Chapter 7: Manually Loading System Images
August 1997 Page 7-23
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no boot system flash confi guration command to revert to
booting from ROM. For example, you might want to revert to booting
from ROM if you do not yet need this f unct io n al ity, if you choose to
boot from a network server, or if you do not have the proper image in
Flash memory. After you enter the no boot system flash com-
mand, use the copy running-config startup-config
command to save the new configuration command to the startup con-
figuration.
Copy Configuration Files from the Router to a Network Server
You can copy configuration file s from the router to a TFTP server.
You might do this to back up a current configuration file to a server
before changing its contents, allowing you to later restore the original.
Usually, the configuration file that you copy to must already exist on
the TFTP server and be globally writable before the TFTP server al
lows you to write to it.
To store configuration infor mation on a TFTP networ k server, com-
plete these tasks in the EXEC mode:
1. Specify that the running or startup config uration file be stored on
a network server.
copy {running-config | startup-config} tftp
2. Enter the IP address of the network server.
ip-address
3. Enter the name of the configuration file to store on the server.
filename
4. Confirm the entry.
y
The command prompts you for the destination host's address and a
filename, as the following example illustrates. This example copies
configuration file from a router to a TFTP server:
Tokyo# copy running-config tftp
Remote host [131.108.2.155]?
Name of configuration file to write [tokyo-confg]?
Write file tokyo-confg on host 131.108.2.155?[confirm] y
#
Writing tokyo-confg!!! [OK]