Re: Booting CDs in Qemu

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

On Fri, 7 Aug 2020 at 02:35, Robert Nestor <rnestor%mac.com@localhost> wrote:
>
> OK, thanks!   I’m not sure I fully understand what you mean by “moved the relevant file to the top”.  Do you mean you moved the \EFI\boot\bootx64.efi file to \EFI\bootx64.efi?

I wrote this too late in the night. I mean I got into the EFI menu
setup, Boot Management and moved the last entry - for rEFInd - to the
top; the next entry was the one from the disk, which I can still
select to boot NetBSD directly.

>
> There was an old reference I found in my search that seemed to imply this was  a solution, but then I don’t see how the NetBSD CD booted.  Doesn’t it’s bootx64.efi file live in \EFI\boot\bootx64.efi just like it does on the rEFInd CD?

Yes.

nbsdu# mount -t msdos /dev/dk0 /mnt/efi/
nbsdu# find /mnt/efi/ | egrep -v icons/
/mnt/efi/
/mnt/efi/EFI
/mnt/efi/EFI/boot
/mnt/efi/EFI/boot/bootia32.efi
/mnt/efi/EFI/boot/bootx64.efi
/mnt/efi/EFI/refind
/mnt/efi/EFI/refind/refind_x64.efi
/mnt/efi/EFI/refind/refind.conf
/mnt/efi/EFI/refind/icons
.......
/mnt/efi/NvVars
>
> -bob
>
> On Aug 6, 2020, at 7:26 PM, Chavdar Ivanov <ci4ic4%gmail.com@localhost> wrote:
>
> > On Fri, 7 Aug 2020 at 01:11, Chavdar Ivanov <ci4ic4%gmail.com@localhost> wrote:
> >>
> >> 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.
> >
> > I was able to install rEFInd manually in the efi partition of that
> > NetBSD installation and boot it under OVMF (I rebooted the machine and
> > just hit 'escape' in the VNC window, which got me to the EFI setup
> > menu, where I located the relevant efi file and moved it to the top).
> >
> > Chavdar
> >
> >>
> >>>
> >>> -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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