[Qemu-devel] Re: Recent BIOS breaks SYSLINUX

[Qemu-devel] Re: Recent BIOS breaks SYSLINUX

[Ed Swierk]

On 2/5/07, Ed Swierk <eswierk@arastra.com> wrote:
> I'm attempting to boot a Linux disk image with the SYSLINUX boot
> loader using the -nographic option. On the latest qemu CVS, the boot
> loader hangs before printing "Ready" and booting the kernel. But if I
> use the same version of qemu with the BIOS from 0.8.2, it boots just
> fine.

More testing reveals that -nographic has nothing to do with the
problem. The FC6 diskboot.img (which uses SYSLINUX) doesn't boot, even
without -nographic:

  http://mirrors.kernel.org/fedora/core/6/i386/os/images/diskboot.img

The FC6 boot.iso (which uses ISOLINUX) boots fine:

  http://mirrors.kernel.org/fedora/core/6/i386/os/images/boot.iso

as does diskboot.img with bios.bin 1.14 or earlier.

--Ed

Re: [Qemu-devel] Re: Recent BIOS breaks SYSLINUX

[Lonnie Mendez]

On Mon, 2007-02-05 at 22:42 -0800, Ed Swierk wrote:
> On 2/5/07, Ed Swierk <eswierk@arastra.com> wrote:
> > I'm attempting to boot a Linux disk image with the SYSLINUX boot
> > loader using the -nographic option. On the latest qemu CVS, the boot
> > loader hangs before printing "Ready" and booting the kernel. But if I
> > use the same version of qemu with the BIOS from 0.8.2, it boots just
> > fine.
> 
> More testing reveals that -nographic has nothing to do with the
> problem. The FC6 diskboot.img (which uses SYSLINUX) doesn't boot, even
> without -nographic:
> 
>   http://mirrors.kernel.org/fedora/core/6/i386/os/images/diskboot.img
> 
> The FC6 boot.iso (which uses ISOLINUX) boots fine:
> 
>   http://mirrors.kernel.org/fedora/core/6/i386/os/images/boot.iso
> 
> as does diskboot.img with bios.bin 1.14 or earlier.

Seems to be hanging here:

http://www2.kernel.org/git/?p=boot/syslinux/syslinux.git;a=blob;f=conio.inc#l271

Re: [Qemu-devel] Re: Recent BIOS breaks SYSLINUX

[Fabrice Bellard]

The variable SerialPort seems to be set to 0xffff instead of the I/O 
port of the serial port. I did not try to look further yet.

Regards,

Fabrice.

Lonnie Mendez wrote:
> On Mon, 2007-02-05 at 22:42 -0800, Ed Swierk wrote:
> 
>>On 2/5/07, Ed Swierk <eswierk@arastra.com> wrote:
>>
>>>I'm attempting to boot a Linux disk image with the SYSLINUX boot
>>>loader using the -nographic option. On the latest qemu CVS, the boot
>>>loader hangs before printing "Ready" and booting the kernel. But if I
>>>use the same version of qemu with the BIOS from 0.8.2, it boots just
>>>fine.
>>
>>More testing reveals that -nographic has nothing to do with the
>>problem. The FC6 diskboot.img (which uses SYSLINUX) doesn't boot, even
>>without -nographic:
>>
>>  http://mirrors.kernel.org/fedora/core/6/i386/os/images/diskboot.img
>>
>>The FC6 boot.iso (which uses ISOLINUX) boots fine:
>>
>>  http://mirrors.kernel.org/fedora/core/6/i386/os/images/boot.iso
>>
>>as does diskboot.img with bios.bin 1.14 or earlier.
> 
> 
> Seems to be hanging here:
> 
> http://www2.kernel.org/git/?p=boot/syslinux/syslinux.git;a=blob;f=conio.inc#l271
> 
> 
> 
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