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Catalyst 2948G-L3 and Catalyst 4908G-L3 Switch Router Software Feature and Configuration Guide
78-10408-03
Chapter 3 Configurations for the Layer 3 Switch Router
Using the Bootflash Memory SIMM
Note When bootflash memory is full, it is important to make a copy of a known good image file, and then
copy a new system image file. If the new image file you copy from the TFTP server becomes
corrupted, you can revert to the copy of the known good system image file. For detailed information
on how to make a copy of a known good image file, and then copy a new system image file, see the
“Copying the System Image to the Layer 3 Switch Router” section on page 3-13.
To erase and clean bootflash memory and then copy the new system image from the TFTP server to
bootflash memory, perform the following procedure, beginning in privileged EXEC mode:
The following example demonstrates how to erase and clean bootflash memory and then copy the new
system image from the TFTP server to the bootflash memory SIMM.
Note To erase a full bootflash memory, enter yes when you are prompted to confirm erasing bootflash
memory.
Router# copy tftp bootflash:
Address or name of remote host []? 172.10.00.00
Source filename []? domino/cat2948g-in-mz.120-7.W5.14.46
Destination filename [cat2948g-in-mz.120-7.W5.14.46]?
Accessing tftp://172.10.00.00/domino/cat2948g-in-mz.120-7.W5.14.46...
Erase bootflash: before copying? [confirm] yes
Erasing the bootflash filesystem will remove all files! Continue? [confirm] yes
Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
ee ...erased
Erase of bootflash: complete
Loading domino/cat2948g-in-mz.120-7.W5.14.46 from 172.10.00.00 (via FastEthernet1):
!!.!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!
!!!!!
[OK - 3173128/6345728 bytes]
Verifying checksum... OK (0x799F)
3173128 bytes copied in 177.668 secs (17927 bytes/sec)
Router# dir bootflash:
Directory of bootflash:/
1 -rw- 3173128 <no date> cat2948g-in-mz.120-7.W5.14.46
16777216 bytes total (13604024 bytes free)
Command Purpose
Step 1
Router# dir bootflash: Display the contents of bootflash memory,
including the names of the images that
currently reside there.
Step 2
Router# copy tftp: bootflash: Erase bootflash memory and copy a file from
a TFTP server to bootflash memory.