Can't make nsunix. HELP! (In English)

[Kenichi Katsumi]

 We installed 2.10bsd on pdp11/44. I could make non
networking kernel, but I could not make networking
kernel. ( I have excelan's ethernet board, then I
convert driver program if_ex.c from 4.3bsd. but compile
was exit by checksys program. I attempt to make kernel
which has deuna driver, but could not. )
Who is made networking kernel?
How do I make networking kernel?

See follows error message:
-------------------------------------------------------------------------------
size unix
text	data	bss	dec	hex
49152	8258	37842	95252	17414	total text: 137152
	overlays: 7872,7488,8128,6912,7296,7616,8768,7616,7104,7232,6656,4800,512
./checksys unix
./checksys: base segment is 49152, min is 49152, too small by 0 bytes.
./checksys: overlay 7 is 8768, max is 8192, too large by 576 bytes.
System will occupy 186368 bytes of memory (including buffers and clists).

	    end {0000000}	  bsize {0020040}	   nbuf {0020042}
	    buf {0056172}	  nproc {0020026}	   proc {0115610}
	  ntext {0020030}	   text {0130524}	  nfile {0020034}
	   file {0126214}	 ninode {0020032}	  inode {0022114}
	ncallou {0020036}	callout {0066234}	ucb_cli {0111652}
	 nclist {0020044}	  noka5 {0111654}
**** SYSTEM IS NOT BOOTABLE. ****
*** Exit 2

Stop.
-------------------------------------------------------------------------------


pdp11/44 configration.

CPU 			PDP11/44
MEMORY			3.25Mbytes
DISK			RM02 emulate
			(Fujitsu M2211L,Control board Emulex SC11
			 Fujitsu M2294,Control board Western Peripherl DC-231)	
			RL01
MAGTAPE			TM11 Compatible
SIRIAL-INTERFACE	DZ-11
ETHERNET-BOARD		EXCELAN EXOS204

	
Kenichi Katsumi (katsumi at muse.sonytek.junet)
Scientific Computing System Management Division.
SONY/Tektronix Corp. (In Japan)