B-1
Cisco IAD2430 Series Integrated Access Devices Software Configuration Guide
OL-4306-03
A P P E N D I X
B
Formatting the Flash Memory
This appendix describes how to format the flash memory into a Class B flash file system, known as the
low-end file system (LEFS), or into a Class C flash file system, which is similar to the standard DOS
file system. It also describes how to perform file and directory operations in each file system.
Note
The IAD2435 IAD does not support LEFS, but supports Disk Operating System Filing System (DOSFS)
and refers to internal compact flash as flash only.
This appendix presents the following major topics:
•
Formatting Procedures for Flash Memory, page B-1
•
File and Directory Operations, page B-5
For additional information on formatting flash memory, see the Maintaining System Memory section in
the
Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2
document.
Formatting Procedures for Flash Memory
The following sections show formatting procedures for internal and external flash memory.
Formatting Procedures
We recommend that you erase (Class B) or format (Class C) new flash memory to initialize them with
either a Class B or Class C flash file system. This ensures proper formatting and enables the ROM
monitor to recognize and boot the flash memory.
Note
Flash memory that is formatted with the standard DOS file system does not support booting from the
ROM monitor.
Determining the File System on Flash Memory
To determine the file system of external flash memory, enter the
show slot0: all
command.
Note
slot0
is not supported on the IAD2435 IAD.