AIS AI2524 Verify the Image in Flash Memory, Display System Image and Configuration Information

Chapter 7: Manually Loading System Images

4.Save the configuration file to your startup configuration. This step saves the configuration to NVRAM.

copy running-config startup-config

In this example, the buffer size is set to 50000 bytes:

Router1# configure terminal Router1(config)# boot buffersize 50000 ^Z

Router1# copy running-config startup-config

Verify the Image in Flash Memory

Before booting from Flash memory, verify that the checksum of the image in Flash memory matches the checksum listed in the README file that was distributed with the system software image. The check sum of the image in Flash memory is displayed at the bottom of the screen when you issue th copy tftp flash command. The RE ADME file is copied to the network server automatically when you in- stall the system software image on the server.

Note:	If the checksum value does not match the value in the
	README file, do not reboot the router. Instead, issue the
	copy command and compare the checksums again. If the
	checksum is repeatedly wrong, copy the original system
	software image back into Flash memory before you reboot
	the router from Flash memory. If you have a corrupted
	image in Flash memory and try to boot from Flash, the
	router will start the system image contained in ROM
	(assuming that booting from a network server is not
	configured). If ROM does not contain a fully functional
	system image, the router will not function and must be
	reconfigured through a direct console port connection.

Display System Image and Configuration Information

Perform these tasks in EXEC mode to display information about sys- tem software, system image files, and configuration files:

1.List information about Flash memory, including system image filenames and amounts of used and remaining memory.

show flash

August 1997	Page 7-9
2524UM