<s>
Preseeding	O
is	O
a	O
method	O
for	O
automating	O
the	O
installation	B-Application
of	O
the	O
Debian	O
operating	B-General_Concept
system	I-General_Concept
and	O
its	O
derivatives	O
.	O
</s>
<s>
Answers	O
to	O
installation	B-Application
questions	O
,	O
which	O
would	O
normally	O
be	O
answered	O
interactively	O
by	O
an	O
operator	O
,	O
are	O
predetermined	O
and	O
supplied	O
via	O
a	O
configuration	O
file	O
(	O
and	O
sometimes	O
boot	O
parameters	O
)	O
.	O
</s>
<s>
This	O
is	O
similar	O
to	O
unattended	O
installations	B-Application
of	O
Windows	O
operating	B-General_Concept
systems	I-General_Concept
using	O
an	O
answer	B-Application
file	I-Application
(	O
see	O
Installation	B-Application
(	O
computer	O
programs	O
)	O
)	O
.	O
</s>
<s>
Many	O
Debian-based	O
operating	B-General_Concept
systems	I-General_Concept
support	O
preseed	B-Application
,	O
because	O
it	O
is	O
a	O
feature	O
of	O
the	O
Debian-Installer	B-Language
(	O
also	O
known	O
as	O
"	O
d-i	B-Language
"	O
)	O
.	O
</s>
<s>
and	O
for	O
customizing	O
install	B-Application
CDs	I-Application
.	O
</s>
