you can see the efivars.
The graphics is also wsfb and the console looks like the NetBSD
console after a UEFI boot; X -configure makes the relevant xorg.conf
file (however, modesetting does not work, one has to change it to
wsfb; also in my case - over VNC - the mouse driver has to be changed
to 'ws', although even this way it works incorrectly).

I tried to boot the rEFInd.iso file, I presume the same you've tried -
of v. 0.12 - and got the same result as you - just the logo in the
middle of the screen.

I'll install manually rEFInd in the vm I just spun up to see if it can
be recognized.

>
> -bob
>
> On Aug 6, 2020, at 6:20 PM, Chavdar Ivanov <ci4ic4%gmail.com@localhost> wrote:
>
> > With:
> >
> >
> > /usr/pkg/bin/qemu-system-x86_64 \
> >        -device qemu-xhci \
> >        -device usb-tablet \
> >        -machine q35 \
> >        -bios /usr/pkg/share/ovmf/OVMFX64.fd \
> >        -m 4096 \
> >        -k en-gb \
> >        -smp 2 \
> >        -accel nvmm \
> >        -vnc :1 \
> >        -drive format=raw,file=/dev/zvol/rdsk/pail/testu-new \
> >        -net tap,fd=3 3<>/dev/tap1 \
> >        -net nic \
> >        -cdrom /iso/NetBSD-9.99.69-amd64.iso
> >
> >
> > I was able to boot today's -current in efi mode, no problem.
> > Obviously, I access the console over vnc.
> >
> > Chavdar
> >
> > On Thu, 6 Aug 2020 at 23:33, Robert Nestor <rnestor%mac.com@localhost> wrote:
> >>
> >> Something simple I must be missing here.  I downloaded the CD image of rEFInd from:
> >>        http://sourceforge.net/projects/refind/files/0.12.0/refind-cd-0.12.0.zip/download
> >>
> >> Burned it to a CD and tried booting that CD on my PC.  It doesn’t boot using BIOS, but it does boot using UEFI.  So I know the CD is good.  I saved the ISO file that I used to burn the CD.
> >>
> >> Tried booting the ISO file in qemu with:
> >>        qemu-system-x86_64 -boot d -cdrom refind.iso -m 512
> >>
> >> And got an error that it couldn’t boot with error code 0009.  Ok this appears to mean that qemu tried booting it with a default BIOS boot which the CD isn’t configured for. The recommended solution is to either add the BIOS boot code to the CD or specify a OVMF/UEFI boot file to Qemu.
> >>
> >> Installed the OVMF package and tried booting again with:
> >>        qmeu-system-x86_64 -bios /usr/pkg/share/ovmf/OVMFX64.bin —m 512 \
> >>               -boot d -cdrom refind.iso
> >>
> >> Got the Tianocore splash screen then the UEFI shell.  Entered “exit” at the shell prompt and got a message "Graphics Console Started" and then nothing.  Also tried the OVMFIA32.fd file with identical results.  Adding “-vga std” to the command line didn’t change things either.
> >>
> >> For grins I added “-accel mvmm” to the command line and got the error:
> >>        Failed to execute a VCPU
> >>
> >> So I have three questions:  First, what am I missing to get this bootable CD to boot up in qemu?  And second, is there a limitation in NVMM that prevents it from running this boot sequence? And finally, if I get the magic sequence that allows the CD to boot with qemu, is there a way of booting without getting the UEFI shell prompt?
> >>
> >> Thanks
> >
> >
> >
> > --
> > ----
>


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