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Image location on the switch, Tar file format of images on a server or ibm.com – IBM 12.1(22)EA6 User Manual

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B-20

Cisco Systems Intelligent Gigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide

24R9746

Appendix B Working with the Cisco IOS File System, Configuration Files, and Software Images

Working with Software Images

Image Location on the Switch

The software image is stored as a .bin file in a directory that shows the version number. A subdirectory
contains the HTML files needed for web management. The image is stored on the system board flash
memory (flash:).

You can use the show version privileged EXEC command to see the software version that is currently
running on your switch. In the display, check the line that begins with

System image file is...

. It

shows the directory name in flash memory where the image is stored.

You can also use the dir filesystem: privileged EXEC command to see the directory names of other
software images you might have stored in flash memory.

tar File Format of Images on a Server or IBM.com

Software images located on a server or downloaded from ibm.com are provided in a tar file format,
which contains these files:

info file

The info file is always at the beginning of the tar file and has information about the files within it.

Cisco IOS image

Web management files needed by the HTTP server on the switch

info.ver file

The info.ver file is always at the end of the tar file and has the same information as the info file.
Because it is the last file in the tar file, its existence means that all files in the image have been
downloaded.

This example shows the information in the info and info.ver files:

version_suffix:i6q4l2-121-0.0.42.EA1

version_directory:cigesm-i6q4l2-mz.121-0.0.42.EA1

image_name:cigesm-i6q4l2-mz.121-0.0.42.EA1.bin

ios_image_file_size:3038720

total_image_file_size:5404672

image_feature:LAYER_2|MIN_DRAM_MEG=32

image_family:CIGESM

image_min_dram:32

info_end:

Table B-3

info and info.ver File Description

Field

Description

version_suffix

Specifies the software image version string suffix

version_directory

Specifies the directory where the software image and the HTML subdirectory are installed

image_name

Specifies the name of the software image within the tar file

ios_image_file_size

Specifies the software image size in the tar file, which is an approximate measure of how much
flash space is required to hold just the software image

total_image_file_size

Specifies the size of all the images (the software image and the HTML files) in the tar file,
which is an approximate measure of how much flash space is required to hold them

image_feature

Describes the core functionality of the image