
Nortel Switched Firewall 2.3.3 User’s Guide and Command Reference
240
Upgrading and reinstalling the software
213455-L, October 2005
Reinstalling software
Reinstalling the software is seldom required except after a serious malfunction.
To reinstall software on the Firewall, you must connect directly to the firewall serial port and
log in as the
boot
user. When the reinstallation is performed, the new Firewall is reset to its
factory default configuration. All previous configuration data and software is erased, including
old software image versions or upgrade packages.
N
OTE
–
Because a reinstallation erases all configuration data (including network settings), it is
a good idea to first save all configuration data to a file on a TFTP server. Using the
ptcfg
command, installed keys and certificates are included in the configuration data and can later be
restored by using the
gtcfg
command. For more information about these commands, see the
Configuration Menu on page 279
.
There are two methods of reinstalling software on the firewall.
Using the .iso image of the software
Nortel recommends this method to copy the .iso version of the software on a CD ROM
and boot from it. This reinstall removes the current configuration and reimages the
firewall. This type of reinstall is done by logging in as root user.
Using the .img image of the software
This method installs the .img version of the software using TFTP or FTP. This reinstall
overwrites the current configuration. This type of reinstall is done by logging in as boot or
root user.
Using the ISO image
1.
Save your current configuration to your TFTP server before installing new software.
See the CLI commands /cfg/ptcfg and /cfg/gtcfg. Configuration parameters are lost when you
install an ISO image.
2.
Put a blank CD in your CD-ROM burner and burn the .iso image onto the blank CD.
3.
When prompted, log in as root (no password is necessary).