[ipxe-devel] Regression with commit fc87adb46c1395b09302085e9d15fcd8ab3c31fe - [efi] Expose downloaded images via EFI_SIMPLE_FILE_SYSTEM_PROTOCOL on IMAGE_EFI

Jarrod Johnson jarrod.b.johnson at gmail.com
Wed Apr 10 17:21:57 UTC 2013

This was working for me, but broke as of
fc87adb commit...  If I back that one out, chain loading efi images from
snponly.efi works again...

On Tue, Apr 9, 2013 at 11:42 AM, James A. Peltier <jpeltier at sfu.ca> wrote:

> ------------------------------
> 2013/4/6 Michael Brown <mbrown at fensystems.co.uk>
>> This will give you an iPXE EFI ROM; you'll see it show up as "EFI
>> Network" in the EFI boot device selection screen, and it should thereafter
>> look and feel similar to normal iPXE.
>> There is no such thing as a non-EFI (aka BIOS or "legacy") ROM which is
>> capable of loading an EFI image.  Such a thing simply does not and can not
>> exist.
>> Michael
> I didn't know this. Up to know I've been using a modified version of ipxe
> that gives me a shell after initilizing the devices (just a modified main()
> function), so that I can load and boot any image over a network. I've
> always had all image types enabled in general.h and never had an issues
> when starting ipxe. Right now my system just reboots regardless of the not
> supported IMAGE_EFI. From my point of view this is a regression, because
> befor this commit ipxe started without glitches regardless if an image is
> supported or not. So even if the image is not supported then ipxe should
> gracefully continue initilization and not reboot the mashine....
> From the shell I can point to and download any efi image over the network,
> but why it cannot boot the system?
> Joshua
> I have iPXE working with both legacy BIOS and EFI machines right now,
> except that I can't get it to chainload to an EFI bootloader such as
> CentOS's BOOTX64.efi.  I always end up with "Could not boot: No such
> device", although considering this is my first time trying to do this I'm
> probably not doing it right.  I'm just trying with
>   chain
> http://mirror.its.sfu.ca/mirror/CentOS/6/os/x86_64/EFI/BOOT/BOOTX64.efi
> which is probably not right.  Any ideas?
> --
> James A. Peltier
> Manager, IT Services - Research Computing Group
> Simon Fraser University - Burnaby Campus
> Phone   : 778-782-6573
> Fax     : 778-782-3045
> E-Mail  : jpeltier at sfu.ca
> Website : http://www.sfu.ca/itservices
> “A successful person is one who can lay a solid foundation from the bricks
> others have thrown at them.” -David Brinkley via Luke Shaw
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