Cisco AGS+, Hardware Installation And Maintenance

Page: 62 / 146

Configuring
Cards
The
lowest four
bits
of the processor
configuration
register
bits
and
form
the
boot field
The
boot
field
specifies
number
in binary
If you set
the boot
field
value
to you must
boot the
operating system manually
by
giving
or boot command
to
the
system
bootstrap program
If
you set
the
boot
field
value
to
the
factory
default the system boots using the default
RUM
software
If you set the
boot
field to
any other
bit
pattern
the
boot system
commands
override the
default boot
filenames
when
netbooting
For
example jumper
configuration
of 0-0-1-0 bits
through is
used
when
using the
boot system
flash
command
with
the
Flash
memory
card
The
system
creates boot filename
as part of the automatic configuration
processes
To form
the
boot
filename
the system
starts
with cisco
and
links the octal
equivalent
of
the
boot
field
number
dash
and
the
processor type
name
Table
5-1
lists
the default boot filenames
or actions for the
CSC/4
processor
The
list is
the same
for
the
CSC/3
processor
card however
csc3
is
substituted
for
csc4
Table 5-1 Default
Boot
FilenamesBoot
Field
Jumpers
Action/Filename Bit Bit Bit Bit
bootstrap
mode
RUM
software
cisco2-csc4
cisco3-csc4
cisco4-csc4
cisco5-csc4
cisco6-csc4
cisco7-csc4
ciscol0-csc4
ciscoll-csc4
ciscol2-csc4
ciscol3-csc4
ciscol4-csc4
ciscol5-csc4
ciscol6-csc4
ciscol7-csc4
bt17YVY111J
OUb
kvv
f1SfJ\
9/
02
Note
The
four
bits after the
boot
field
bits
and
in
the configuration
register
are
unused
and must
be
left
cleared
Bit
in
the configuration
register
controls the console
Break key
Setting
bit
to
the
factory
default
causes the processor
to ignore the console
Break key
Clearing
bit
to
causes the
processor
to interpret
Break
as
command
to
force
the
system
into the
bootstrap
monitor
suspending
normal
operation
Bit
in the
configuration
register
controls the use of
secondary bootstrap procedure
when
netbooting
If this bit
is set to secondary bootstrap
with the filename
boot-csc4 csc3
is
first
loaded
into
the system over the network
This bootstrap image then loads in the desired boot
file
completing
the netbooting process
Maintenance 5-5