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Catalyst 3550 Multilayer Switch Software Configuration Guide
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AppendixB Working with the IOS File System, Configuration Files, and Software Images Working with Software Images
The download algorithm verifies that the image is app rop ri ate for t he sw it ch m ode l a nd tha t e nou gh
DRAM is present, or it aborts the process and reports an error. If you spec ify the /overwrite option, the
download algorithm removes the existing image on the Flash device whether or not it is the same as the
new one, downloads the new image, and then reloads the software.
Note If the Flash device has sufficient space to hold two imag es an d you w ant to ove rwr ite one of the se
images with the same version, you must specify the /overwrite option.
If you specify the /leave-old-sw, the existing files are not removed. If there is n ot enough space to install
the new image and keep the current running image, the download process stops, and an error messag e is
displayed.
The algorithm installs the downloaded image on the system board Flash device (flash:). The image is
placed into a new directory named with the software version string, and the BOOT environme nt variable
is updated to point to the newly installed image.
If you kept the old image during the download process (you spec ified the /leave-old-sw keyword), you
can remove it by entering the delete /force /recursive filesystem:/file-url privileged EXEC command.
For filesystem, use flash: for the system board Flash device. For file-url, enter the directory name of the
old image. All the files in the directory and the directory are removed.
Caution For the download and upload algorithms to operate properly, do not rename image names.
Step3 archive download-sw /overwrite /reload
tftp:[[//location]/directory]/image-name.tar Download the image file from the TFTP server to the switch, and
overwrite the current image.
•The /overwrite option overwrites the software image in Flash
with the downloaded image.
•The /reload option reloads the system after downloadi ng th e
image unless the configuration has been chan ged and not been
saved.
•For //location, specify the IP address of the TFTP server.
•For /directory/image-name.tar, specify the directory
(optional) and the image to download. Directory and image
names are case sensitive.
Step4 archive download-sw /leave-old-sw /reload
tftp:[[//location]/directory]/image-name.tar Download the image file from the TFTP server to the switch, and
keep the current image.
•The /leave-old-sw option keeps the old software version after
a download.
•The /reload option reloads the system after downloadi ng th e
image unless the configuration has been chan ged and not been
saved.
•For //location, specify the IP address of the TFTP server.
•For /directory/image-name.tar, specify the directory
(optional) and the image to download. Directory and image
names are case sensitive.
Command Purpose