FINAL
TRIM
SIZE
:
7.0
in
x
8.5
in
C
Displaying
and
Setting
the
Secure
Boot
Mode
In
Normal
Mo
de,
there
may
b e
circumstances
in
whic
h
y
ou
w
ould
not
wish
to
allo
w
an
y
one
to
attempt
to
b o ot
y
our
w
orkstation
from
a
device
other
than
the
device
y
ou
ha
v
e
sp ecied,
nor
to
con
trol
the
system
from
an
y
console
other
than
the
one
y
ou
ha
v
e
designated.
This
can
b e
an
imp ortan
t
consideration
in
secure
installations.
If
y
ou
set
up
y
our
system
in
suc
h
a
w
a
y
that
it
is
ph
ysically
imp ossible
for
unauthorized
p ersons
to
disconnect
it
from
its
designated
b o ot
device,
y
ou
can
guarantee
that
the
b o ot
console
user
in
terface
cannot
b e
used
to
b o ot
the
system
from
an
unauthorized
device
or
to
c
hange
the
console
path.
If
the
secure
b o ot
mo
de
is
set
to
on,
the
b o ot
console
in
terface
cannot
b e
activ
ated;
th
us,
y
ou
are
assured
that
y
our
system's
securit
y
cannot
b e
compromised
through
in
teraction
with
that
in
terface.
T
o
c
hec
k
the
status
of
the
secure
b o ot
mo
de,
t
yp e
the
follo wing
at
the
BOOT_ADMIN>
prompt:
secure
4
Return
5
The
status
\ on "
or
\ off "
is
display
ed.
T
o
c
hange
the
v
alue
of
the
secure
b o ot
mo
de,
t
yp e
the
follo wing
at
the
BOOT_ADMIN>
prompt:
secure
state
4
Return
5
where
state
is
\ on "
or
\ off ".
Caution
Once
the
secure
b o ot
mo
de
is
set
to
on,
the
only
w
a
y
to
turn
it
o
is
to
disconnect
the
b o ot
device.
When
y
ou
turn
on
y
our
w
orkstation
after
isolating
it
from
its
b o ot
device,
the
b o ot
console
in
terface
reapp ears.
Y
ou
can
then
turn
the
secure
b o ot
mo
de
o,
turn
o
y
our
w
orkstation,
reconnect
the
b o ot
device,
and
turn
the
system
bac
k
on.
DRAFT
2/5/97
11:31
Using
the
Boot
ROM
C-13
