[syslinux] Syslinux 6.03-pre7: EFI64 broken (Gene Cumm)

[Spike White]

Still interested in pre-compiled binaries for 6.03-pre6.

But my comment about 6.02 TFTP brokenness may speak more to my lack of
understanding of the TFTP protocol than to any pxelinux 6.02 code problems.


It seems that when TFTP sends an OACK back to syslinux.efi, it sends it
from another port than 69.  So, it seems to be opening a data connection
back to the TFTP client off an ephemeral port.  Very similar to what FTP
does, using the FTP DATA port to send back data.

I did not understand that.  Based on that, it's natural for pxelinux's TFTP
code to send the ACK back to this high port that sent it the OACK packet.

The TFTP load of ldlinux.e64 by syslinux.efi is still failing, but not for
the naive reason I surmised.

Spike


On Wed, Mar 12, 2014 at 11:52 PM, Spike White <spikewhitetx at gmail.com>wrote:

> Gene,
>
> Where did you find the precompiled binaries for syslinux 6.03-pre7?
>
> Actually, I'm interested in the pre-compiled binaries for syslinux
> 6.03-pre6.
>
> I went out to kernel.org, but the latest they have is 6.02.  Which
> appears to have an endian problem in its TFTP client code (when
> syslinux.efi tries to connect to the TFTP server, attempts to connect to
> UDP port 17664 instead of 69).    That's when using the pre-compiled 6.02
> EFI64 syslinux.efi on Intel x86_64 processors.
>
> This appears fixed in 6.0.3, so that's why I'm trying to find the 6.03
> pre-compiled binaries.
>
> Spike
>
>   ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 11 Mar 2014 16:34:23 -0400
> From: Gene Cumm <gene.cumm at gmail.com>
> To: For discussion of Syslinux and tftp-hpa <syslinux at zytor.com>
> Subject: [syslinux] Syslinux 6.03-pre7: EFI64 broken
> Message-ID:
>         <CAD0Rxe=K+pX1PJKMdeCPiw81iXc7wr9wuY=
> XYgHo+uhtBu51wA at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Using both a disk load and netboot, the precompiled binaries of
> Syslinux 6.03-pre7 for EFI64 appear broken.  Testing 6.03-pre6 on the
> same system results in a successful boot.
>
> This does not appear to affect the BIOS architecture and likely
> affects EFI32 also.
>
> --
> -Gene
>