[ipxe-devel] November wimboot patches for Syslinux

Max max at dontlookhere.net
Mon Dec 31 19:57:25 UTC 2018

Update booting with Syslinux does not work either.
>From this screen with a loading bar I get:
Patched WIM header boot metadata 0x137adea 5 ->0x1674da80
Patched WIM header boot index 2->3

and before reboot I get:
Could not set file position: 0x80000000000000035
Failed to exit

It immediately reboots. I had to film the sequence and move through the
frames to get the error.

If you are interested in seeing the pictures I put those two screens on

I would be interested in getting this to work and testing this further.

Thanks in advance and I hope everyone has a happy new year!


On Sun, Dec 30, 2018 at 11:35 AM Max <max at dontlookhere.net> wrote:

> Hello all,
> I have just joined the list. I am familiar with compiling things in *nix
> and some C, but have never done any real programming in C.
> I have been trying to get wimboot to work in or via Grub2 EFI.
> I downloaded the patches sent to this list in November from Friedemann.
> It may have been the way I downloaded them, but for every one of the search
> lines, I had to remove a leading space.  Additionally, it looks like the
> second email/patch has the patch text 2x separated by a shell prompt.
> After that, the additional function efi_add_file in efifile.c was not also
> added to the header file.  I don't know if that is something that I should
> just know to run a command to auto regenerate or just an oversight.
> The addition of efi_add_file includes a line directly above which only
> contains "int".  Comparing that function to the functions around it made me
> think int should begin the same line as the function efi_add_file.
> After adding the function to efifile.h :
> extern int efi_add_file ( const char *name, void *data, size_t len);
> I got farther, however my system did not understand the -liberty flag to
> gcc/cc .  I looked around a bit, but did not find a reference to the flag
> in the documentation so I removed it.
> The binary then compiles and boots via normal methods.  It did not improve
> booting via grub2 from USB.
> The patch was designed for Syslinux though, so I will test that next.
> If anyone can fill me in on the -liberty flag or what should have been
> done with headers file that would be appreciated.  Any other suggestions
> and comments are also appreciated, but I suspect out of the scope of this
> list.
> Thank you in advance,
>           Max
> Ah, almost forgot I'm compiling on 64-bit Ubuntu 18.04.1 .
> gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
> Wimboot was cloned from the git repo on the iPXE domain and is up-to-date.
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