Syslinux - Jun 2014 - EFI booting over network - can't then load anything

Hi all..

Quick one if someone could show me a line out of their configuration for these
two scenario's .

We're trying to do two things via EFI64 network boot & SYSLINUX:
* boot a CentOS 6.5 installation vmlinuz/initrd.img combination - machines just
reboot after downloading the initrd.img.
* boot windows server 2012 r2 PE menu via bootmgfw.efi - unsure of the commands
to 'chain' load another .efi file. Everything I've tried has failed.

Both of these work if I switch to GRUB2 - but we want to use SYSLINUX with EFI
as we already use it with the older BIOS PXE booting.

I also tried to load hdt as a test - that seemed to hang machines too.

I've tried 6.02 and 6.03-pre13 (and a load in between) - all with no
success. All this has been tried with and without a menu. All tried in VMWare
workstation and with a couple of different physical machines.

Many Thanks
Andrew

On 06/06/2014 07:27 AM, Andrew Rae wrote:
> Hi all..
> 
> Quick one if someone could show me a line out of their configuration for
these two scenario's .
> 
> We're trying to do two things via EFI64 network boot & SYSLINUX:
> * boot a CentOS 6.5 installation vmlinuz/initrd.img combination - machines
just reboot after downloading the initrd.img.
> * boot windows server 2012 r2 PE menu via bootmgfw.efi - unsure of the
commands to 'chain' load another .efi file. Everything I've tried
has failed.
> 
> Both of these work if I switch to GRUB2 - but we want to use SYSLINUX with
EFI as we already use it with the older BIOS PXE booting.
> 
> I also tried to load hdt as a test - that seemed to hang machines too.
> 
> I've tried 6.02 and 6.03-pre13 (and a load in between) - all with no
success. All this has been tried with and without a menu. All tried in VMWare
workstation and with a couple of different physical machines.
> 
The support for chaining another EFI isn't complete yet,
unfortunately... we are kind of short-handed these days unfortunately :(

The former "should" work, although I'm not sure how much testing
has
been done with kernels that old.

	-hpa

> -----Original Message-----
> From: H. Peter Anvin [mailto:hpa at zytor.com]
> Sent: 06 June 2014 16:14
> To: Andrew Rae; 'syslinux at zytor.com'
> Subject: Re: [syslinux] EFI booting over network - can't then load
anything
> 
> On 06/06/2014 07:27 AM, Andrew Rae wrote:
> > Hi all..
> >
> > Quick one if someone could show me a line out of their configuration
for
> these two scenario's .
> >
> > We're trying to do two things via EFI64 network boot &
SYSLINUX:
> > * boot a CentOS 6.5 installation vmlinuz/initrd.img combination -
machines
> just reboot after downloading the initrd.img.
> > * boot windows server 2012 r2 PE menu via bootmgfw.efi - unsure of the
> commands to 'chain' load another .efi file. Everything I've
tried has failed.
> >
> > Both of these work if I switch to GRUB2 - but we want to use SYSLINUX
with
> EFI as we already use it with the older BIOS PXE booting.
> >
> > I also tried to load hdt as a test - that seemed to hang machines too.
> >
> > I've tried 6.02 and 6.03-pre13 (and a load in between) - all with
no success.
> All this has been tried with and without a menu. All tried in VMWare
> workstation and with a couple of different physical machines.
> >
> 
> The support for chaining another EFI isn't complete yet,
unfortunately... we are
> kind of short-handed these days unfortunately :(
> 
> The former "should" work, although I'm not sure how much
testing has been
> done with kernels that old.
> 
> 	-hpa

Many thanks!

I think we thought that it was more functional in EFI mode than it is -
apologies !

I/We tried to do a RedHat 7 RC UEFI Network Boot - and that seemed to work OK
& as expected....
If we could only get Centos 6.5 and some version of WindowsPE to boot! - we
could switch to using EFI booting on the new pc's/laptops to image them up!

Thanks - I'll keep my eye on the mailing list & try it on a few of the
newer releases as they come out
Andrew

p.s. I've just realised I've been using the tftpd-hpa implementation for
years - thanks for that too!