B-21
Catalyst 3750 Switch Software Configuration Guide
78-16180-02
Appendix B Working with the Cisco IOS File System, Configuration Files, and Software Images
Working with Software Images
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 that you might have stored in flash memory.
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 and web
management files
This example shows some of the information contained in the info file. Table B-3 provides additional
details about this information:
system_type:0x00000000:c3750-i5-mz.121.11-AX
image_family:C3750
stacking_number:1.0
info_end:
version_suffix:i5-121.11-AX
version_directory:c3750-i5-mz.121.11-AX
image_system_type_id:0x00000000
image_name:c3750-i5-mz.121.11-AX.bin
ios_image_file_size:3973632
total_image_file_size:5929472
image_feature:LAYER_3|MIN_DRAM_MEG=64
image_family:C3750
stacking_number:1.0
board_ids:0x401100c4 0x00000000 0x00000001 0x00000003 0x00000002 0x00008000 0x00008002
0x40110000
info_end:
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_min_dram Specifies the minimum amount of DRAM needed to run this image
image_family Describes the family of products on which the software can be installed
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