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20 C
ORE
B
UILDER
2500 I
NTELLIGENT
S
WITCHING
S
OFTWARE
V
ERSION
8.1.2
Installing the
System Software
The system software is organized in two files: an expander file
(
lpexpand
) and a compressed image file (
lp2500c
). The expander file
is a utility that expands the compressed image and moves it from flash
memory into random access memory on the system.
To install system software, you complete these four tasks:
■
Retrieve the expander file:
lpexpand
■
Retrieve the compressed image:
lp2500c
■
Reboot the system
■
Retrieve the compressed image again:
lp2500c
Detailed instructions for each task are provided next.
Loading the Expander File
To load the expander file onto the CoreBuilder 2500 system, follow these
steps:
1
To ensure that no other administrative sessions can occur during the
update process, lock the Administration Console:
a
From the top level of the Administration Console, enter:
system consoleLock
b
At the prompt, enter:
on
If you completed step 1 in “Installing the Diagnostic Software” earlier in
these release notes, the consoleLock is already set to on.
CAUTION: If another user logs into the system using telnet while a
software update is taking place, the software images that are stored in
flash memory may become corrupted.