6-1
6
Maintaining Software
Overview
Files
Three types of files need to be managed on the firewall:
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BootWare program file
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Application file
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Configuration file
BootWare Program File
The BootWare program file is used for booting the application program when the firewall starts and is
stored in the flash memory. The entire BootWare program consists of a basic section and an extended
section.
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The basic section is used for the basic initialization of the system.
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The extended section provides abundant human-computer interaction (HCI) functions and is used
to initialize interfaces and upgrade the application program and the boot system.
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The entire BootWare program is the combination of the basic section and the extended section.
After the basic section is loaded, you can load and upgrade the extended section on the menu of
the basic section.
Application Files
The firewall supports the dual image function. By default, the system defines three types of application
files for boot.
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Main application file (with the attribute of M)
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Backup application file (with the attribute of B)
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Secure application file (with the attribute of S)
These three types of application files are stored in a CF card.
By default, they are written into the built-in CF card before delivery.
If you have uploaded all the three types of application files into the built-in CF card, the system will boot
using these three files in the M-B-S order. For information about attribute and boot order modifications
for application files, refer to "Maintaining Application and Configuration Files” on page 6-29.
The following gives the default names of the application files and their priorities for system boot.
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Main application file. The default name is main.bin. It is the default application file used for system
boot.
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Backup application file. The default name is backup.bin. When booting with the main application
file fails, the system uses the backup application file for startup.
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Secure application file. The default name is secure.bin. When booting with the main and backup
application files fails, the system uses the secure application file for startup. If booting with the
secure application file fails, the system displays a boot failure.
