H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 49)

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The following gives the default names and types of the system software image files and their priorities for
booting:
• Main file. The default name is main.bin and the file type is M. It is the default system software image
file for system boot.
• Backup file. The default name is backup.bin and the file type is B. If the system fails to boot using the
main system software image file, it tries the backup system software image file.
• Secure file. The default name is secure.bin and the file type is S. If the system fails to boot using the
backup system software image file, it tries the secure system software image file. If the system fails
to boot using the secure file, it gives a startup failure message.
Note the following guidelines:
• Only the system software image files of the M, B, and S types can be used to boot the system, while
a system software image file of the N type (a system software image file other than the M, B, or S
type) cannot.
• You can rename a system software image file in the Flash memory at the command line interface
(CLI) after the system software image file is loaded. You can modify the file type of the M, B, and
N files through the BootWare menu or at the CLI after application startup, while you cannot modify
the file type of the S-type system software image file.
• The secure file is the last resort for system boot. You cannot change the file type of the secure file or
turn another type of file into a secure file by modifying the file type. The secure file can only be
downloaded from the BootWare menu.
• Only one file of the same type (M, B, or S) can exist in the Flash memory at a time. For example, if
a system software image file of type M+B exists in the CF card, another file of type M or B cannot
exist. If the type of another file is changed to B, the existing type M+B file changes to a file of type
M.
Configuration files
With the file name extension of .cfg, configuration files are used to store the configuration information of
the switch. Typically, no configuration file with the name extension .cfg is provided when the switch is
delivered. The switch loads the default configuration at startup. If the configuration file is deleted or
missing, the switch also loads the default configuration at reboot.
• The access control engine has only one configuration file with no backup.
• The switching engine has main and backup configuration files, which are managed like the system
software image files on the access control engine.