3-7
Catalyst 2948G-L3 and Catalyst 4908G-L3 Software Feature and Configuration Guide
78-10408-01, Cisco IOS Release 12.0(7)W5(15d)
Chapter 3 Initial Switch Router Configurations
Using the Boot Flash Memory SIMM
Backing Up a System Image to a TFTP Server
To create a backup copy of your system image, you can copy system images from boot flash memory
to a Trivial File Transfer Protocol (TFTP) server.
In some implementations of TFTP, you must create a dummy file on the TFTP server and give it read,
write, and execute permissions before copying the file over it. Refer to your TFTP documentation for
more information.
Tips Before you copy software between the network server and boot flash memory in the switch
router, do the following:
– Make sure you have access to the network server, and obtain its IP address and name.
– Verify that the server has sufficient room to accommodate the Cisco IOS software image.
– Check the filename requirements and file space of the network server.
To create a backup of the system software on a TFTP server, use the following steps beginning in
privileged EXEC mode:
The following example demonstrates copying a specified system image file from the boot flash memory
to the default TFTP server:
Router# dir bootflash:
Directory of bootflash:/
1 -rw- 3173128 <no date> cat2948g-in-mz.120-7.W5.14.45
2 -rw- 3173364 <no date> cat2948g-in-mz.120-7.W5.14.46
16777216 bytes total (10430596 bytes free)
Router# copy bootflash: tftp:
Source filename []? cat2948g-in-mz.120-7.W5.14.46
Address or name of remote host []? 171.10.0.111
Destination filename [cat2948g-in-mz.120-7.W5.14.46]? yes
!!.!.!!!!!!!!!.!!!!!!!!!.!.!!!!!!!!!.!.!!.!.!!!!!!!!!.!.!.!!!!!!!!!.!!!!!!!!!.!!
!!!!!!!!.!.!!!!!!!!!.!!!!!!!!!!.!!!!!!!!!.!!!!!!!!!.!!!!!!!!!.!.!.!!!!!!!!!.!!.!
!!!!!!!!.!.!.!.!!!!!!!!!.!.!!.!.!!!!!!!!!.!!!!!!!!!.!.!!!!!!!!!!.!!!!!!!!!.!.!.!
!!!!!!!!.!!!!!!!!!.!!!!!!!!!.!!.!.!!!!!!!!!.!!.!.!.!!!!!!!!!!.!!!!!!!!!.!.!!.!!!
!!!!!!.!.!.!.!.!!!!!!!!!.!!.!.!.!!!!!!!!!.!!!!!!!!!!.!!!!!!!!!.!.!!.!!!!!!!!!.!!
!!!!!!!!.!.!.!.!!!!!!!!!.!!!!!!!!!.!.!!.!.!!!!!!!!!.!!.!.!.!.!!!!!!!!!!.!!!!!!!!
!.!.!!.!!!!!!!!!.!.!!!!!!!!!!.!!!!!!!!!.!!.!!!!!!!!!.!.!.!!!!!!!!!.!.!.!!!!!!!!!
!!!!!!!!.!!!!!!!!!.!.!.!!!!!!!!!.!!.!.!!!!!!!!!.!!.!.!.!!!!!!!!!.!!.!.!.!.!.!!!!
!!!
3173364 bytes copied in 743.840 secs (4271 bytes/sec)
Command Purpose
Step 1
Router# dir bootflash: Displays the contents of boot flash memory,
including the names of the images that
currently reside there.
Note the name of the image file you want to
copy.
Step 2
Router# copy bootflash: tftp: Copies a file from boot flash memory to a
TFTP server. Be sure to include a colon at the
end of the tftp parameter as shown in this
example.
