C H A P T E R
11-1
Cisco 1240 Connected Grid Router Hardware Installation Guide
OL-26223-04
11
Using the SD Flash Memory Module
This chapter describes the Secure Digital (SD) flash memory module (or SD card) that is used with the
Cisco 1240 Connected Grid Router (CGR 1240 or router), and includes instructions for installing and
removing the SD card.
This chapter contains the following sections:
•
SD Flash Memory Module, page 11-1
•
Accessing the SD Card, page 11-2
•
SD Card Status, page 11-4
•
Securing the SD Card with a Password, page 11-5
•
Related Commands, page 11-5
SD Flash Memory Module
The router features an SD card connector, which supports a single Cisco SD flash memory module (SD
card). The SD card stores router data and software, including:
•
Router operating software
•
Running configurations
•
Network management software configuration
•
Network registration data
•
Router firmware
The topics in this section include:
•
SD Card File System, page 11-1
•
Supported SD Cards, page 11-2
SD Card File System
The SD card uses a Linux-based EXT2/3 file system. The router configuration is stored in a binary file
in an invisible partition on the card.