[syslinux] EFI32, EFI64 on one disk

[Johann Obermayr]

Hello,

Thank you, for this information.
This is, what I need.

So I will switch from 6.03 to the last 6.04 pre.

Regards
  Johann


> -----Ursprüngliche Nachricht-----
> Von: Syslinux <syslinux-bounces at syslinux.org> Im Auftrag von Ady Ady via
> Syslinux
> Gesendet: Montag, 15. April 2019 18:53
> An: syslinux at syslinux.org
> Betreff: Re: [syslinux] EFI32, EFI64 on one disk
> 
> > Hello,
> >
> > i would like create a bootdisk , that can be boot from Old BIOS, EFI32
> > and EFI64.
> >
> > But for EFI Boot there is only one directory /EFI/BOOT/ In this
> > directory I can copy BOOTia32.EFI and BOOTx64.EFI.
> >
> > But the *.c32 files for EFI32 & EFI64 , I can install to this
> > directory at the same time.
> >
> > Is there a way to load the *.c32 from different directory ?
> 
> 
> Using Syslinux 6.04-pre1, you can use the PATH directive, together with
> SYSLIA32.CFG and SYSLX64.CFG.
> 
> In the following example, the file "SYSLUEFI.CFG" is "in-common" to both
> UEFI platforms, and each of the other 2 cfg files is parsed by its respective
> "syslinux.efi" (renamed) only (i.e. depending on the platform you are
> booting).
> The respective c32 modules are then located under '/EFI/BOOT/X64/' and
> /EFI/BOOT/IA32/'. The core modules, LDLINUX.E{32,64} are located under
> '/EFI/BOOT/', together with the 2 "*.EFI" files and the CFG files.
> 
> ### /EFI/BOOT/SYSLIA32.CFG start ###
> 
> PATH IA32
> INCLUDE SYSLUEFI.CFG
> 
> ### /EFI/BOOT/SYSLIA32.CFG end ###
> 
> 
> ### /EFI/BOOT/SYSLX64.CFG start ###
> 
> PATH X64
> INCLUDE SYSLUEFI.CFG
> 
> ### /EFI/BOOT/SYSLX64.CFG end ###
> 
> 
> ### /EFI/BOOT/SYSLUEFI.CFG start ###
> 
> UI vesamenu.c32
> 
> LABEL catl
> COM32 cat.c32
> APPEND SYSLUEFI.CFG
> 
> LABEL mylabel
> LINUX mykernel
> INITRD myinitrd
> APPEND myoptions
> 
> ### /EFI/BOOT/SYSLUEFI.CFG end ###
> 
> Just in case someone was not reading carefully, this method is available in
> 6.04-pre1 (not in 6.03).
> 
> About the PATH directive, see:
> 
>  www.syslinux.org/wiki/index.php/Config#PATH
> 
> HTH,
> Ady.
> 
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