B-24
Cisco ME 3800X and 3600X Switch Software Configuration Guide
OL-23400-01
Appendix B Working with the Cisco IOS File System, Configuration Files, and Software Images
Working with 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:
• An info file, which serves as a table of contents for the tar file
• One or more subdirectories containing other images and files, such as Cisco IOS images
This example shows some of the information contained in the info file. Table B-3 provides additional
details about this information:
version_suffix: universal-122-52.0.112.EY
version_directory: me380x-universal.mz.122-52.111.EY
image_system_type_id: 0x00000000
image_name: me380x-universal.mz.122-52.111.EY.bin
ios_image_file_size: 16527872
total_image_file_size: 20685312
image_feature: IP|LAYER_2|MIN_DRAM_MEG=128
image_family: ME380x
board_ids: 0x00000029
info_end:
Copying Image Files By Using TFTP
You can download a switch image from a TFTP server or upload the image from the switch to a TFTP
server.
You download a switch image file from a server to upgrade the switch software. You can overwrite the
current image with the new one or keep the current image after a download.
You upload a switch image file to a server for backup purposes; this uploaded image can be used for
future downloads to the same or another switch of the same type.
Note Instead of using the copy privileged EXEC command or the archive tar privileged EXEC command, we
recommend using the archive download-sw and archive upload-sw privileged EXEC commands to
download and upload software image files.
Table B-3 info File Description
Field Description
version_suffix Specifies the Cisco IOS image version string suffix
version_directory Specifies the directory where the Cisco IOS image and the HTML subdirectory are installed
image_name Specifies the name of the Cisco IOS image within the tar file
ios_image_file_size Specifies the Cisco IOS image size in the tar file, which is an approximate measure of how
much flash memory is required to hold just the Cisco IOS image
total_image_file_size Specifies the size of all the images (the Cisco IOS image and the web management files) in the
tar file, which is an approximate measure of how much flash memory is required to hold them
image_feature Describes the core functionality of the image
image_family Describes the family of products on which the software can be installed
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