[syslinux] syslinux.efi and vendor-class-identifier

[Ady Ady]

> We're using a CentOS 6 server running its native (ISC) dhcpd (v4.1.1) 
> and tftpd (v 0.49). I've installed syslinux.efi and ldlinux.e64 from the 
> syslinux-6.04-pre2 distro alongside the existing pxelinux.0
 
 
Please avoid the official binaries from Syslinux 6.04-pre2 and 
6.04-pre3. Additionally, the current git master head is not useful for 
troubleshooting.

Whether the specific version actually has any kind of influence on 
these particular tests, I don't know (but, at any rate I would avoid 
the aforementioned versions anyway).

Please try either official binaries from 6.04-pre1, or from current 
Debian Testing.

Please avoid mixing Syslinux-related files from different 
versions/builds (within the same platform).

Regards,
Ady.