Cisco Systems 3 manual Erasing Files from a Full Boot Flash Memory SIMM, Router# dir bootflash

Chapter 3 Initial Switch Router Configurations

Using the Boot Flash Memory SIMM

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)

Note To retain existing images on boot flash, enter no when you are prompted to confirm erasing boot flash.

Erasing Files from a Full Boot Flash Memory SIMM

In the event that the boot flash memory is full, you must erase all the files in the boot flash memory file system before copying a new image file from the TFTP server.

Note When boot flash memory is full, it is important to first make a copy of a known good image
	file, and then copy a new system image file. In case the new image file you copy from the
	TFTP server is corrupted, you can revert to the copy of the known good system image file.
	For a detailed example on how to first make a copy of a known good image file, and then
	copy a new system image file, refer to the “Copying the System Image to the Switch
	Router” section on page 3-14.
	Use the following commands to first erase and clean boot flash memory and then copy the new system
	image from the TFTP server to boot flash memory beginning in privileged EXEC mode:
	Command	Purpose
Step 1
	Router# dir bootflash:	Displays the contents of boot flash memory,
		including the names of the images that
		currently reside there.
Step 2
	Router# copy tftp: bootflash:	Erases boot flash memory and copies a file
		from a TFTP server to boot flash memory.

	Catalyst 2948G-L3 and Catalyst 4908G-L3 Software Feature and Configuration Guide
78-10408-01, Cisco IOS Release 12.0(7)W5(15d)		3-9