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Catalyst 2948G-L3 and Catalyst 4908G-L3 Switch Router Software Feature and Configuration Guide
78-10408-03
Chapter 3 Configurations for the Layer 3 Switch Router
Updating the System Image
To copy both the known good system image and the new system image from a TFTP server to the file
system on your Layer 3 switch router, initiate a Telnet session or console connection to the Layer 3
switch router, perform the following task in privileged EXEC mode:
The following example shows how to erase a full bootflash memory file system, copy a known good
image, and copy the latest image using TFTP:
Router# copy tftp bootflash:
Address or name of remote host []? 172.10.00.00
Source filename []? domino/cat2948g-in-mz.120-7.W5.14.45
Destination filename [cat2948g-in-mz.120-7.W5.14.45]?
%Warning:There is a file already existing with this name
Do you want to over write? [confirm] yes
Accessing tftp://172.10.00.00/domino/cat2948g-in-mz.120-7.W5.14.45...
Erase bootflash: before copying? [confirm] yes
Erasing the bootflash filesystem will remove all files! Continue? [confirm] yes
Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
ee ...erased
Erase of bootflash: complete
Loading domino/cat2948g-in-mz.120-7.W5.14.45 from 172.10.00.00 (via FastEthernet 1):
!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!
!!!!!
[OK - 3173128/6345728 bytes]
Verifying checksum... OK (0x799F)
3173128 bytes copied in 177.668 secs (17927 bytes/sec)
Router# dir bootflash:
Directory of bootflash:/
1 -rw- 3173128 <no date> cat2948g-in-mz.120-7.W5.14.45
16777216 bytes total (13604024 bytes free)
Router# copy tftp: bootflash:
Address or name of remote host [172.10.00.00]?
Command Purpose
Step 1
Router# dir bootflash: Display the contents and available space in bootflash memory. If
there is not enough free space to copy the new system image, do
Steps 2 through 5. If there is enough space, proceed to Step 4.
Step 2
Router# copy tftp: bootflash: Erase bootflash memory and copy a file from a TFTP server to
bootflash memory. Make sure you copy the known good system
image file.
Step 3
Router# dir bootflash: Display the contents of bootflash memory. This step confirms that
space was available in bootflash memory and the known good
image file was copied as expected. You can then proceed to
download the latest image.
Step 4
Router# copy tftp: bootflash: Initiate a TFTP session to copy the new system image from the
TFTP server.
Step 5
Router# dir bootflash: Display the contents of bootflash memory again, to confirm that
the latest image file was copied as expected.