<s>
Network	B-Device
Bootable	I-Device
Image	I-Device
(	O
NBI	O
)	O
is	O
a	O
legacy	B-Device
format	O
that	O
wraps	O
operating	B-General_Concept
system	I-General_Concept
images	O
to	O
makes	O
it	O
possible	O
for	O
Etherboot	B-Device
to	O
load	O
the	O
images	O
directly	O
.	O
</s>
<s>
NBI	O
format	O
is	O
able	O
to	O
combine	O
kernel	B-Operating_System
,	O
file	B-Application
system	I-Application
and	O
various	O
boot	B-Operating_System
parameters	O
,	O
such	O
as	O
location	O
of	O
remote	O
file	B-Application
system	I-Application
or	O
server	O
IP	B-Protocol
address	I-Protocol
,	O
into	O
one	O
bootable	B-Operating_System
file	B-Operating_System
.	O
</s>
