[syslinux] PXELINUX and http?

Virtual Xmas luvs.christmas at gmail.com
Wed Mar 5 09:40:43 PST 2014

On 3/5/2014 4:21 AM, Gene Cumm wrote:
> tp.  But I can't get it to work.
> 5.10 introduced lpxelinux.0, a variant that uses UNDI+lwIP instead of PXE calls.

Ah, ok, the wording in 5.10 change log is a little ambiguous then...It 
seems to imply (to me at least) that http support was added to 
pxelinux.0 with an old TCP stack, but lpxelinux.0 has http with a new 
TCP stack.

>> I am using syslinux 6.03pre-6, but get the same errors with 6.02.
> Thanks for testing the latest pre-release.  If there's a bug here,
> this is the best to test with.
> For starters, you should see more.  If you haven't used any 5.xx+
> version before, please ensure you have lib*.c32 copied to the same
> location as [l]pxelinux.0 ldlinux.c32 and (vesa)menu.c32.  This will
> likely resolve your issue.

This is the script I use to update the pxelinux files in /tftpboot....Am 
I missing anything?


cp bios/core/pxelinux.0 ${T}
cp bios/core/lpxelinux.0 ${T}
cp bios/com32/modules/linux.c32 ${T}
cp bios/com32/lib/libcom32.c32 ${T}
cp bios/com32/libutil/libutil.c32 ${T}
cp bios/com32/cmenu/libmenu/libmenu.c32 ${T}
cp bios/com32/gpllib/libgpl.c32 ${T}
cp bios/com32/elflink/ldlinux/ldlinux.c32 ${T}
cp bios/com32/hdt/hdt.c32 ${T}
cp bios/memdisk/memdisk ${T}
cp bios/com32/mboot/mboot.c32 ${T}
cp bios/com32/menu/vesamenu.c32 ${T}/pxelinux.cfg

If I boot to pxelinux.0 I get my menu.  If I change my boot-file to 
lpxelinux.0, I just get the boot: prompt after lpxelinux.0 loads. 
Network tracings shows lpxelinux.0 attempting to search for the menu 
files(via tftp), but something seems to be broken in that it's not 
picking one up.  I have both a default and a 01-mac-address file for 
this client, and it's loading neither one (pxelinux.0 is loading the 
01-mac-address one).

If I specify my menu file over HTTP with DHCP options 209 and 210, I get 
the menu.  And network tracing shows all the .c32 files and everything 
else coming over http at that point....

More information about the Syslinux mailing list