[syslinux] Loading syslinux.efi from preloader.efi

[Mattias Schlenker]

Hello everyone,

I am trying to prepare a UEFI bootable thumb drive using syslinux and 
Linux foundations PreLoader.efi. I started the same as as it works with 
gummiboot-42:

  * Copy PRELOADER.EFI to EFI/BOOT/BOOTX64.EFI
  * Copy HASHTOOL.EFI to EFI/BOOT/BOOTX64.EFI
  * Copy gummibootx64.efi to EFI/BOOT/LOADER.EFI

With just those files PreLoader asks to enroll gummiboot's hash. I do so 
and end up in gummiboot's menu.

Copying the EFI64 syslinux.efi (from the 6.03-pre1 tarball) to 
EFI/BOOT/LOADER.EFI results in PreLoader complaining: Failed to start 
loader.efi: (2) Invalid Parameter. Disabling Secure Boot and copying 
syslinux.efi to EFI/BOOT/BOOTX64.EFI results in the firmware complaining 
"Operating System not Found". System is a Lenovo Ideacentre Q190.

Who is to blame? Did I miss something that behaves differently than 
gummiboot? Is Lenovos firmware broken? Might the syslinux.efi not comply 
to the EFI standards?

Regards,
Mattias

-- 
Mattias Schlenker - Redaktion + EDV-Beratung + Linux-CD/DVD-Konzepte
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