5-1
5 Software Maintenance
The storage medium can be a compact Flash (CF) card or a Flash card. In this chapter, only CF cards
are involved.
Introduction
Files
BootROM program file
The file is used for booting application at boot. A complete BootROM file includes two segments: basic
and extended.
Application program file
The router is available with Dual Image function. By default, the system defines and attempts to boot in
order with three boot files: main, backup, and secure, provided they are available with CF card. If the
router fails to boot with the secure boot file, it prompts the boot failure. For more information about the
boot files, refer to section “
Maintaining Application Program and Configuration File”.
The following table gives default names and types of boot files.
Table 5-1 Default names and types of the boot files
Boot file File name File type
Main boot file main.bin M
Backup boot file backup.bin B
Secure boot file secure.bin S
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