Copying Image Files By Using Tftp - Cisco Catalyst 3550 series Software Configuration Manual

Working with Software Images
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

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.
This section includes this information:
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Preparing to Download or Upload an Image File By Using TFTP
Before you begin downloading or uploading an image file by using TFTP, do these tasks:
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Catalyst 3550 Multilayer Switch Software Configuration Guide
B-20
Appendix B
Description
Specifies the Cisco IOS image version string suffix
Specifies the directory where the Cisco IOS image and the HTML subdirectory are installed
Specifies the name of the Cisco IOS image within the tar file
Specifies the Cisco IOS image size in the tar file, which is an approximate measure of how
much Flash space is required to hold just the Cisco IOS image
Specifies the size of all the images (the Cisco 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
Preparing to Download or Upload an Image File By Using TFTP, page B-20
Downloading an Image File By Using TFTP, page B-21
Uploading an Image File By Using TFTP, page B-23
Ensure that the workstation acting as the TFTP server is properly configured. On a Sun workstation,
make sure that the /etc/inetd.conf file contains this line:
tftp dgram udp wait root /usr/etc/in.tftpd in.tftpd -p -s /tftpboot
Make sure that the /etc/services file contains this line:
tftp 69/udp
You must restart the inetd daemon after modifying the /etc/inetd.conf and /etc/services files.
Note
To restart the daemon, either stop the inetd process and restart it, or enter a fastboot
command (on the SunOS 4.x) or a reboot command (on Solaris 2.x or SunOS 5.x). For more
information on the TFTP daemon, refer to the documentation for your workstation.
Working with the Cisco IOS File System, Configuration Files, and Software Images
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