Tar File Format Of Images On A Server Or Cisco.com - Cisco 2950G 24 - Catalyst Switch Software Configuration Manual

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

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

Software images located on a server or downloaded from Cisco.com are provided in a tar file format,
which contains these files:
•
•
•
•
•
This example shows the information contained in the info and info.ver files:
version_suffix: i6k2l2q4-121-0.0.16.EA1
version_directory: c2950lre-i6k2l2q4-mz.121-0.0.16.EA1
image_name: c2950lre-i6k2l2q4-mz.121-0.0.16.EA1.bin
ios_image_file_size: 3214848
total_image_file_size: 4719616
image_feature: LAYER_2|MIN_DRAM_MEG=32
image_family: C2950lre
info_end:
Table B-3
Table B-3 info and info.ver File Description
Field
version_suffix
version_directory
image_name
ios_image_file_size
total_image_file_size
image_feature
image_family
image_min_dram
78-14982-01
info file
The info file is always at the beginning of the tar file and contains information about the files within
it.
IOS image
Web management files needed by the HTTP server on the switch
LRE binary files needed for the proper functioning of LRE interfaces and LRE CPE devices
info.ver file
The info.ver file is always at the end of the tar file and contains 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.
describes the contents of the info and info.ver files.
Description
Specifies the IOS image version string suffix
Specifies the directory where the IOS image and the HTML subdirectory are installed
Specifies the name of the IOS image within the tar file
Specifies the IOS image size in the tar file, which is an approximate measure of how much
Flash space is required to hold just the IOS image
Specifies the size of all the images (the IOS image and the HTML files) in the tar file, which
is an approximate measure of how much Flash space is required to hold them
Describes the core functionality of the image
Describes the family of products on which the software can be installed
Specifies the minimum amount of DRAM needed to run this image
Catalyst 2950 Desktop Switch Software Configuration Guide
Working with Software Images
B-21