Syslinux - Jul 2013 - Efi64 boot fail during download from kernel and initrd via http

> Damn, I messed up the git tags so I wasn't looking at an accurate list
> of changes between -pre1 and -pre2.
> 
> Your error is likely being triggered by the recent kernel changes. For
> x86-64 we now try to boot a Linux kernel via the 32-bit entry point.
> It's possible that code doesn't work correctly with vmware.
> 
> Could you grab -pre10 and change the APPEND argument for your debug.c32
> line to,
> 
>    APPEND -e efi_boot_linux handover_boot valid_pecoff_image
> 
> which should hopefully print some info from the kernel boot paths.
> 
> -- 
> Matt Fleming, Intel Open Source Technology Center
> 
I tried it with pre11, same problem.

I modified the debug append line to the one above.

I get the following output:
efi_boot_linux: kernel_start 0x1000000 kernel_size 0x472390 initramfs 0x7e3dc998
setup_data 0x0 cmdline 0x9f000
efi_boot_linux: setup_sects 32 kernel_size 4662160

Hope this helps
Regards Michael

On Thu, 25 Jul, at 09:18:30AM, Michael Szerencsits
wrote:
> I tried it with pre11, same problem.
> 
> I modified the debug append line to the one above.
> 
> I get the following output:
> efi_boot_linux: kernel_start 0x1000000 kernel_size 0x472390 initramfs
0x7e3dc998 setup_data 0x0 cmdline 0x9f000
> efi_boot_linux: setup_sects 32 kernel_size 4662160
> 
> Hope this helps
> Regards Michael
Thanks, that does help. At least we know it's taking the 32-bit entry
path.

I opened the following bug report to track this issue,

  http://bugzilla.syslinux.org/show_bug.cgi?id=21

Does vmware display the register contents when it crashes? That info
would be useful to try and diagnose what's going wrong. It's probably
not making the transition to 32-bit mode correctly.

Out of curiosity, what is the kernel version that you're booting?

-- 
Matt Fleming, Intel Open Source Technology Center

> Thanks, that does help. At least we know it's taking the 32-bit entry
> path.
> 
> I opened the following bug report to track this issue,
> 
>   http://bugzilla.syslinux.org/show_bug.cgi?id=21
> 
> Does vmware display the register contents when it crashes? That info
> would be useful to try and diagnose what's going wrong. It's
probably
> not making the transition to 32-bit mode correctly.
> 
> Out of curiosity, what is the kernel version that you're booting?
> 
> -- 
> Matt Fleming, Intel Open Source Technology Center
> 
There are no additional infos from VMWare, maybe you found some usefully hints
in the vmware.log

I boot the vmlinuz and initrd.img from FC17-64bit netinst iso

Regards Michael
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