486er hangs on boot with iPXE floppy

[His_Cifnes]

Getting interesting.

First of all, I swapped the RTL8139 NIC with an Intel Pro1000 Desktop Adapter PCI, but usual problem... hangs up with the prebuilt floppy image. --> So, not the card's fault as it appears.
Next, I did this:

1) installed git on a x86_64 machine with Linux Mint (up2date)
2) got the sources in the way NiKiZe recommended, via "git clone git://git.ipxe.org/ipxe.git"
3) created the src/config/local/general.h and wrote "#undef TIVOLI_VMM_WORKAROUND" in there, saved the file
4) cd'ed to src and ran " make bin/ipxe.dsk"

Unfortunately resultin in a compile error:

Code:

[............ lots and lots of DEPs and BUILD lines until.......]
  [BUILD] bin/undi.ids.o
  [BUILD] bin/rtl8185.ids.o
  [BUILD] bin/rtl8180.ids.o
  [BUILD] bin/ath5k.ids.o
  [BUILD] bin/ath9k.ids.o
  [AR] bin/blib.a
ar: Creating bin/blib.a
  [HOSTCC] util/zbin
util/zbin.c:7:18: fatal error: lzma.h: File or Directory not found
compilation terminated.
Makefile.housekeeping:1373: no rule for target „util/zbin“ failed
make: *** [util/zbin] Error 1

There is indeed no lzma.h in the whole git download, that I did. What I am doing wrong?

---

okay.. found out myself.. typical for noobs like me.. ; ) --> Installed lzma dev package... and g++ went through nicely.

Now testing the new image..

---

Nope.. no change.

486er still hangs at "Loading ROM image............................." but before "Initialising devices..."
amd athlon machine works fine with the shortly created disk image.

--> Are there some debug flags to compile in, to see what stage the booting fails?