Cisco Catalyst 3750 Command Reference Manual page 35

Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
Defaults
The current software image is not overwritten with the downloaded image.
Both the software image and HTML files are downloaded.
The new image is downloaded to the flash: file system.
The BOOT environment variable is changed to point to the new software image on the flash: file system.
Image names are case sensitive; the image file is provided in tar format.
Compatibility of the stack protocol version on the image to be downloaded is checked with the version
on the switch stack.
Command Modes
Privileged EXEC
Command History Release
12.1(11)AX
Usage Guidelines
The /imageonly option removes the HTML files for the existing image if the existing image is being
removed or replaced. Only the Cisco IOS image (without the HTML files) is downloaded.
Using the /safe or /leave-old-sw option can cause the new image download to fail if there is insufficient
flash memory. If leaving the software in place prevents the new image from fitting in flash memory due
to space constraints, an error results.
If you used the /leave-old-sw option and did not overwrite the old image when you downloaded the new
one, you can remove the old image by using the delete privileged EXEC command. For more
information, see the
Use the /no-version-check option if you want to download an image that has a different stack protocol
version than the one existing on the switch stack. You must use this option with the /destination-system
option to specify the specific stack member to be upgraded with the image.
Use the /no-version-check option with care. All stack members, including the stack master, must have
Note
the same stack protocol version to be in the same switch stack. This option allows an image to be
downloaded without first confirming the compatibility of its stack protocol version with the version of
the switch stack.
You can upgrade more than one specific stack member by repeating the /destination-system option in
the command for each stack member to be upgraded.
Use the /overwrite option to overwrite the image on the flash device with the downloaded one.
If you specify the command without the /overwrite option, the download algorithm verifies that the new
image is not the same as the one on the switch flash device or is not running on any stack members. If
the images are the same, the download does not occur. If the images are different, the old image is
deleted, and the new one is downloaded.
After downloading a new image, enter the reload privileged EXEC command to begin using the new
image, or specify the /reload or /force-reload option in the archive download-sw command.
78-16181-01
Modification
This command was introduced.
"delete" section on page 2-63.
archive download-sw
Catalyst 3750 Switch Command Reference
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