Installation of CISCO 4948E IOS by TFTP Server
If your cisco switch IOS has been corrupted or deleted accidentally, Then you must follow these steps to reinstall it. If your switch at rommon> mode.
Note:- Plz turn off your anti-virus app. Otherwise your tftp server will not work properly.
Cabble and Connection Setting:-
- Connect a console cable PC and Switch.
- Ethernet cable connect with PC Lan and switch MGT (Management).
- Open Lan properties and put manually IP address, Subnet mask and default gateway.
(192.168.1.100) (255.255.255.0) (192.168.1.10)
TFTP App setting:-
- Install and Open tftp app and select Lan IP at server interface
- Select the current directory/folder where you placed ISO.bin file.
Setting up IP of Bootloader
Commands:-
rommon 1> set interface fa1 192.168.1.10 255.255.255.0
rommon 2> set ip route default 192.168.1.1
rommon 3>set TftpServer 192.168.1.100 Or
rommon 3> boot tftp://192.168.1.100/cat4500e-lanbase-mz.122-54.SG.bin
Received data packet # 44820
Loaded 22947640 bytes successfully.
Rommon reg: 0x00004780
Reset2Reg: 0x00009EFF
##
Fortooine controller 0x0B56D5A4..0x0B6AE5ED original size:0x001ABAC1
#################
diagsk5 version 4.1.0
===》》Disconnect Ethernet from MGT and put into switch Ethernet port #1《《===
Setting up IP of 4948E Switch VLAN
switch> en
switch# configure Terminal
switch (config)# int vlan 1
switch (config-if)# ip add 192.168.1.110 255.255.255.0
Switch(config-if)# no shut
Switch(config-if)# end
Switch#
*Mar 15 05:54:35.127: %SYS-5-CONFIG_I: Configured from console by console
Switch#
Copy IOS from TFTP Server to 4948E Switch
Switch#copy tftp: bootflash:
Address or name of remote host [192.168.1.100]? 192.168.1.100
Source filename [cat4500e-lanbase-mz.122-54.SG.bin]? cat4500e-lanbase-mz.122-54.SG.bin
Destination filename [cat4500e-lanbase-mz.122-54.SG.bin]? cat4500e-lanbase-mz.122-54.SG.bin
Accessing tftp://192.168.1.100/cat4500e-lanbase-mz.122-54.SG.bin...
Loading cat4500e-lanbase-mz.122-54.SG.bin from 192.168.1.100 (via Vlan1): !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK - 22947640 bytes]
Backup of IOS from 4948E Switch to (PC) TFTP
Switch# copy bootflash: tftp:
Source filename [cat4500e-lanbase-mz.122-54.SG.bin]? cat4500e-lanbase-mz.122-54.SG.bin
Address or name of remote host []? 192.168.1.100
Destination filename [cat4500e-lanbase-mz.122-54.SG.bin]? cat4500e-lanbase-mz.122-54.SG.bin
.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
22947640 bytes copied in 58.445 secs (392636 bytes/sec)
Install IOS Via USB
Method 2: Transferring IOS image using USB Flash drive.
Only Boot Loader (Rommon) mode supports USB flash drive.
Follow these steps as below.
- Take a USB of any size, format it using FAT16/FAT32.
- Copy a valid IOS to the USB drive.
- Insert USB to your Router/Switch.
- Reset you Router/Switch.
- Enter following commad.
switch: dir usbflash0:
6. Once you verify that it has detected the USB flash drive you type the following command
switch: boot usbflash0:c3560e-ipbasek9-mz.122-55.SE12.bin
7. Now boot up the newly downloaded Cisco IOS image.
switch: boot flash:c3560e-ipbasek9-mz.122-55.SE12.bin
Once boot success setup boot variable :
switch: set BOOT flash:c3560e-ipbasek9-mz.122-55.SE12.bin
Reload and test.