3-9
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
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.
