[syslinux] UEFI PXE Difficulties

Geert Stappers stappers at stappers.nl
Fri Feb 13 05:45:40 PST 2015

On Thu, Feb 12, 2015 at 09:33:27AM +0200, Ady wrote:
> On Thu, Feb 12, 2015 at 05:17:08PM +1100, Paul Daniels wrote:
> > Im a long time PXE boot fan.  I use it for wimbooting windows PE, linux
> > images via http, and memtest mainly.
> > 
> > Ive got it nicely customised with my own graphics etc.
> > 
> > Then UEFI booting came along.  Till now ive been content simply setting
> > bios's to CSM mode and doing my thing....
> > 
> > Ive had another go at EFI PXE booting and can now get the menus and grahics
> > from syslinux working, but I cannot get any of my images to run.
> > 
> > They start to load and the system reboots.
> > 
> > I think im missing something basic here,  do my operating systems need a
> > signature registered on the computers? or should syslinux simply pass
> > control to the kernel?
> > 
> > any advice?
> Although Syslinux 6.03 has some limitations (and bugs) when trying to 
> boot some kernels, you have not mentioned any specific kernel (or 
> distro) you are having problems with. The configuration settings that 
> were used to build the kernel are relevant too.
> For example, the older memtest(s) kernels are not compatible with UEFI 
> systems. Another one: as of version 6.03, memdisk has support for BIOS, 
> not UEFI.
> So, there are several possible reasons for your kernel not to boot in 
> UEFI systems with Syslinux 6.03.
> Sometimes the hardware (or its firmware) might play a role. Updating 
> your firmware might help.
> In some cases, the TFPT/DHCP options might be inadequate.
> In other words, you would need to be more specific about the behavior 
> you are seeing (i.e. provide more details).

  They start to load and the system reboots.

Geert Stappers
Leven en laten leven

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